My Candle Takes More Than Four Hours to Develop a Reasonable Melt Pool — Is the Wick Too Small?
शेयर करना
Eco wicks from ₹5.90 each Soy wax from ₹450 / kg Stocked in India · ships nationwide
CSI diagnostic guides · burn time
Stop asking whether the pool is full. Ask how many minutes it takes to travel one millimetre — and whether it is still travelling.
★★★★★
"Cute jars, I like it."
AshwiniSep 2025
White Matte Votive Jar
★★★★★
"Quality is good with good fragrance"
Avanthi CheeliVerified buyer · Nov 2025
Citrus Lemon Fragrance Oil
★★★★★
"This stirring stick is quite helpful In mixing the colours and stirring the wax …I definitely recommend this product…"
Lalitha JaganAug 2024
Bamboo Stirring Sticks
★★★★★
"Been using this for the past 3 years, works perfectly well."
Niharika SOct 2024
Hot Air Gun
★★★★★
"Highly recommended for candle making. Convenient to use."
Mohabatti Ki DukaanVerified buyer · Jan 2026
Mini Electric Wax Melter
★★★★★
"Cute jars, I like it."
AshwiniSep 2025
White Matte Votive Jar
★★★★★
"Quality is good with good fragrance"
Avanthi CheeliVerified buyer · Nov 2025
Citrus Lemon Fragrance Oil
★★★★★
"This stirring stick is quite helpful In mixing the colours and stirring the wax …I definitely recommend this product…"
Lalitha JaganAug 2024
Bamboo Stirring Sticks
★★★★★
"Been using this for the past 3 years, works perfectly well."
Niharika SOct 2024
Hot Air Gun
★★★★★
"Highly recommended for candle making. Convenient to use."
Mohabatti Ki DukaanVerified buyer · Jan 2026
Mini Electric Wax Melter
Reviews collected and published through Judge.me on candlemakingsuppliesindia.store. Wording is unedited.
✓ Pool growth measured, not judged by eye ✓ No burn hours claimed for any CSI product ✓ Bulk pricing & GST invoicing on WhatsApp
Candle Business Guides · Burn Time × Melt Pool
Four hours on its own proves nothing — soy pools widen across sessions and a full pool on burn one is not the target. What settles it is the rate the pool spreads at, and whether that rate is still moving when it runs out of room.
7 h 20 min
continuous burning needed to carry a pool across a 33 mm internal radius at a measured session-one spread of 13.3 minutes per millimetre — against the three to four hours a customer actually burns · one maker's own log
Quick answers — read this first
Is four hours to a full pool too slow? Not by itself. Soy candles commonly widen their pool over several sessions, and chasing a full pool on burn one is one of the standard ways makers end up over-wicked. What matters is the spread rate and whether it is converging short of the glass.What should I measure? Pool radius at the end of each fixed session, with a steel rule, before the surface skins. Then minutes per millimetre: 240 minutes ÷ the millimetres the radius gained. In the log below that is 13.3, 48, 68.6, 160 and 480 min/mm across five sessions.
What is the decision rule? Two tests. The projection test: at session-one rate, how long would a continuous burn need to reach the wall? Here 440 minutes. The convergence test: if the per-session gain falls below 1 mm while a wall above your line remains, the pool has stopped short and the wick cannot finish that diameter.
So is my wick too small? On those two tests, in that jar — yes. But the cheaper fix is often the jar: the same wick that converges 4.25 mm short of a 33 mm radius may reach the wall in a stated 6 cm jar. Measure before you buy either.
The short answer
A pool is a distance, so measure it as one: internal radius minus pool radius gives you millimetres; millimetres per session gives you a rate; and a rate can be projected, compared and specified. "Reasonable" cannot.
Judge on four sessions, never on one: session one in soy is always the slowest and the smallest. A single short burn will convict a perfectly good wick and tempt you into a dangerous one.
Then separate wick from vessel: fit the same wick in a narrower jar before you fit a bigger wick in the same jar. Only two CSI wick pages state any diameter at all, so the jar is the variable with published numbers.
In this guide
Bar length is cumulative pool radius after each four-hour session; the dashed line is the glass. The shape, not the first reading, is the diagnosis. Every figure is one maker's own measurement with a steel rule — substitute yours.
The candidate bracket starts here
Eco Candle Wicks · C1 ₹5.90 · C2 ₹9.44
Narrowest stated diameter in stock
Amber Shiny Glass Jar · 6 cm · ₹47.20
Tell us the internal radius you measured
Ask on WhatsApp
Straight answer
My melt pool takes more than four hours to form — does that mean the wick is too small?
Four hours on its own is not evidence. Soy candles widen their pool over several sessions, and a maker who insists on an edge-to-edge pool during the first burn is on the fastest route to an over-wicked candle. What is evidence is the spread rate and its shape. Measure pool radius with a steel rule at the end of every fixed session and convert it to minutes per millimetre. In the worked log — a 150 g candle of Natural Soy Pearl Wax in a jar measuring 33 mm internal radius, on Eco C1 — session one reached 18 mm in 240 minutes, or 13.3 min/mm. Project that across the full 33 mm and you need 440 minutes — 7 hours 20 minutes of continuous burning, which no customer is going to give you. Then watch the shape: the per-session gains ran 18, 5, 3.5, 1.5 and 0.5 mm, so the rate degraded to 480 min/mm and the curve converges at roughly 28.75 mm — a permanent wall of about 4.25 mm. That fails both tests, so yes, the wick cannot finish this diameter. A candidate that can looks different: 26 mm, then 31 mm, then 33 mm — the gains still shrink, but they shrink at the glass. And before you buy a bigger wick, fit the same one in a narrower jar: the stated 6 cm Amber Shiny jar asks the flame to cross about 5 mm less.
One line: measure minutes per millimetre over four sessions — if the gains converge before the glass, the wick is too small for that diameter; if they converge at the glass, it is right.
The whole test needs a steel rule, a notebook and four evenings. The only purchases are the candidates: Eco C1 ₹59 for ten, C2 ₹188.80 for twenty, cotton braided ₹120 for ten, and a narrower jar at ₹47.20 to rule the vessel in or out.
Shop candle wicks
Measure the pool, don't judge it
"A reasonable melt pool" is a feeling. A pool radius is a number, and only numbers survive a fortnight in a notebook.
Almost every slow-pool investigation goes wrong at the same point: the maker records an impression instead of a measurement, and three weeks later cannot compare session four with session one. The fix costs nothing. You need the jar's internal radius once, and the pool's radius after every session.
1
Measure the jar's internal diameter at the wax line, once, and halve itNot the stated outer diameter and not the lid. Lay a steel rule across the inside of the empty jar at the height the wax will sit. In the worked log that is 6.6 cm internal, giving a radius of 33 mm. Product pages quote outer dimensions — the 150 gram jar states a 7 cm outer diameter and an approximate 6.5 cm base — and glass has thickness.
2
Fix the session length and the trim length, and never vary themFour hours is the sensible session because it is near real use. Trim to the same length before every session. Both of these change pool growth, so if they wander your curve is meaningless. The same jar, the same room, the same ambient temperature, lid off, no draught.
3
Measure the pool the moment you extinguish it, before it skinsBlow it out and immediately lay the rule across the widest part of the liquid. Thirty seconds later the edge is a guess. Record the diameter and halve it; in session one, 36 mm across, so an 18 mm radius. Also note the pool's depth with a cocktail stick — a deep narrow pool and a shallow wide one are different problems.
4
Convert to minutes per millimetre of gainSession minutes ÷ millimetres the radius gained this session. Session one: 240 ÷ 18 = 13.3 min/mm. Session two gained 5 mm: 240 ÷ 5 = 48 min/mm. This single conversion is what makes sessions comparable to each other and to a candidate wick, and it is why the unit is per millimetre rather than per hour.
5
Keep going for at least four sessions, then plot the gainsFour numbers is the minimum that shows a shape. Write them in a column and look at them: 18, 5, 3.5, 1.5. A column that is still giving you whole millimetres is a candle still developing. A column that has dropped under a millimetre with wall remaining has converged. Weigh the candle cold between sessions too, so grams per hour comes free with the same work.
6
Estimate where the curve landsIf the last two gains are 1.5 mm and 0.5 mm, the gains are falling to roughly a third each session, so the remaining travel is about 0.5 × ⅓ ÷ (1 − ⅓) = 0.25 mm. Add it: 28.75 mm, against 33 mm to the glass. That is an estimate from your own numbers, not a prediction we can make for you — but it is enough to stop you burning three more candles to confirm the obvious.
One rule, nine fields, one line per session
Internal radius · pool radius · gain this session · minutes per millimetre · wall remaining · grams lost cold · flame notes · trim length · jar safe to hold. Nine columns, written before you light anything so you cannot invent the headings after the fact. Every table on this page comes out of those nine fields, and so does the hot throw score sheet if you add two throw columns.The growth curve across five sessions
Here is the full log, with the conversion done. Read the gain column first, then the minutes per millimetre, then the wall. The pool area column is there to make a geometric point that trips up a lot of makers: a pool at 28.5 mm of a 33 mm radius looks close, and covers under three quarters of the surface.
Pool growth log · 150 g fill · 33 mm internal radius · Eco C1
Five four-hour sessions, and the rate at which the pool stopped travelling
| Session | Pool radius | Gain | Minutes per mm | Wall remaining | Pool area share | Reading |
|---|---|---|---|---|---|---|
| 1 | 18 mm | +18 mm | 13.3 | 15 mm | 30% | Normal for a first soy burn — judge nothing yet |
| 2 | 23 mm | +5 mm | 48 | 10 mm | 49% | Still developing properly |
| 3 | 26.5 mm | +3.5 mm | 68.6 | 6.5 mm | 65% | Slowing, but a real gain |
| 4 | 28 mm | +1.5 mm | 160 | 5 mm | 72% | Below the convergence threshold — warning |
| 5 | 28.5 mm | +0.5 mm | 480 | 4.5 mm | 75% | Effectively stopped with a measurable wall |
| Estimated limit | ≈28.75 mm | +0.25 mm | — | ≈4.25 mm | 76% | The wall is permanent on this wick in this jar |
Worked out above: minutes per mm = 240 session minutes ÷ the gain in millimetres. Wall remaining = 33 mm − pool radius. Pool area share = (pool radius ÷ 33)², rounded. Estimated limit = last radius + a geometric tail on the last two gains (0.5 × ⅓ ÷ ⅔ = 0.25 mm). Projection at session-one rate = 33 mm × 13.33 min/mm = 440 minutes = 7 h 20 min. Candidate wick for comparison: 26 mm, 31 mm, 33 mm across three sessions — 9.2 min/mm in session one, reaching the glass cumulatively in session three. Every figure is one maker's own measurement; no CSI wax, wick or jar page publishes a melt-pool rate, a burn rate or a burn time.
Compare the two shapes directly, because this is the whole diagnostic. A healthy curve also slows down — gains of 26, then 5, then 2 mm — but it runs out of gains at the same moment it runs out of jar. A failing curve runs out of gains first, and the distance between where it stops and the glass is the wall your customer will be scraping out. Nothing about the first session distinguishes them: 18 mm and 26 mm are both plausible first pools, and plenty of good candles start slow.
The mistake: concluding after one burn. A single four-hour session is the least informative measurement in candle development and the one makers rely on most, usually because they want an answer that evening. Session one is the slowest session a soy candle will ever have: the wax is cold, the pool has no history, and the wick is still priming. If you judge there, you will reject wicks that were fine and buy wicks that are dangerous. Four sessions is the minimum, five is better, and the gains column is the output. The related tunnelling diagnosis is in why does my candle tunnel even with the correct wick.
Two tests that settle it
Out of that log come two decision rules. Neither needs a figure from a product page, which is just as well, because no CSI page publishes one. Both use thresholds you set and write down before testing.
The projection test and the convergence test
What each one asks, and what a pass and a fail look like
| Test | The question | The arithmetic | The log above | A candidate that passes |
|---|---|---|---|---|
| Projection | At session-one spread rate, how long would one continuous burn need to reach the glass? | Internal radius × session-one min/mm | 33 × 13.33 = 440 min (7 h 20 min) | 33 × 9.2 = 305 min — still longer than a session, which is normal |
| Convergence | Have the per-session gains fallen below your resolution while a wall above your line remains? | Watch the gain column; estimate the limit from the last two gains | Gains 1.5 then 0.5 mm, limit ≈28.75 mm, wall ≈4.25 mm — fail | Gains shrink to zero at 33 mm — pass |
Why two tests rather than one? Because they catch different faults. Projection catches a candle that is only ever going to work for a customer who burns it for seven hours at a stretch — a candle whose performance depends on behaviour you cannot ask for. Convergence catches a candle that will never get there at all, however long anybody burns it. The second is the harder failure and the easier one to read, because the gains column makes it obvious once you are writing it down.
The projection test needs one honest caveat. A projection at session-one rate is a comparison device, not a prediction: pool growth is not linear, and in practice the pool widens faster than that in later sessions because the wax it is advancing into has already been warmed. Use it to rank candidates against each other and against a realistic session length. Do not quote it as a burn figure.
Set the convergence threshold at your measuring resolution
If you are reading a steel rule to the nearest half millimetre on a liquid edge, a "gain" of 0.5 mm is within your own noise. So set the convergence threshold at 1 mm per session and treat anything under it as zero. That is not a standard, it is a sensible floor for the tool you are using — and it is the sort of line that belongs in your own specification rather than borrowed from a blog. Write it down before the test, not after.Why burn one is the wrong place to judge
It is worth labouring this, because the advice circulating most widely — "your first burn must reach the glass" — is also the advice that produces the most over-wicked candles. If you select a wick on the strength of session one, you are selecting for the hardest session a candle has, and the wick that wins will be larger than the candle needs for its remaining life.
What session one actually tells you
Four things that are different in the first burn, and what they do to the pool
| Condition in session one | Effect on pool growth | What it means for your decision |
|---|---|---|
| The wax has no heat history | Every millimetre of advance has to be warmed from room temperature | Session one is the slowest session; expect it |
| The wick is priming | Flame and draw take time to settle | Record the first ten minutes separately if you like, but do not weight them |
| The surface is flat and full | No pool geometry yet to concentrate heat near the wick | Later sessions genuinely have an advantage; that is not cheating |
| Cure may be incomplete | Throw and sometimes burn behaviour are still moving | Burn-test on cured candles — 14 to 21 days is standard practice for soy containers |
Don't fix a slow first burn by buying the biggest wick that produces one. Chasing an edge-to-edge pool on burn one is a recognised route to over-wicking, and over-wicking is a safety matter rather than a performance preference. Watch for soot on the glass, heavy mushrooming, a flame that will not settle in still air, and a jar too hot to hold after a session — a candle with any of those does not ship, whatever its pool looks like. Select on the session-four gain, not the session-one radius. Further reading: candle flame too high: how to fix, why is my candle wick mushrooming and why your candle needs a 14-day cure.
The diameter you chose is half the answer
A wick is not big or small in the abstract — it is big or small for a distance. Before you escalate, check whether the distance is the thing you should change. This is the one side of the equation where product pages actually publish numbers, so it is the cheaper side to work with.
CSI vessels that state a diameter · in stock, September 2026
How far the flame has to travel, and what the jar costs
| Vessel | Stated diameter | Stated capacity | Approx. distance to the glass | Price per jar |
|---|---|---|---|---|
| Amber Shiny Glass Jar with Black Lid | 6 cm (also 6.5 cm height) | 120 gm | About 28 mm of internal radius | ₹47.20 at either pack |
| Shot Glass Jar | 6 cm (8 cm height) | 130 gram | About 28 mm — same reach, more depth | ₹288 for the listed pack |
| Clear Glass Jar with Golden Lid (150 gram) | 7 cm outer rim, 6.5 cm base | 150 g fill | Around 33 mm — the jar in the worked log | ₹94.40 at either pack |
| Apothecary Glass Candle Jar with Dome Lid | Approx. 10 cm rim and base | 500 g and 700 g | Around 48 mm — a single-wick problem before it is a wick problem | ₹212.40 and ₹250 |
| Black Matte Glass Jar and the matte family | Not stated | "Fill weight of 200 ml" — a volume | Measure it yourself; weigh a filled jar for the fill | ₹70.80 at either pack |
Two things to take from that table. First, the narrowest in-stock CSI vessels with a stated diameter are the 6 cm ones, which ask the flame to cross roughly 5 mm less than the 7 cm family — and 5 mm is more than the 4.25 mm wall the worked log converged on. Moving the vessel might have solved it without touching the wick. Second, the wick side of the equation barely publishes anything: of six CSI wick listings, only Eco Candle Wicks Loose ("designed specifically for 2 inch diameters") and Cotton Braided Wicks Ready Made ("engineered for large-diameter candles exceeding 8 cm", wick height 10.16 cm) state anything numeric. The C1/C2 page states no diameter at all.
The CSI principle
A wick is never too small on its own. It is too small for a distance you chose.
Which is why the first thing to measure is the jar, the second is the gain per session, and the wick order comes third — after you know whether you are short on flame or long on glass.
What to buy to run this properly
A pool-growth test needs identical jars, a wax whose behaviour you can hold still, and the one wick candidate above where you are. Each card shows every listed pack and the per-unit maths.
1
The control and the first candidate
Eco Candle Wicks · Thin (C1)
The wick in the worked log, and the one the whole range is built around. Be clear about what the page does and does not say: it recommends the wicks for soy, beeswax and other eco-friendly waxes, and it states no diameter — "C1" and "Thin" are Shopify variant names, not published specifications. So C1 is where most makers start and it is not a size you can match to a jar from a chart. What you get instead is a flat ₹5.90 a wick from ten pieces to a thousand, which means a five-session growth test costs the same per wick as production. CSI buyer Ashwini reports "Quality wick, works very well" — the sizing judgement is still yours to make with a steel rule.
| Size | Price | Per piece |
|---|---|---|
| Thin (C1) / 10 Wicks | ₹59 | ₹5.90 |
| Thin (C1) / 20 Wicks | ₹118 | ₹5.90 |
| Thin (C1) / 50 Wicks | ₹295 | ₹5.90 |
| Thin (C1) / 100 Wicks | ₹590 | ₹5.90 |
| Thin (C1) / 500 Wicks | ₹2,950 | ₹5.90 |
| Thin (C1) / 1000 Wicks | ₹5,900 | ₹5.90 |
₹5.90 per wick at every listed pack · the cheapest line in the candle and the one that decides the pool Buy Eco Candle Wicks
2
Identical test vessels · capacity stated in millilitres
Black Matte Glass Jar
A pool-growth curve is only comparable between jars that are genuinely the same, which is the argument for buying a pack rather than assembling a set. Two honest cautions on this listing: the page states a fill weight of 200 ml — millilitres are volume, and soy wax is not water, so weigh one filled jar before you build any arithmetic on it — and it states no diameter and no hot-pour ceiling, so measure the inside yourself at the wax line and stay inside your wax's own stated pour band. Its body text also refers to a "Black Matte Glass Jar" in a family where several listings have swapped descriptions, so trust the dimensions you take, not the prose. CSI buyer Tina Lynette Lazaro Moganti: "Very good."
| Size | Price | Per piece |
|---|---|---|
| Pack of 5 | ₹354 | ₹70.80 |
| Pack of 10 | ₹708 | ₹70.80 |
₹70.80 per jar at either listed pack · buy enough for a candidate bracket in duplicate Buy the Black Matte Jar
3
Container wax · no stated load, so test carefully
Natural Soy Pearl Wax
Used in the worked log, and included here with a plain warning rather than a sales line: this page states no maximum fragrance load, no melting point and no pour temperature — only that it suits "a variety of container types and candle designs". A wax with no published numbers is not a worse wax, but it is a wax that earns its place only after a burn test, so hold your load at 8% and log every temperature you actually used. Where it is genuinely interesting is the price ladder: it is one of the few CSI waxes whose per-kilo price steps down with volume, from ₹450 at 1 kg to ₹424.80 at 5 kg, 10 kg and 50 kg — and the 50 kg listing is unusual in the range. A 150 g candle at 8% carries 138 g of it.
| Size | Price | Per kg | 150g candles @ 8% |
|---|---|---|---|
| 1 kg | ₹450 | ₹450 | ≈7 |
| 5 kg | ₹2,124 | ₹424.80 | ≈36 |
| 10 kg | ₹4,248 | ₹424.80 | ≈72 |
| 50 kg | ₹21,240 | ₹424.80 | ≈362 |
₹62.10 of wax per 150 g candle at 1 kg pricing · ₹58.62 at the 5 kg step Buy Natural Soy Pearl Wax
Once a candidate passes both tests, the packs scale cleanly: Eco wicks flat to 1,000 pieces, Cotton Braided flat at ₹12 each to 1,000, Performance Wooden stepping ₹59 → ₹41.30, and Natural Soy Pearl Wax stepping ₹450 → ₹424.80 per kg with a 50 kg listing. 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, and what the retest has to cover
If both tests fail, you have two routes and it is worth running them in parallel rather than sequentially, because each is one jar.
Four jars, one melt, two questions
The minimum experiment that tells you whether to change the wick or the vessel
| Jar | Vessel | Wick | What a pass looks like | Added cost |
|---|---|---|---|---|
| 1 · control | Current, 33 mm radius | Eco C1 | Nothing — this is the failing baseline you already have | — |
| 2 · wick route | Current, 33 mm radius | Eco C2 | Gains converge at 33 mm; no soot, settled flame, jar safe to hold | ₹3.54 of wick |
| 3 · vessel route | Amber Shiny, stated 6 cm | Eco C1, unchanged | Same wick converges at about 28 mm — which is the wall in this jar | ₹47.20 of jar |
| 4 · kind route | Current, 33 mm radius | Cotton braided single | A different growth shape worth knowing, though its page targets jars over 8 cm | ₹12 of wick |
Pour all four from one melt, so the wax, the oil, the load and the cure are identical, and measure the growth curve for each across five sessions. In the worked example jars 2 and 3 both pass, which is the useful outcome: it tells you the problem was the relationship between the wick and the diameter rather than a defect in either. Then you choose on everything else — the 6 cm jar is a 120 g candle rather than a 150 g one, so it is a different product at a different price, while the C2 route keeps the product and changes the burn.
Whichever route you take, treat it as a formulation change. That means the burn-time figure, the residue against your own line, the throw score at 30 and 120 minutes, and the safety checks all get measured again from scratch on more than one unit. A wick change inherits nothing from the old recipe. The selection logic by diameter is covered in best wick for candle making by diameter, the eco range in best eco-friendly candle wicks, and the general wick decision in how to choose the right wick for your candle.
Measure the gain, not the glow. A pool that is still moving is a candle still working out what it is.
— CandleMakingSuppliesIndia
Why trust this guide
CANDLEMAKINGSUPPLIESINDIA supplies raw materials, not finished candles. The commercially useful page here would tell you that a slow pool means a bigger wick and point at the dearest one in the range. We have instead told you to burn four sessions before buying anything, and to consider a ₹47.20 jar ahead of a wick change — because selling you a wick that masks a geometry mismatch produces a candle that fails again the moment anything else moves.
Every price, pack and stated specification on this page comes from live CSI stock in September 2026 and links to the product page, which is always authoritative. Vessel diameters are quoted only where a page states them, and wick diameters only for the two listings that give one — Eco Candle Wicks Loose ("2 inch diameters") and Cotton Braided ("exceeding 8 cm", height 10.16 cm). All pool radii, gains, minutes per millimetre, convergence estimates and projections on this page are a maker's own measurements used to demonstrate the arithmetic — no CSI wax, wick or jar page publishes a melt-pool rate, a melt-pool depth, a burn rate or a burn time, and none is estimated here.
For help turning a measured internal radius into a candidate list, bulk pricing, GST invoicing, MSDS or IFRA documentation, message us on WhatsApp at +91 7397976926.
Frequently asked questions
How long should a candle take to reach a full melt pool?
There is no figure we can give you, and any we invented would be worse than useless in a specification. What is measurable is the rate: pool radius gained per session, converted to minutes per millimetre. Judge it on four or five sessions, not one — soy pools widen cumulatively, and session one is always the slowest. The question to answer is not "how long" but "are the gains still arriving, and will they reach the glass before they stop?"
Should my candle reach the glass on the first burn?
No, and insisting on it is one of the standard routes to an over-wicked candle. The first burn has no heat history, a priming wick and a flat surface with no pool geometry, so it is the hardest session the candle will ever have. A wick selected to win session one will be larger than the candle needs for the rest of its life — and over-wicking shows up as soot, mushrooming, an unsettled flame and a jar too hot to hold, which are safety matters rather than preferences. Select on the session-four gain.
How do I measure a melt pool properly?
Extinguish the candle and immediately lay a steel rule across the widest part of the liquid, before it skins over; halve the diameter for the radius. Take the jar's internal diameter at the wax line once, with the jar empty, and halve that too — stated outer diameters include the glass. Record pool depth with a cocktail stick as well, because a deep narrow pool and a shallow wide one are different faults. Then convert: session minutes ÷ millimetres gained.
My pool stopped growing — what does that mean?
That the wick has found its limit in that diameter, and whatever wall remains is permanent. In the worked log the gains ran 18, 5, 3.5, 1.5 and 0.5 mm, converging at roughly 28.75 mm against 33 mm to the glass — a 4.25 mm wall that no amount of further burning will remove. The response is a candidate bracket, or a narrower vessel. What it is not is a reason to tell customers to burn longer: longer sessions help a pool that is still moving and do nothing for one that has converged.
Which CSI wick should I try if C1 is too small?
Eco C2 (Thick) at ₹9.44 is the only cotton step above C1, and the page states no diameter for either size. Above that you change count or kind: two C1 at ₹11.80 a candle, Cotton Braided at ₹12 (its page targets jars "exceeding 8 cm"), or Performance Wooden Wicks at ₹59 falling to ₹41.30. Before any of them, try the same C1 in a stated 6 cm jar at ₹47.20 — it asks the flame to cross about 5 mm less, which is more than the wall in the example.
Does jar diameter matter more than wick size?
They are the same question from two ends: a wick is too small for a distance. The practical difference is that jar pages publish diameters and wick pages mostly do not — among CSI's in-stock vessels, the Amber Shiny and Shot Glass jars state 6 cm, the 150 gram family states a 7 cm outer rim and 6.5 cm base, and the Apothecary jar states about 10 cm, while only two of six wick listings give any numeric size. So the vessel is the side you can reason about before testing. Measure the inside of yours at the wax line and start there.
Four sessions, nine columns, one decision
Measure minutes per millimetre, watch the gains converge, and find out whether you are short on flame or long on glass.
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, page targets jars over 8 cm · Performance Wooden Wicks ₹59 falling to ₹41.30 · Natural Soy Pearl Wax ₹450/kg falling to ₹424.80 at 5 kg, 10 kg and 50 kg · Black Matte Glass Jar ₹70.80 each · Amber Shiny Glass Jar with Black Lid ₹47.20 each, stated 6 cm diameter · Clear Glass Jar with Golden Lid (150 gram) ₹94.40 each. Bulk pricing, GST invoicing and documentation on WhatsApp.
Shop candle wicks Ask on WhatsApp
Continue the read
- My candle flame is tiny and consumption is extremely slow — should I test a larger wick?
- My candle burns a very long time but leaves a thick wall of wax — have I under-wicked it?
- I wicked down for burn time and lost hot throw — how do I add life without under-wicking?
- Best wick for candle making: complete guide by diameter
- Candle tunnelling: causes, fixes and prevention
- How can I prevent my candles from tunnelling?
- Why your candle needs a 14-day cure
Editorial standards & sources
About this guide: Written by the CANDLEMAKINGSUPPLIESINDIA team. Product recommendations reflect the CSI range; the pool-radius method, the minutes-per-millimetre conversion and the projection and convergence tests 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 for either size and recommends the wicks for soy, beeswax and other eco-friendly waxes. Cotton Braided Wicks Ready Made ₹120/10 to ₹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, ₹41.30 each. 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. Natural Soy Pearl Wax ₹450 / 1 kg, ₹2,124 / 5 kg, ₹4,248 / 10 kg, ₹21,240 / 50 kg — ₹424.80/kg from 5 kg up; the page states no maximum fragrance load, no melting point and no pour temperature, only that it suits "a variety of container types and candle designs". Black Matte Glass Jar ₹354 / pack of 5, ₹708 / pack of 10 — ₹70.80 each; page states a fill weight of 200 ml (a volume, not a weight), no diameter and no hot-pour ceiling. 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, 8 cm height, 6 cm diameter — the title says "Pack of 6" while the body says five, so verify the count before costing per jar. Clear Glass Jar with Golden Lid (150 gram) ₹944 / pack of 10, ₹1,888 / pack of 20 — ₹94.40 each; page states 150 g fill capacity, 8 cm height, 7 cm outer diameter, approximately 6.5 cm base diameter 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 outer rim and base diameter and safe for hot-pour up to 85°C, with the same dimensions given for both sizes. 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 (wax cost ₹62.10 at ₹450/kg and ₹58.62 at ₹424.80/kg); internal radius is the measured inside of the jar at the wax line (33 mm in the worked log), never a stated outer diameter; sessions are four hours (240 minutes); minutes per millimetre = 240 ÷ gain in millimetres; pool area share = (pool radius ÷ internal radius)²; the convergence limit is estimated as the last radius plus a geometric tail on the last two gains and is explicitly an estimate from the maker's own numbers; the projection at session-one rate is a comparison device, not a prediction, because pool growth is not linear; cure of 14 to 21 days for soy containers is standard practice; allow 3–5% wax loss for spills and top-ups as a planning allowance. All pool radii, gains, minutes per millimetre, convergence estimates, projections and grams are a maker's own measurements used to demonstrate the arithmetic — no CSI wax, wick or jar page publishes a melt-pool rate, a melt-pool depth, a burn rate, hours per gram or a burn time, 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.