I Wicked Down to Increase Burn Time but Now My Hot Throw Is Weak and Wax Remains Around the Jar — How Do I Increase Candle Life Without Under-Wicking?
Aktie
Eco wicks from ₹5.90 each Coconut soy wax from ₹650 / kg Stocked in India · ships nationwide
CSI diagnostic guides · burn time
You did not add burn time. You moved it out of the customer's hands and into the ring of wax on the glass.
★★★★★
"all the materials are high quality and ultimate fragrance range"
Arminder KaurVerified buyer · Mar 2026
Premium Coconut Soy Wax CSI 468
★★★★★
"This bamboo wick holder doesn’t exert any pressure on the wicks… and it is a very useful product 👌🏻👌🏻.."
Lalitha JaganAug 2024
Bamboo Wick Holder
★★★★★
"Very good"
Tina Lynette Lazaro MogantiVerified buyer · Dec 2025
Black Matte Glass Jar
★★★★★
"This needle is very helpful as it doesn’t damage the mould and there is no leakage of wax while pouring.. I would definitely recommend this .."
LJAug 2024
Premium Candle Wicking Needle
★★★★★
"I love all the products...I received it without any damages...love to reorder again❤️"
Kaushiki SatarkarVerified buyer · Apr 2025
Luxury Soy Wax Chunks
★★★★★
"all the materials are high quality and ultimate fragrance range"
Arminder KaurVerified buyer · Mar 2026
Premium Coconut Soy Wax CSI 468
★★★★★
"This bamboo wick holder doesn’t exert any pressure on the wicks… and it is a very useful product 👌🏻👌🏻.."
Lalitha JaganAug 2024
Bamboo Wick Holder
★★★★★
"Very good"
Tina Lynette Lazaro MogantiVerified buyer · Dec 2025
Black Matte Glass Jar
★★★★★
"This needle is very helpful as it doesn’t damage the mould and there is no leakage of wax while pouring.. I would definitely recommend this .."
LJAug 2024
Premium Candle Wicking Needle
★★★★★
"I love all the products...I received it without any damages...love to reorder again❤️"
Kaushiki SatarkarVerified buyer · Apr 2025
Luxury Soy Wax Chunks
Reviews collected and published through Judge.me on candlemakingsuppliesindia.store. Wording is unedited.
✓ Wall, throw and hours measured together ✓ No burn hours claimed for any CSI product ✓ Bulk pricing & GST invoicing on WhatsApp
Candle Business Guides · Burn Time × Wall Clearance
Hours and wall clearance trade against each other at a measurable rate — in the worked bracket below, roughly 0.81 hours for every millimetre of wall cleared. The way out is to stop buying hours from the wick and start buying them from grams and jar geometry.
2.9 hours
what 10 g of extra fill buys at a measured 3.4 g per hour — added fuel in the same jar diameter, with no loss of pool, throw or wall clearance · CSI live pricing, September 2026
Quick answers — read this first
Why did wicking down cost me throw? Because the melt pool is the surface the fragrance leaves from, and pool area goes with the square of its radius. A 22 mm pool in a 33 mm jar is 44% of the available surface. That is geometry, not a throw measurement — but it is why a smaller wick usually takes throw with it.What is the exchange rate? In the bracket below, going from an 11 mm wall to a 3 mm wall cost 6.5 hours across 8 mm — about 0.81 hours per millimetre. Your figures will differ. The point is that you can measure the trade instead of guessing at it.
So how do I add hours honestly? Three levers, in this order: more grams in the same footprint (a deeper jar of the same diameter), a diameter that suits the wick you can actually buy, and only then the smallest wick candidate that still clears your wall. Care instructions are a fourth thing and not a formulation gain.
Can I just go one wick size down? Often there is nowhere to go. CSI lists two Eco cotton sizes (Thin C1 and Thick C2), plus cotton braided and wooden wicks. Below C1 there is no rung, so "one size down" is not a move you can make — you change type, count or jar.
The short answer
Measure the wall in millimetres, not in adjectives: jar internal radius minus pool radius at the end of a fixed session. One steel rule, two numbers, and the whole trade-off becomes arithmetic.
Buy hours with grams: at a constant measured burn rate, hours scale directly with usable fill. Ten more grams at 3.4 g per hour is 2.9 more hours — with no loss of pool, throw or clearance.
Then match the diameter to the wick: the same wick that leaves an 11 mm collar in a 6.6 cm jar can leave about 2 mm in a 5.6 cm one. Changing the vessel changes the rate too, so re-measure rather than assuming.
In this guide
Bar length is the unmelted wall in millimetres; pool area is the share of the jar's surface the melt pool covers, which is geometry rather than a throw reading. Every figure is one maker's own log — substitute yours.
Both cotton sizes · no diameter stated
Eco Candle Wicks · C1 ₹5.90 · C2 ₹9.44
Narrower jar · stated 6 cm diameter
Amber Shiny Glass Jar · ₹47.20 each
Tell us your jar's internal diameter
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Straight answer
How do I increase candle life without under-wicking it?
Buy the hours with grams and geometry, not with wick power. Wicking down works on the stopwatch for one reason and one reason only: a smaller pool consumes less per hour. It pays for that with the same pool — which is the surface your fragrance leaves from and the thing that has to reach the glass. In the worked bracket below, a 150 g candle in a jar measuring 33 mm internal radius ran 34.1 hours on Eco C1 with an 11 mm wall, a 22 mm pool covering 44% of the jar's surface and 34 g stranded. On C2 it ran 27.6 hours with a 3 mm wall, an 83% pool and 9 g stranded. That is 0.81 hours surrendered per millimetre of wall cleared — and it is the exchange rate you should refuse to pay twice. Instead: at a measured 3.4 g per hour, 10 g of extra fill is 2.9 more hours, which is why a deeper jar of the same 6 cm diameter beats a thinner wick every time. And the same C1 that leaves 11 mm in a 6.6 cm jar left about 2 mm in the stated 6 cm Amber Shiny jar. Fix the diameter, add the grams, then pick the smallest wick candidate that still clears your wall — and remember there is no rung below C1 to step down to.
One line: hours come from fill weight and jar geometry; the wick's only job is to make all of that fill reachable.
A five-candidate bracket costs ₹957.80 in wicks — C1 ₹59 for ten, C2 ₹188.80 for twenty, cotton braided ₹120 for ten, wooden ₹590 for ten — and the leftovers go straight into production. The wax and jars are the real spend.
Shop candle wicks
What wicking down actually did
You did not slow the candle down. You shrank it, and then timed the smaller candle.
A smaller wick draws less molten wax per hour, so the clock runs longer. Nothing else about the candle improved, and two things got worse at once. The first is the wall — wax outside the pool is not fuel, so the candle's usable fill dropped while its label weight stayed the same. The second is throw, and the reason is geometric rather than mysterious.
Fragrance leaves a candle from the surface of the molten pool. That surface is a disc, and the area of a disc goes with the square of its radius. So a pool that looks like it covers two thirds of the jar covers much less than that. In the worked example, a 22 mm pool radius in a 33 mm jar is 44% of the available surface — less than half. Push the pool out to 30 mm and the same jar gives you 83%. That is not a throw measurement and we are not claiming a percentage change in throw; it is arithmetic about how much surface exists. But it is the mechanism behind the complaint in the title.
Pool radius against available surface · 33 mm internal radius
Why a pool that "nearly reaches" is not nearly as big as it looks
| Pool radius | Unmelted wall | Share of the jar's surface the pool covers | What the maker sees |
|---|---|---|---|
| 22 mm | 11 mm | 44% | An obvious collar; throw fades after the first sessions |
| 27 mm | 6 mm | 67% | A visible rim; throw present but inconsistent |
| 29 mm | 4 mm | 77% | A thin rim many buyers forgive |
| 30 mm | 3 mm | 83% | Essentially a full pool to the eye |
| 32 mm | 1 mm | 94% | Edge to edge |
The mistake: treating "longer" and "better" as the same axis. They are two different measurements and wicking down moves them in opposite directions. Before you change anything, write down which three numbers you are optimising — usually usable hours, wall in millimetres, and throw at 30 and 120 minutes — and insist that a candidate improve at least one without ruining another. A candidate that adds hours while doubling the wall has not improved the candle; it has moved the problem into the bin. The throw scoring method is in how to test hot throw before launching a candle fragrance, and the wick-and-throw link in wrong wick size is killing your hot throw.
Measuring the wall in millimetres
"Some wax remains around the jar" is not a measurement, and it cannot be compared across candidates. A millimetre figure can. Take it the same way every time and it becomes the most useful single number in a slow-burn investigation, because it tells you directly how far short of the glass your wick is falling.
1
Measure the jar's internal diameter at the wax line, onceNot the outer rim and not the label. Put a steel rule across the inside of the empty jar at the height your wax will sit and halve it — in the example, 6.6 cm internal, so a radius of 33 mm. Product pages give you outer dimensions: the 150 gram jar page states a 7 cm outer diameter and an approximate 6.5 cm base, and glass has walls.
2
Burn a fixed session, then measure the pool before it skinsFour hours is a sensible session because it is close to real use. Extinguish and measure the molten pool across its widest point immediately, while the edge is still visible as liquid. Halve it for the radius. Record both numbers; do not record a judgement.
3
Subtract: wall = internal radius − pool radius33 − 22 = 11 mm. That is your wall for that candidate at that session length. It is also the number to put in a specification, because "no visible wall" means different things to different people and 2 mm does not.
4
Repeat for four consecutive sessions before concluding anythingA pool widens across sessions. If your wall is still shrinking session to session, you are reading the candle too early and the wick may be fine. If the wall has flattened and a measurable collar remains, the wick cannot finish that diameter. Centring errors show up here too — see how to keep the wick straight, and a wicking needle or a bamboo wick holder fixes most of them at the pour.
5
Pair the wall with grams and with throw, in the same rowWeigh the whole candle cold before and after each session for grams per hour, and score throw at 30 and 120 minutes the same way each time. A wall figure on its own tempts you to chase zero; a wall figure sitting next to hours and throw forces the trade-off into the open.
One rule, three numbers, one row
Keep one line per session per candle, in this order: internal radius · pool radius · wall · grams lost · session hours · throw at 30 min · throw at 120 min · flame notes · jar safe to hold. Nine fields, written in pencil, and every table on this page falls out of them. A log you cannot read back in a month is a test you will have to run again.The exchange rate: hours per millimetre
Once wall and hours sit in the same table you can price the trade. Every candidate below is the same 150 g fill of Premium Coconut Soy CSI 468 at 8% with Woody Oud, in the same jar, cured together, burned on the same schedule. Only the wick changed.
Five candidates in one 33 mm jar · 150 g fill at 8%
What each millimetre of wall cleared costs in hours
| Candidate | Wall | Pool area share | Burn rate | Residue | Stranded value | Usable hours | Hours per mm cleared vs C1 |
|---|---|---|---|---|---|---|---|
| Eco C1 single (where you are now) | 11 mm | 44% | 3.4 g/h | 34 g | ₹32.66 | 34.1 | — |
| Performance Wooden single | 6 mm | 67% | 4.4 g/h | 19 g | ₹18.25 | 29.8 | 0.87 h/mm |
| Cotton Braided single | 4 mm | 77% | 4.9 g/h | 13 g | ₹12.49 | 28.0 | 0.88 h/mm |
| Eco C2 single | 3 mm | 83% | 5.1 g/h | 9 g | ₹8.64 | 27.6 | 0.81 h/mm |
| Eco C1 double | 1 mm | 94% | 6.0 g/h | 7 g | ₹6.72 | 23.8 | 1.03 h/mm |
Worked out above: usable hours = (150 g fill − residue) ÷ burn rate. C1: (150 − 34) ÷ 3.4 = 34.1 h. C2: 141 ÷ 5.1 = 27.6 h. Wooden: 131 ÷ 4.4 = 29.8 h. Braided: 137 ÷ 4.9 = 28.0 h. C1 double: 143 ÷ 6.0 = 23.8 h. Hours per mm = (34.1 − candidate hours) ÷ (11 mm − candidate wall). Stranded value = (residue × 0.92 × ₹0.65 for CSI 468 at ₹650/kg) + (residue × 0.08 × ₹4.5312 for Woody Oud at ₹2,265.60 / 500 gm). Pool area share = (pool radius ÷ 33)². A 150 g candle at 8% is 138 g of wax (₹89.70) and 12 g of oil (₹54.37). Walls, pools, rates and residues are a maker's own measurements.
Three readings from that table. First, the exchange rate is remarkably steady at roughly 0.8 to 1.0 hours per millimetre across four quite different candidates, which is what you would expect if hours are mostly a function of how much surface is molten. Second, the candidate that clears the most wall gives up the most hours — there is no free lunch inside the wick column. Third, and most usefully: the hours you lose clearing the wall are smaller than the wax you recover. Going from C1 to C2 cost 6.5 hours and converted 25 g of stranded wax and oil (₹24.02 of material) back into usable fuel.
Don't read the "hours per mm" column as a law of nature. It is one maker's five candidates in one jar with one wax and one oil. Change the wax and the number moves; change the fragrance and it moves again, because fragrance composition can affect how a wick performs. Which is exactly why you run the bracket on your recipe rather than adopting these figures. No CSI page publishes a burn rate, a burn time or hours per gram for any wax, wick or jar, so there is no shortcut available here — to us or to you.
Four ways to add hours that are not the wick
If 0.8 hours per millimetre is the price of clearing the wall, the sensible response is to get your hours from somewhere that does not charge in wall thickness. There are four places to look, and the first two are almost always better value than anything in the wick column.
Four levers, priced
Where hours can come from without starving the wick
| Lever | The arithmetic | What it costs | The catch |
|---|---|---|---|
| More grams, same diameter | At a constant 3.4 g/h, +10 g = +2.9 hours. A 130 g fill in a 6 cm jar against a 120 g fill in the same diameter: 36.5 h against 33.5 h | A deeper vessel. The Shot Glass Jar states 130 g fill, 8 cm height, 6 cm diameter at ₹288 for the listed pack; the Amber Shiny jar states 120 gm, 6 cm diameter, 6.5 cm height at ₹47.20 each | Depth is not free forever — a very deep jar can weaken a wick further down. Measure the bottom third separately |
| Narrower diameter, same wick | C1's 22 mm pool is a 11 mm wall in a 33 mm jar and about a 2 mm wall in a 28 mm one — 86% pool area instead of 44% | A different jar; ₹47.20 each for the stated 6 cm Amber Shiny | Changing the vessel changes the rate as well as the wall, so the 3.4 g/h figure must be re-measured, not carried over |
| The smallest wick that still clears | Pick the lowest-power candidate whose wall meets your line — in the table, C2 at 3 mm rather than C1 double at 1 mm, keeping 3.8 hours | ₹3.54 to move from C1 to C2; ₹957.80 for a five-candidate bracket in the smallest packs | It is a formulation change, so the burn-time claim and the throw score are retested from scratch |
| Care instructions | Session length and trimming genuinely move total hours in a customer's hands | Printing | This is not a formulation gain and cannot be claimed as burn time. State it as a variable, not a feature |
The first lever deserves emphasis because it is so often overlooked. At a fixed burn rate, hours are directly proportional to usable fill. That makes a deeper jar of the same diameter the only change on this page that adds hours without touching the pool, the throw or the wall. It is also the one lever where carrying your measured rate across is defensible, because the wick is seeing the same diameter and the same wax — all that changed is how long the supply lasts.
Grams, not millilitres
Several CSI jars state capacity in millilitres rather than grams — the matte and frosted 200 ml family, for example, while the Black Matte Glass Jar page gives "fill weight of 200 ml" and no hot-pour ceiling. Millilitres are volume; soy wax is not water. Weigh one filled jar and use that number in every hours calculation. Where a page does state a hot-pour ceiling — the 150 gram family and the Apothecary jar both say "safe for hot pour up to 85°C" — and your wax states a higher pour band, the lower figure governs. CSI 468 states a 58–60°C pour, so it is comfortably inside either ceiling.What to buy for the retest
Three lines: the wicks to bracket with, a narrower jar to prove the diameter point, and a wax whose page publishes enough numbers to hold the rest of the test still.
1
The whole cotton ladder · two rungs, flat-priced
Eco Candle Wicks | Eco Wicks for Candle Making
The honest thing to know before you order: this page states no diameter at all. C1 and C2 exist only as Shopify variant names — Thin and Thick — and the description's guidance is that the wicks "pair perfectly with soy wax, beeswax, and other eco-friendly waxes". So there is no ladder to step down, and no published figure that tells you which size suits a 6.6 cm jar. What you do get is a flat price at every pack from 10 to 1,000 pieces, which means a bracket costs the same per wick as production. CSI buyer Ashwini reports "Quality wick, works very well"; the sizing is still yours to test. Note the C2 10-pack is currently sold out, so twenty is the smallest C2 buy.
| Size | Price | Per piece |
|---|---|---|
| Thin (C1) / 10 Wicks | ₹59 | ₹5.90 |
| Thick (C2) / 10 Wicks (sold out) | ₹94.40 | ₹9.44 |
| Thin (C1) / 20 Wicks | ₹118 | ₹5.90 |
| Thick (C2) / 20 Wicks | ₹188.80 | ₹9.44 |
| Thin (C1) / 50 Wicks | ₹295 | ₹5.90 |
| Thick (C2) / 50 Wicks | ₹472 | ₹9.44 |
| Thin (C1) / 100 Wicks | ₹590 | ₹5.90 |
| Thick (C2) / 100 Wicks | ₹944 | ₹9.44 |
| Thin (C1) / 500 Wicks | ₹2,950 | ₹5.90 |
| Thick (C2) / 500 Wicks | ₹4,720 | ₹9.44 |
| Thin (C1) / 1000 Wicks | ₹5,900 | ₹5.90 |
| Thick (C2) / 1000 Wicks | ₹9,440 | ₹9.44 |
₹5.90 (C1) and ₹9.44 (C2) per wick at every listed pack · ₹3.54 to change a candle's whole burn profile Buy Eco Candle Wicks
2
The diameter lever · stated 6 cm
Amber Shiny Glass Jar with Black Lid
The cheapest way to test whether your wall is a wick problem or a diameter problem. This page states 120 gm capacity, 6 cm diameter and 6.5 cm height — about 28 mm of internal radius once you allow for the glass, against 33 mm in the 7 cm family. Fit the same C1 you are already using and measure the wall again: in the worked example it fell from 11 mm to about 2 mm, with the pool covering 86% of the jar's surface instead of 44%. Expect the burn rate to shift too, so re-measure rather than carrying 3.4 g/h across. One page caveat worth knowing: the body text on this listing describes a black jar with a golden lid, a copy inconsistency rather than a spec.
| Size | Price | Per piece |
|---|---|---|
| Pack of 1 | ₹47.20 | ₹47.20 |
| Pack of 5 | ₹236 | ₹47.20 |
₹47.20 per jar at either listed pack · stated 6 cm diameter, 120 gm capacity Buy the Amber Shiny jar
3
Container wax · stated 13% load, stated low pour
Premium Coconut Soy Wax CSI 468 (Flakes)
Used in the bracket because its page publishes the three things a controlled test needs: a fragrance load of up to 13%, a melting point of 50–53°C and a pour temperature of 58–60°C — markedly lower than the soy waxes, and comfortably inside the 85°C hot-pour ceilings stated by the 150 gram jar family and the Apothecary jar. The page also describes glass adhesion as "excellent" without giving a measurement, so treat that as a qualitative statement, not a spec. It is one of the few CSI waxes whose listed per-kilo price steps down with volume: ₹650 at 1 kg falling to ₹637 at 5 kg and 10 kg. CSI buyer Arminder Kaur: "all the materials are high quality and ultimate fragrance range."
| Size | Price | Per kg | 120g candles @ 8% |
|---|---|---|---|
| 500 g | ₹325 | ₹650 | ≈4 |
| 1 kg | ₹650 | ₹650 | ≈9 |
| 5 kg | ₹3,185 | ₹637 | ≈45 |
| 10 kg | ₹6,370 | ₹637 | ≈90 |
₹89.70 of wax per 150 g candle · ₹71.76 per 120 g candle at 1 kg pricing Buy CSI 468
Once a candidate passes, the packs scale cleanly: Eco wicks flat to 1,000 pieces, Cotton Braided flat at ₹12 each to 1,000, Performance Wooden stepping ₹59 → ₹47.20 → ₹41.30, and CSI 468 stepping ₹650 → ₹637 per kg. For recurring volumes above the listed packs, bulk pricing, GST invoicing and MSDS or IFRA documentation are handled on WhatsApp.
Order in bulk on WhatsApp
The bracket CSI's range actually allows
This is the part most wick advice gets wrong, so here it is plainly. There is no graded ladder of cotton sizes to walk up or down. CSI's wick range is six listings, and only two of them say anything numeric about jar size.
All six CSI wick listings · what the page states, and what it costs
The complete set of candidates, and which direction each one moves you
| Wick | Stated size guidance | Listed packs | Per piece | Direction |
|---|---|---|---|---|
| Eco Candle Wicks · Thin (C1) | None stated | 10 → 1,000 | ₹5.90 flat | The bottom of the cotton range — nothing below it |
| Eco Candle Wicks · Thick (C2) | None stated | 20 → 1,000 (10-pack sold out) | ₹9.44 flat | One step up, and the only cotton step there is |
| Cotton Braided Wicks Ready Made | "Engineered for large-diameter candles exceeding 8 cm"; wick height 10.16 cm | 10 → 1,000 | ₹12 flat | Built for wider jars than the example |
| Performance Wooden Wicks (imported) | None stated; "one pack contains 10 wicks and wick tabs" | 10, 50, 100 | ₹59 → ₹47.20 → ₹41.30 | A different burn character, not a size step |
| Eco Candle Wicks Loose | "Designed specifically for 2 inch diameters" | 5 m ₹413 · 10 m ₹708 | Cut to your own height | The only listing with a numeric target diameter |
| Eco Braided Wicks | "The perfect solution for large diameter container jars" — no number | 5 m ₹472 · 10 m ₹826 | Cut to your own height | Wide-jar candidate, cut to length |
So the moves available to you are: up one cotton rung (C1 to C2), across to a different type (wooden, braided), or up in count (two wicks). Down from C1 there is nothing, which is worth knowing before you plan a programme around stepping down. If you are on C1 in a 6.6 cm jar with an 11 mm wall, your bracket is C2 single, wooden single, braided single and C1 double — four candidates, in duplicate, eight jars. If you are on C2 and still walling, cotton has run out and your candidates are count and type. The selection logic by diameter is in best wick for candle making by diameter, the type comparison in cotton wick vs wooden wick, and the eco range in best eco-friendly candle wicks.
The CSI principle
The wick does not supply the hours. The fill does. The wick only decides how many of them the customer is allowed to have.
Which is why the first question about a short candle is never "can I use a smaller wick" — it is "how many grams are in this jar, and can my wick reach all of them".
The six-jar trade-off test
Here is the test that answers the title in one fortnight. Six jars, two variables, one melt. Four of them bracket the wick in your current diameter; two of them test whether the diameter was the problem all along.
The layout
Six jars, and the question each one answers
| Jar | Vessel | Wick | Fill | Question it answers |
|---|---|---|---|---|
| 1 | Current, 33 mm radius | Eco C1 (control) | 150 g | What am I actually shipping? Wall, rate, throw, residue |
| 2 | Current, 33 mm radius | Eco C2 | 150 g | Does one cotton rung clear the wall, and at what cost in hours? |
| 3 | Current, 33 mm radius | Performance Wooden single | 150 g | Does a different wick type behave better at the same wall target? |
| 4 | Current, 33 mm radius | Eco C1 double | 150 g | Does count beat size — and does it stay safe? |
| 5 | Amber Shiny, 6 cm | Eco C1 (unchanged) | 120 g | Was my wall a diameter problem rather than a wick problem? |
| 6 | Shot Glass, 6 cm × 8 cm | Eco C1 (unchanged) | 130 g | Does depth at the same diameter buy hours cleanly? (+10 g = +2.9 h) |
Pour all six from one melt of CSI 468 at 8% so the wax, the oil and the load are identical, follow the page's stated 58–60°C pour, cure them together, and burn them on the same four-hour schedule in the same room. Then fill in the nine-field log. In the worked example, jars 5 and 6 are the interesting ones: the wall collapsed from 11 mm to about 2 mm with no change of wick at all, and jar 6 returned the hours that jar 2 had given up — because it added grams instead of restricting the flame.
Don't let "clear the wall" become "biggest wick that fits". Safety outranks every figure on this page. An oversized wick can be dangerous before the flame looks alarming: watch for soot on the glass, heavy mushrooming, a flame that will not settle in still air, and a jar you cannot comfortably hold. A candle showing any of those does not ship, whatever its hours and whatever its wall. Choose the smallest candidate that meets your wall line and passes a safety check — in the example, C2 at 3 mm rather than C1 double at 1 mm, which also keeps 3.8 hours. Further reading: candle flame too high: how to fix and why is my candle wick mushrooming.
One more honest note on the Shot Glass Jar. Its page states a 130 gram fill capacity, 8 cm height and 6 cm diameter at ₹288 for the listed pack — but the title says "Pack of 6" while the body text describes a pack of five, so count what arrives before you build a cost per jar on it. It is a good illustration of why the depth lever needs a scale: the page tells you the capacity, and only your own filled-jar weighing tells you the fill.
A thinner wick is a discount on fragrance paid for in wax you cannot reach.
— CandleMakingSuppliesIndia
Why trust this guide
CANDLEMAKINGSUPPLIESINDIA supplies raw materials, not finished candles. Two of the three levers on this page cost us money: a candle that clears its wall uses more of its own fill per hour, and a maker who fixes the diameter buys cheaper jars rather than more wax. We publish it because the alternative — a range of under-wicked candles with weak throw and wax welded to the glass — is how makers lose repeat customers and stop ordering.
Every price, pack and stated specification here is from live CSI stock in September 2026 and links to the product page, which is always authoritative. Wick diameters are quoted only where a page states one: Eco Candle Wicks Loose ("2 inch diameters") and Cotton Braided ("exceeding 8 cm", height 10.16 cm). The C1/C2 page states none, and we do not invent one. All walls, pool radii, burn rates, residues, hours and throw scores are a maker's own measurements shown to demonstrate the arithmetic — no CSI wax, wick or jar page publishes a burn time, a burn rate or hours per gram.
For help turning your jar's internal diameter into a candidate list, bulk pricing, GST invoicing, MSDS or IFRA documentation, message us on WhatsApp at +91 7397976926.
Frequently asked questions
How do I increase candle burn time without wicking down?
Add fuel or change the footprint. At a constant measured burn rate, hours are directly proportional to usable fill — in the example, 10 g more wax at 3.4 g per hour is 2.9 more hours, with no change to the pool, the throw or the wall. A deeper jar of the same diameter is the cleanest version of that move. The second lever is a narrower jar, where the same wick clears more of the surface. Only then look at the wick, and look for the smallest candidate that still clears your wall.
Why did my hot throw drop when I used a smaller wick?
Fragrance leaves the candle from the molten pool, and pool area goes with the square of its radius. A 22 mm pool in a 33 mm jar covers 44% of the available surface; a 30 mm pool covers 83%. That is geometry rather than a throw measurement — we are not publishing a percentage by which throw changes, because that depends on your oil, your load and your wax. But it is the mechanism, and it is why wicking down almost always costs throw.
Can I go one wick size down from Eco C1?
No — there is no rung below it. CSI lists two Eco cotton sizes, Thin (C1) at ₹5.90 and Thick (C2) at ₹9.44, and the page states no diameter for either. The other options are Cotton Braided at ₹12 (its page targets jars "exceeding 8 cm"), Performance Wooden Wicks from ₹41.30 to ₹59, and two wick rolls you cut yourself. If you need less wick power than C1, the real answer is a narrower jar, not a thinner wick.
How many millimetres of unmelted wall is acceptable?
Set the figure yourself from your own bracket rather than adopting one. Burn four or five candidates in the jar you actually sell, measure the wall as internal radius minus pool radius at the end of a fixed session, and write down the number you are prepared to put in a specification and defend to a customer. In the worked table a maker's candidates ranged from 11 mm down to 1 mm, with the hours falling by roughly 0.8 to 1.0 per millimetre cleared. The line matters more than the number.
Will a different wax give me more burn time?
Possibly, and the only way to find out is a paired test: same jar, same wick, same oil, same load, same fill weight, one wax changed. We will not rank waxes by burn rate, because no CSI wax page publishes one and a ranking we invented would be worthless to you. What the pages do publish is the formulation data a controlled test needs — CSI 468 states up to 13% load, 50–53°C melt and 58–60°C pour; Luxury Soy Wax Chunks state 8–13% with 10% recommended. Treat a wax change as a formulation change and retest full-life.
Does a deeper jar always mean more hours?
More grams at the same diameter means more hours at the same burn rate — and the catch is in that clause. Burn rate is not constant all the way down a jar: a wick that performs at the top can weaken further down, so a very deep vessel can give back some of what the extra fill promised. The fix is to measure the top, middle and bottom thirds separately rather than trusting one average, and to accept the depth gain only if the bottom third still clears your wall.
Get the hours from the fill, not from the flame
Measure the wall in millimetres, price the trade in hours per millimetre, then add grams instead of taking away wick.
Eco Candle Wicks C1 ₹5.90 and C2 ₹9.44 each, flat to 1,000 pieces · Cotton Braided Wicks Ready Made ₹12 each at every pack · Performance Wooden Wicks ₹59 falling to ₹41.30 · Premium Coconut Soy CSI 468 ₹650/kg falling to ₹637 at 5 kg, stated up to 13% load and a 58–60°C pour · Amber Shiny Glass Jar with Black Lid ₹47.20 each, stated 6 cm diameter · Shot Glass Jar ₹288 for the listed pack, stated 130 g fill. Bulk pricing, GST invoicing and documentation on WhatsApp.
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- My candle burns a very long time but leaves a thick wall of wax — have I under-wicked it?
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- How to choose the right wick for your candle
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- How to keep the wick straight when making candles
Editorial standards & sources
About this guide: Written by the CANDLEMAKINGSUPPLIESINDIA team. Product recommendations reflect the CSI range; the wall measurement, the hours-per-millimetre arithmetic and the four levers apply to any supplier's materials.Customer reviews: The five reviews at the top of this page are genuine, published Judge.me reviews left by CSI customers on their product pages. Names, star ratings, dates and products are as recorded by Judge.me; wording is unedited.
Figures verified September 2026: Eco Candle Wicks Thin (C1) ₹59/10, ₹118/20, ₹295/50, ₹590/100, ₹2,950/500, ₹5,900/1,000 — ₹5.90 each at every pack; Thick (C2) ₹188.80/20, ₹472/50, ₹944/100, ₹4,720/500, ₹9,440/1,000 — ₹9.44 each, 10-pack currently sold out; the page states no wick diameter and recommends the wicks for soy, beeswax and other eco-friendly waxes. Cotton Braided Wicks Ready Made ₹120/10, ₹600/50, ₹1,200/100, ₹6,000/500, ₹12,000/1,000 — ₹12 each at every pack; page states "engineered for large-diameter candles exceeding 8 cm" and a wick height of 10.16 cm. Performance Wooden Wicks (imported) ₹590/10, ₹2,360/50, ₹4,130/100 — ₹59, ₹47.20 and ₹41.30 each; page states one pack contains 10 wicks and wick tabs. Eco Candle Wicks Loose ₹413 / 5 m, ₹708 / 10 m; page states "designed specifically for 2 inch diameters". Eco Braided Wicks ₹472 / 5 m, ₹826 / 10 m; no numeric diameter stated. Premium Coconut Soy Wax CSI 468 ₹325 / 500 g, ₹650 / 1 kg, ₹3,185 / 5 kg (₹637/kg), ₹6,370 / 10 kg (₹637/kg); page states fragrance load up to 13%, melting point 50–53°C, pour temperature 58–60°C, and describes glass adhesion qualitatively as "excellent" with no measurement. Woody Oud Fragrance Oil 15 gm ₹93.22, 50 gm ₹271.40, 100 gm ₹453.12, 500 gm ₹2,265.60 (₹4.5312/g), 1 kg ₹4,531.20. Amber Shiny Glass Jar with Black Lid ₹47.20 / pack of 1, ₹236 / pack of 5 — ₹47.20 each; page states 120 gm capacity, 6 cm diameter, 6.5 cm height, and its body text inconsistently describes a black jar with a golden lid. Shot Glass Jar ₹288 for the listed pack; page states 130 gram fill capacity, height 8 cm, diameter 6 cm — title says "Pack of 6" while the body text says five, so verify the count before costing per jar. Black Matte Glass Jar ₹354 / pack of 5, ₹708 / pack of 10; page states a fill weight of 200 ml (a volume, not a weight) and no hot-pour ceiling. Clear Glass Jar with Golden Lid (150 gram) ₹944 / 10, ₹1,888 / 20; page states 150 g fill, 8 cm height, 7 cm outer diameter, approximately 6.5 cm base and safe for hot pour up to 85°C. Apothecary Glass Candle Jar with Dome Lid 500 gm ₹212.40, 700 gm ₹250; page states approximately 10 cm diameter and safe for hot-pour up to 85°C. Luxury Soy Wax Chunks ₹599 / 1 kg; stated load 8–13% of total wax weight with 10% recommended. Premium Candle Wicking Needle ₹472; Bamboo Wick Holder ₹118 for a set of 5. Assumptions stated: fragrance load is a share of the finished candle, so a 150 g candle at 8% is 138 g wax + 12 g oil and a 120 g candle at 8% is 110.4 g wax + 9.6 g oil (the Luxury Soy Wax Chunks page phrases its range as a share of total wax weight; this series keeps the finished-candle convention); internal radius is taken as the measured inside of the jar at the wax line, not the stated outer diameter; pool area share = (pool radius ÷ internal radius)²; residue is assumed to carry the candle's own 92/8 wax-to-oil split; allow 3–5% wax loss for spills and top-ups as a planning allowance. All walls, pool radii, burn rates, residues, usable hours, throw scores and hours-per-millimetre figures are a maker's own measurements used to demonstrate the arithmetic — no CSI wax, wick or jar page publishes a burn time, a burn rate or hours per gram, and none is estimated here. Stated loads are wax formulation limits, not regulatory limits. Prices and availability change — the linked product pages are always authoritative.