I Already Finalised My Wick for a 7 cm Jar — If My New Jar Is 8 cm Wide, Do I Have to Repeat the Entire Burn-Testing Process?

I Already Finalised My Wick for a 7 cm Jar — If My New Jar Is 8 cm Wide, Do I Have to Repeat the Entire Burn-Testing Process?

 

Cotton Braided ₹12.00 per wick CSI 468 1 kg ₹650.00 Autumn 100 g ₹542.80
7 cm to 8 cm · retest the right half
Repeat the fill weight, the wick bracket and the final third; carry over the load and cure you already proved.
★★★☆☆
"Warm comforting fragrance"
M AVerified buyer · Sep 2025
Autumn
★★★★★
"all the materials are high quality and ultimate fragrance range"
Arminder KaurVerified buyer · Mar 2026
Premium Coconut Soy Wax CSI 468 (Flakes Form) For Container Candles
★★★★☆
"Quality of the wick is good for jar candles, team can work on the pricing and delivery timelines."
Monika DeepVerified buyer · Oct 2025
Eco Candle Wicks
★★★★★
"Quality wick, works very well"
AshwiniSep 2025
Eco Candle Wicks
★★★★★
"The jars were of good quality"
Soumili GopeVerified buyer · Mar 2026
Clear Glass Jar with Golden Lid (150 gram)
★★★★★
"Very good"
Tina Lynette Lazaro MogantiVerified buyer · Dec 2025
Black Matte Glass Jar
★★★☆☆
"Warm comforting fragrance"
M AVerified buyer · Sep 2025
Autumn
★★★★★
"all the materials are high quality and ultimate fragrance range"
Arminder KaurVerified buyer · Mar 2026
Premium Coconut Soy Wax CSI 468 (Flakes Form) For Container Candles
★★★★☆
"Quality of the wick is good for jar candles, team can work on the pricing and delivery timelines."
Monika DeepVerified buyer · Oct 2025
Eco Candle Wicks
★★★★★
"Quality wick, works very well"
AshwiniSep 2025
Eco Candle Wicks
★★★★★
"The jars were of good quality"
Soumili GopeVerified buyer · Mar 2026
Clear Glass Jar with Golden Lid (150 gram)
★★★★★
"Very good"
Tina Lynette Lazaro MogantiVerified buyer · Dec 2025
Black Matte Glass Jar
Reviews collected and published through Judge.me on candlemakingsuppliesindia.store. They are general reviews of the products named on each card, not assessments of the advice set out below. Wording is unedited.
Shop Cotton Braided wicks — ₹120.00 for 10 Plan my 8 cm retest on WhatsApp
✓ Prices verified 26 September 2026, stock checked per pack ✓ MSDS and IFRA documentation on request on WhatsApp ✓ Raw materials only — CSI does not sell finished candles
CSI Jar & Container Guides · Diameter × Wick
A centimetre wider sounds small. For the wick it is nearly a third more pool, and that part of your testing has to be done again, properly. The good news: the parts that belonged to the wax and oil do not.
+30.6%
melt-pool area from a 7 cm to an 8 cm inside diameter (38.48 to 50.27 cm²) · CSI live pricing, September 2026
Quick answers — read this first
Do I have to repeat the whole burn test for an 8 cm jar? No, but the parts the diameter touches, yes, in full: the fill weight, the wick bracket and the burns to the final third. The load test, cure trials and wax-oil compatibility checks carry over if the wax, oil and load are unchanged.

Why can't I just keep the 7 cm wick? Going from 7 cm to 8 cm inside adds 30.6% to the pool area and 14.3% to the distance from wick to glass. A wick that just filled the 7 cm pool in 3 to 4 hours may now leave a ring at the glass.

How long does the retest take? In our worked schedule, about 18 days instead of about 35 for repeating everything: one pour, one cure, burns to the final third.

What does it cost? Nine 200 g retest candles in CSI 468 with Autumn as the example oil: ₹2,387.60 in purchases, or ₹2,114.20 if you still hold the wicks. Repeating the whole programme would consume more than twice the materials.
The short answer
Repeat in full: fill weight (water-fill and test pour), the wick bracket and burns to the final third. These depend on the jar.
Skip: the fragrance-load test, cure trials, compatibility and colour checks, and pour temperature (unless the new jar's page states a lower limit). These depend on the wax and oil, which did not change.
Fold in: a separate confirmation round, by pouring three jars per rung; hot throw and wet spots, by watching the retest candles.
Time and cost: about 18 days and nine candles (₹1,957.75 of materials consumed), against about 35 days and 21 candles (₹4,579.13) to repeat everything.
Shop: Cotton Braided Wicks · Eco C1/C2 wicks · Premium Coconut Soy Wax CSI 468 · Autumn · Weighing Scale · all candle wicks
In this guide
7 cm to 8 cm: repeat everything, or only what the diameter touches? Worked schedules drawn to scale, 1 day = 14 px. A 7-day cure and one burn session a day are assumptions: use your own proven cure. day 0 day 5 day 10 day 15 day 20 day 25 day 30 day 35 Repeat the entire programme fill load test: cure burns bracket: cure burns 1-4 final third confirm: cure confirm burns ≈35 days Scoped retest (3 jars per rung) fill + pour bracket: cure burns 1-4 final third ≈18 days Skipped: load test (a wax and oil decision), separate confirmation round (3 jars per rung already repeat), cure trials, compatibility checks. Both timelines keep the parts the diameter changes: fill weight, the wick bracket and burns to the final third. Pool area rises 30.6% from 7 cm to 8 cm inside, so the wick answer can move; the load, cure and compatibility answers belong to the wax and oil, which did not change.
Two worked schedules on the same to-scale day axis. The top row repeats the whole programme for the 8 cm jar, load test and confirmation round included: about 35 days. The bottom row keeps only what the diameter changes, with three jars per rung so the bracket repeats itself: about 18 days. The cure length and one burn a day are assumptions; substitute your own proven cure.
The page names "exceeding 8 cm" · ₹120.00 for 10
Cotton Braided Wicks Ready Made: the rung to test above your old winner
Keep your wax · CSI 468 1 kg ₹650.00
Same wax, same oil, same load: the reason half the programme carries over
WhatsApp +91 7397976926
Order the 8 cm retest kit
Straight answer
I already finalised my wick for a 7 cm jar. If my new jar is 8 cm wide, do I have to repeat the entire burn-testing process?
Not the entire process, but every part the diameter touches, and those parts in full. Moving from 7 cm to 8 cm inside grows the pool area by 30.6% (from 38.48 to 50.27 cm²) and the distance from wick to glass by 14.3%, so the wick result can move. Repeat three things: the fill weight (the 8 cm jar holds a different candle; at the same fill height, about 31% more wax in our worked example), a wick bracket built around your old winner, and burns to the final third, because heat near the bottom belongs to this jar's glass and base. Skip the things that belong to the wax and oil rather than the jar: the fragrance-load test, cure trials, compatibility and colour checks, and your pour temperature, unless the new jar's page states a lower hot-pour limit. Pour three jars per rung so the bracket repeats itself and you do not need a separate confirmation round. In our worked schedule that is about 18 days instead of about 35, and nine candles instead of 21. One condition: all of this only holds if the wax, oil, load and supplier are exactly what you proved in the 7 cm jar. Change any of them at the same time, and you are back to the full programme.
One line: retest what the jar decides (fill, wick, final third) in full; keep what the wax and oil decided (load, cure, compatibility).
The 8 cm retest for ₹2,387.60. Ten each of Cotton Braided, Eco C1 and C2 (₹273.40), 2 kg of CSI 468 (₹1,300.00) and 150 g of Autumn (₹814.20), all in stock on 26 September 2026. Still holding wicks from the 7 cm programme? ₹2,114.20.
Buy Cotton Braided — ₹120.00

What actually changed between the 7 cm and the 8 cm jar

One centimetre across. Nearly a third more pool.

The retest scope follows from a simple question: which of your earlier test results depended on the jar, and which on the wax and oil? The jar changed; nothing else did. So list what the jar controls.

The pool: 30.6% more area

If 7 cm and 8 cm are inside diameters, the pool goes from 38.48 cm² to 50.27 cm² (π × r²): 30.6% more wax surface for the same flame to melt. If they are outside figures with walls of about 3.5 mm, the insides are 6.3 and 7.3 cm and the increase is 34.3%. Either way, the flame's reach to the glass rises from 3.5 cm to 4.0 cm, 14.3% further in every direction. A common rule of thumb (about one hour per 2.5 cm of width, very rough) moves the expected full-pool time from about 2.8 hours to about 3.2 hours. A wick that reached the glass at three and a half hours in the 7 cm jar has a real chance of leaving a ring in the 8 cm one. What a single 5 mm step does is worked through in the 5 mm post; this is two of them.

The candle: a different fill weight

Worked example: if your 7 cm jar held a 150 g candle and the 8 cm jar is filled to the same height, the candle grows with the area, to about 196 g, 31% more. We plan the retest at 200 g (16 g oil + 184 g wax at 8%) until the scale says otherwise. That changes grams per candle, order quantities and any net weight you print, and it has nothing to do with the wick. It is still part of the retest, because it is still the jar. The weighing method is in the fill-weight post.

The glass: a different final third

Base thickness, wall thickness and the shape near the bottom decide how heat builds as the candle burns down. None of that transfers from one jar to another. A wick that was calm to the last centimetre in the 7 cm jar has not been tested near the bottom of this one. Thick bases are covered in the thick-base post.

Argued against our own interest: CSI does not list an 8 cm jar; none of our listings states 8 cm as any kind of diameter or width. If your new jar came from elsewhere, everything here still applies and you may need nothing from us but wicks. If you are choosing an 8 cm jar, measure the inside yourself: no CSI listing states an inside diameter.

The retest scope: repeat, skip, fold in

Retest what the jar decides. Keep what the wax and oil decided.
Retest scope · 7 cm to 8 cm, same wax, oil, load and supplier · our judgement
Each test from your original programme, and what to do with it now
Test For the 8 cm jar Why
Fill weight: water-fill and test pour Repeat in full The jar holds a different candle; wax, oil and label figures all follow from it
Wick bracket (first-burn reach) Repeat in full Pool area is 30.6% larger; the old winner may now fall short
Burns to the final third Repeat in full Heat near the bottom depends on this jar's glass, base and diameter
Headspace and lid clearance Quick check New rim and lid; one fitting settles it
Hot throw in a room Observe, no extra candles A larger pool can change throw; judge it during the bracket burns
Wet spots and adhesion Observe, no extra candles New glass surface; note it on the retest candles
Fragrance load (6/8/10% test) Skip A wax-and-oil decision; neither changed
Cure time Skip A property of the wax and oil; use the cure you proved
Wax and oil compatibility, colour, frosting Skip Nothing about the wax, oil or dye changed
Pour temperature Skip, unless the jar says otherwise Stays as your wax page states, unless the new jar's page states a lower hot-pour limit
A separate confirmation round Fold in Three jars per rung in the bracket already repeat the result

Why the load test can be skipped

Your 6%, 8% and 10% trial answered a question about the oil in the wax: how much the wax takes up comfortably, how the scent reads cold and hot, whether it sweats or frosts. The jar played almost no part in it. The two-ceilings rule still governs (the lower of the wax page's and the oil page's stated maximum: 11% for Autumn in CSI 468), and nothing about the jar changes either ceiling. Keep the load you chose.

Why the cure can be skipped

Cure time is how long the wax and oil need to settle before they burn and throw as they will in a customer's home. The Autumn page does not state a cure, but many CSI oil pages (25 of 102) state 48–72 hours for soy; many soy makers wait a week or two. Whatever you proved for the 7 cm jar, use again. Do not shorten it for the retest: a bracket judged on under-cured candles can pick the wrong wick.

Why the bracket and the burn-down cannot be skipped

They are the jar. The first-burn pool depends on diameter; the final third depends on the glass. A half-test (one burn of the old wick in the new jar, and ship if it looks fine) skips exactly the part most likely to fail: a wick that reaches the glass at the top can still run hot lower down, and one that falls short at the top will tunnel. How to choose the rungs around your old winner when only the width changed is the wider-jar step-up post; this post assumes a bracket of the old winner, one step up and one step beyond.

When "skip" becomes "repeat"
If anything besides the jar changed at the same time (a new wax batch from a different supplier, a new oil, a different load, a new dye), the skip column no longer applies to that item. The same logic governs changing oil in the same jar: our post on retesting the wick after a fragrance change sets out when a quick check is enough. Change one thing at a time, and the retest stays small.

The scoped retest, step by step

Nine candles, one pour, one cure, burns to the end.

Worked example: the 7 cm winner was Eco C2 in CSI 468 at 8% with Autumn. The retest brackets it in the 8 cm jar with C2 (expected to run short now), Cotton Braided Ready Made (whose page names "exceeding 8 cm") and a double C1 (two thin wicks as the upper rung), three jars each. Your rungs may differ; the scope does not.

1
Measure and water-fill the new jarInside diameter at pool height and near the base, inside depth, and water to your fill line on three jars. Multiply by 0.86 to 0.9 (rule of thumb) for a first fill estimate; the test pour in step 3 gives the real figure.
2
Set the wicksThree jars with C2, three with Cotton Braided, three with two C1s on a diameter. Centre and hold them straight. Keep one leftover 7 cm candle from your original programme as a control; if you have none, pour one.
3
Pour all nine from one batch, at your usual temperatureCSI 468's page states 58°C to 60°C. Weigh one jar before and after pouring: that is your new fill weight, which you will confirm on the cooled candles.
4
Cure exactly as long as the 7 cm candles didNot shorter, and not longer "to be safe": the comparison with your 7 cm result depends on it.
5
Burn 1: 3 to 4 hours, with the controlAll nine plus the control, lit together, never unattended, away from draughts. Pool width every hour. The control should repeat its old result; if it does not, the session is off and needs rerunning.
6
Burns 2 to 4, then to the final thirdRepeat sessions until about 1 cm of wax is left (common practice) on at least the leading rung and its neighbour. Watch for a flame that grows, soot, and glass reading markedly hotter low in the jar (check with a non-contact thermometer (CSI does not sell one), never your hand). Judge throw in the room as you go.
7
Decide on three agreeing jarsIf all three jars of one rung pass every burn, that is the 8 cm wick; record it with the new fill weight. If they disagree, look for a cause before calling it. If no rung passes, send us the log before you pour another nine.
Mistake: burning one 8 cm candle with the old wick, seeing a full pool at four and a half hours, and calling it "close enough". Why it fails: a full pool that late is past the 3 to 4 hour rule of thumb, so customers who burn for two or three hours will tunnel it, and nobody has checked the final third. Fix: the bracket, three jars per rung, taken to the end.

Time: 18 days against 35

Both schedules in the diagram use the same assumptions: a 7-day cure (substitute yours) and one burn session a day, with about a week of sessions to reach the final third. The difference is what they contain.

Two worked schedules · days from the jars arriving
What each contains, and how long it takes
Stage Repeat everything Scoped retest
Measure and fill weight Day 0 to 1 Day 0 to 1, bracket poured the same day
Load test: pour, cure, burns Day 1 to 11 Skipped
Wick bracket: cure Day 11 to 18 Day 1 to 8
Burns 1 to 4 Day 18 to 22 Day 8 to 12
Final third Day 22 to 28 Day 12 to 18
Confirmation round: pour, cure, burns Day 22 to 35 Folded in: three jars per rung
Total About 35 days, 21 candles About 18 days, 9 candles

The saving is almost entirely the load test and the separate confirmation round; the cure and the burn-down, which are the slow parts, stay. That is the honest shape of it: a scoped retest roughly halves the calendar, it does not reduce it to an afternoon. Anyone promising you can "just check the first burn" is skipping the final third.

What to buy for the retest

Five items, chosen on page wording, price and stock on 26 September 2026. If your 7 cm programme used a different wax or oil, keep using those; the retest only holds if they do not change.

1
wick · the likely middle rung at 8 cm
Cotton Braided Wicks Ready Made
The page says these are "engineered for large-diameter candles exceeding 8 cm" and gives the wick height as 10.16 cm. An 8 cm jar sits right on the figure the page names, so this is a rung worth testing, and the page wording is a positioning, not a verdict. Limitation: the step from Eco C2 to Cotton Braided is a change of construction as well as size; the retest is how you learn whether it overshoots in your wax.
Pack Price Per wick What it covers
Pack of 10 ₹120.00 ₹12.00 the retest: 3 jars, 7 spare
Pack of 50 ₹600.00 ₹12.00 a 50-candle run if it wins
Pack of 100 ₹1,200.00 ₹12.00 a 100-candle run if it wins
Pack of 500 ₹6,000.00 ₹12.00 production
Pack of 1000 ₹12,000.00 ₹12.00 production
₹12.00 per wick at every pack size; ₹2.56 more per candle than C2. Buy 10 — ₹120.00
2
wick · your old winner and the double rung
Eco Candle Wicks — Thin (C1) and Thick (C2)
The page describes wicks "crafted from natural fibers like cotton and paper", "Perfect for Natural Waxes", and states no width, length or jar diameter. In the worked example C2 was the 7 cm winner; in the 8 cm retest it becomes the lower rung, and two C1s in one jar are the upper rung. If you still hold C2 and C1 from the original programme, you need nothing here. Limitation: two sizes, one construction.
Pack Price Per wick What it covers
Thin (C1) / 10 ₹59.00 ₹5.90 the double-C1 rung: 6 wicks for 3 jars
Thick (C2) / 10 ₹94.40 ₹9.44 the old winner: 3 jars
Thin (C1) / 100 ₹590.00 ₹5.90 50 double-wick candles
Thick (C2) / 100 ₹944.00 ₹9.44 100 candles if C2 still wins
Double C1 costs ₹11.80 a candle, C2 ₹9.44. Buy C1 + C2 — from ₹59.00
3
wax · unchanged from the 7 cm programme
Premium Coconut Soy Wax CSI 468 (Flakes Form) For Container Candles
The page states "Fragrance Load Up to 13%" and "Pour Temperature 58°C – 60°C". It is the worked example's wax, and the reason the retest can skip the load test: the load is a wax-and-oil decision, and neither changed. If your 7 cm programme used CSI 464, stay with CSI 464; switching wax during a jar change means you no longer know which change moved the result. The 500 g and 1 kg are ₹0.65 per gram; 5 kg and 10 kg are ₹0.64.
Size Price Per gram Candles at 184 g wax
500 g ₹325.00 ₹0.65 2
1 kg ₹650.00 ₹0.65 5
5 kg ₹3,185.00 ₹0.64 27
10 kg ₹6,370.00 ₹0.64 54
Two 1 kg packs (₹1,300.00) cover nine 200 g retest candles. Buy 1 kg — ₹650.00
4
oil · unchanged, and a reason not to retest the load
Autumn Fragrance Oil
The page describes "crisp red apple, cinnamon leaf, and orange zest top notes, golden maple, clove bud, and nutmeg middle notes, and warm oak, amber, and vanilla base" and states "Recommended fragrance load 7-11% for candles". With CSI 468's 13% the lower ceiling, 11%, governs; the worked example stays at 8%. From 50 g to 1 kg it is ₹5.43 per gram at every size, so the 1 kg saves nothing per gram. Limitation: a spice-and-vanilla oil with a heavy base is the kind of oil that can shift a wick result, which is one more reason the wick is retested in the new jar with this oil, not a stand-in.
Size Price Per gram 150 g candles at 8% 200 g candles at 8%
15 gm ₹94.40 ₹6.29 1 none (16 g needed)
50 gm ₹271.40 ₹5.43 4 3
100 gm ₹542.80 ₹5.43 8 6
500 gm ₹2,714.00 ₹5.43 41 31
1 kg ₹5,428.00 ₹5.43 83 62
The retest needs 144 g: 100 g + 50 g, ₹814.20. Buy 100 g — ₹542.80
5
tool · the new fill weight
Candle Making Weighing Scale
The part of the retest that is not about the wick at all: an 8 cm jar holds a different candle, so the grams of wax and oil per candle, the order quantities and any net weight on the label all change. The page describes a digital scale in "grams or ounces" with "simple one-button operation"; it states no capacity or reading step, so check yours reads to at least 1 g, or ask us. Argued against our own interest: if the scale you used for the 7 cm jar reads single grams, keep using it.
Unit Price Per unit What it covers
Single ₹354.00 ₹354.00 water-fill, test pour and every weighing in the retest
One weighing session sets the new fill weight before the bracket is poured. Buy the scale — ₹354.00
When the right purchase is nothing: if you still have C2, Cotton Braided and C1 from the original programme, your wax and oil, and a scale, the retest needs nothing from us. Pour the nine this week. Come back when one rung has taken three jars to the final third.

Cost: what the scoped retest saves, and what it does not

The retest costs less than repeating everything. It costs far less than 100 candles on the old wick.

Worked example, 200 g candles at 8% (184 g CSI 468 + 16 g Autumn), CSI live pricing on 26 September 2026; jars not included (yours are the new 8 cm jars); costs exclude labour, freight, packaging and GST.

Retest purchases · CSI live pricing, 26 September 2026
Nine candles, control from stock: ₹2,387.60
Item Needed Buy Price
Cotton Braided Wicks Ready Made 3 Pack of 10 ₹120.00
Eco C2 (old winner) and Eco C1 (double rung) 3 and 6 10 + 10 ₹153.40
Premium Coconut Soy Wax CSI 468 9 × 184 g = 1,656 g 2 × 1 kg ₹1,300.00
Autumn Fragrance Oil (your oil) 9 × 16 g = 144 g 100 g + 50 g ₹814.20
Total 9 candles 344 g wax, 6 g oil, 18 wicks left over ₹2,387.60

The oil is tight: 150 g bought, 144 g used. Weigh it straight into the wax. If you need a tenth candle, buy another 50 g (₹271.40; Autumn is ₹5.43 per gram from 50 g to 1 kg, and the 15 g is ₹6.29).

Against repeating everything

Valued at what is used rather than the packs bought, the nine retest candles consume ₹1,957.75 of wax, oil and wicks. Repeating the load test (nine more candles) and a separate confirmation round (three more) would add ₹2,621.38, for ₹4,579.13 in all. The scope avoids about 57% of the materials and about 17 days. That is the saving; it is real, but it is not the main reason to scope the retest well.

Against not retesting at all

One 200 g candle in the 8 cm jar costs ₹218.45 in materials with a Cotton Braided wick, against ₹164.28 for the 150 g candle in the 7 cm jar with C2: ₹54.17 more per candle, almost all of it wax and oil, not wick (Cotton Braided is ₹2.56 more than C2). A hundred 8 cm candles poured on the old wick put ₹21,844.80 of materials at risk before jars, and if they tunnel, the fix is melting out, re-wicking and re-pouring. What to change first when a wider jar tunnels on the old wick is the tunnelling fix-order post.

Argued against our own interest: don't buy a 100-pack of Cotton Braided because its page mentions 8 cm. The page names a range, not your result; the retest might keep C2 or pick the double. Every cotton wick here is the same price per wick at every pack size, so waiting for the result costs you nothing.

Fitting the 8 cm retest in before Diwali

Diwali falls on 8 November 2026, 43 days after these prices were checked. The scoped retest fits; the full programme, at about 35 days from the jars arriving, barely does, and leaves no time to pour. Dispatch is from Pune; confirm delivery time on WhatsApp.

A dated plan · calendar facts, not forecasts
The 8 cm retest inside 43 days
By Days from 26 Sep Do this
28 September 2026 2 Order wicks, wax and oil; have the 8 cm jars in hand
1 October 2026 5 Measure, water-fill, pour the nine-candle bracket
8 October 2026 12 Cure done; burn 1 with the control
19 October 2026 23 Final third reached; 8 cm wick and fill weight recorded
21 October 2026 25 Production materials ordered for the new fill weight
By 30 October 2026 34 Production pour and cure
8 November 2026 43 Diwali

If the retest slips, ship Diwali in the 7 cm jar you have already proven and launch the 8 cm jar for Christmas (25 December 2026).

Diwali 8 November 2026: bracket poured by 1 October, 8 cm wick recorded by 19 October, production ordered by 21 October. Send us the new fill weight and candle count and we will quote wicks, wax and oil with a GST invoice and a dispatch date.
WhatsApp a Diwali quote
The CSI principle
Retest what the jar decides. Keep what the wax and oil decided.
Fill weight, wick and the final third belong to the jar and are repeated in full; load, cure and compatibility belong to the wax and oil and carry over, as long as nothing else changed.
"A centimetre wider is nearly a third more pool. The wick deserves a fresh test; the fragrance load does not."
— CandleMakingSuppliesIndia
Why trust this guide

CandleMakingSuppliesIndia sells the wicks, wax, oil and scale named here, and does not sell finished candles. This page tells you we do not list an 8 cm jar, that a page naming "exceeding 8 cm" is not a result, and that you should not buy a 100-pack of any wick until the retest picks one. That is deliberate: the retest exists to stop a hundred candles being poured on a guess.

Every price was verified on CSI's live store on 26 September 2026; every pack in a pick table is in stock on that date. Wick, wax and oil wording is quoted from the product pages; where a page is silent, we say so.

The scope table and the two schedules are editorial judgement; the 7-day cure, one burn a day and the 200 g planning candle are worked-example assumptions; the 3 to 4 hour full pool, one hour per 2.5 cm of width, the 0.86 to 0.9 wax factor and stopping at about 1 cm of wax are rules of thumb or common practice. For bulk pricing, GST invoicing, and MSDS and IFRA documentation on request, message us on WhatsApp at +91 7397976926.

Frequently asked questions

Do I need to retest my wick if I change to a bigger jar?
Yes. Going from 7 cm to 8 cm inside adds 30.6% to the pool area, so the wick result can move. Repeat the fill weight, a wick bracket and burns to the final third; the load test and cure trials carry over if the wax, oil and load are unchanged.
Which candle tests can I skip when changing jar size?
The fragrance-load test, cure trials, wax-oil compatibility and colour checks, and your pour temperature unless the new jar's page states a lower hot-pour limit. They depend on the wax and oil, not the jar.
How much bigger is the melt pool in an 8 cm jar than a 7 cm jar?
30.6% bigger if both are inside diameters (50.27 cm² against 38.48 cm²), or 34.3% if they are outside figures with walls of about 3.5 mm. The wick's reach to the glass rises by 14.3%.
How long does it take to retest a wick for a new jar?
In our worked schedule, about 18 days: one pour, your usual cure, burns 1 to 4 and burns to the final third, with three jars per rung. Repeating the whole programme takes about 35 days.
Will the same wick work in a jar 1 cm wider?
Sometimes, but you cannot assume it: the pool is nearly a third larger. Test the old wick alongside one step up and one beyond, three jars each, and keep it only if it reaches the glass in about 3 to 4 hours and behaves to the final third.
What does it cost to retest wicks for a new candle jar?
In the worked example, nine 200 g candles in CSI 468 with Autumn as the oil: ₹2,387.60 in purchases (wicks, 2 kg of wax, 150 g of oil), or ₹2,114.20 if you still hold the wicks. Jars are extra.
Your 8 cm jar, retested
Nine candles, about 18 days, ₹2,387.60.
Keep your wax, oil, load and cure. Weigh the new fill, bracket your old winner with Cotton Braided and a double C1, three jars each, and burn them to the final third next to a 7 cm control. Then order for the 8 cm jar with numbers you have seen.
Start with Cotton Braided Order the retest kit on WhatsApp
Continue the read — jar diameter and wick selection
Editorial standards & sources
About this guide: part of CSI's jar-diameter and wick-selection cluster. It answers whether a wick finalised for a 7 cm jar must be fully retested for an 8 cm jar: what the jar changes (pool area, fill weight, final third), a repeat / skip / fold-in scope table, a scoped nine-candle retest, two worked schedules and the cost of each approach. It does not give a definitive wick for any jar.

Customer reviews: The six reviews at the top of this page are genuine, published Judge.me reviews left by CSI customers on the product pages named on each card — Autumn, Black Matte Glass Jar, Clear Glass Jar with Golden Lid (150 gram), Eco Candle Wicks, Premium Coconut Soy Wax CSI 468 (Flakes Form) For Container Candles. They are general product reviews, not assessments of the container advice on this page. Names, star ratings, dates and products are as recorded by Judge.me and wording is unedited. "Verified buyer" appears only on reviews Judge.me recorded as verified — M A, Arminder Kaur, Monika Deep, Soumili Gope, Tina Lynette Lazaro Moganti. The reviews from Ashwini are published but not recorded as verified, and carry no badge. Reviews below five stars are included as published, not filtered out.

Figures verified 26 September 2026, CSI live pricing: Cotton Braided Wicks Ready Made 10 ₹120.00, 50 ₹600.00, 100 ₹1,200.00, 500 ₹6,000.00, 1000 ₹12,000.00; Eco Candle Wicks Thin (C1) 10 ₹59.00, 100 ₹590.00; Thick (C2) 10 ₹94.40, 100 ₹944.00; Premium Coconut Soy Wax CSI 468 500 g ₹325.00, 1 kg ₹650.00, 5 kg ₹3,185.00, 10 kg ₹6,370.00; Autumn Fragrance Oil 15 g ₹94.40, 50 g ₹271.40, 100 g ₹542.80, 500 g ₹2,714.00, 1 kg ₹5,428.00; Candle Making Weighing Scale ₹354.00. Per wick = pack price ÷ wicks; per gram = price ÷ grams, two decimals.

Non-price figures: pool area = π × r² (7 cm: 38.48 cm²; 8 cm: 50.27 cm²); the 0.35 cm wall, 150 g and 200 g candles at 8%, the 7-day cure and one burn a day are worked-example assumptions. The 3 to 4 hour full pool, one hour per 2.5 cm of width, the 0.86 to 0.9 wax factor and stopping at about 1 cm of wax are rules of thumb or common practice. Wax ceilings and temperatures are as stated on the wax pages (formulation limits, not regulatory limits). Dates are calendar facts; the Diwali plan is a worked schedule, not a delivery promise. Costs exclude jars, labour, freight, packaging and GST.
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