My Candle Looks Patchy Through Clear Glass After Cooling — How Do I Determine Whether the Problem Is Wax Shrinkage or Jar Preparation?

My Candle Looks Patchy Through Clear Glass After Cooling — How Do I Determine Whether the Problem Is Wax Shrinkage or Jar Preparation?

 

Soy wax from ₹260 / 500g · ₹299 / 500g chunks 70g clear votives ₹31.86 each Stocked in India · ships nationwide
CSI diagnostic guides · glass adhesion
Shrinkage and dirty glass make patches that look identical. Only a split test from one pot can tell you which one you have.
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Gardenia Fragrance Oil
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Clear Glass Jar with Golden Lid 150 gram
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Soy Pillar Wax
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Candle Making Course Kit
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RenuVerified buyer · Jul 2026
Gilli Mitti Fragrance Oil
★★★★★
"I just tried making a candle out of curiosity & ordered supplies.. I found the ingredients to be of good quality. The wax quality especially has been top notch. I’ve tried the Gardenia fragrance oil. It is highly concentrated. The packaging of the items has been exceptionally good for me. Timely delivery."
SraddhaVerified buyer · Mar 2025
Gardenia Fragrance Oil
★★★★★
"The jars were of good quality"
Soumili GopeVerified buyer · Mar 2026
Clear Glass Jar with Golden Lid 150 gram
★★★★★
"This wax is really good to make pillar candles and for moulds …"
Lalitha JaganAug 2024
Soy Pillar Wax
★★★★★
"Product quality is too good and the nature of the supplier is really helpful."
Chanpreet kaurMay 2024
Candle Making Course Kit
★★★★★
"Ordered soy wax, fragrance oils, wax and thermometer — everything was great quality!…"
RenuVerified buyer · Jul 2026
Gilli Mitti Fragrance Oil
Reviews collected and published through Judge.me on candlemakingsuppliesindia.store. One longer review is shortened with an ellipsis; wording is otherwise unedited.
✓ Stated capacities quoted per jar page ✓ 15 waxes in stock ✓ Bulk pricing & GST invoicing on WhatsApp
Candle Business Guides · Glass Adhesion
You cannot tell from one candle, because contraction and contaminated glass produce patches that look broadly the same. What tells them apart is a split test: twelve clear votives, one pot of wax, two arms — cleaned and as-received — and three fixed checkpoints. Everything else stays identical, including the day.
12 jars
6 cleaned and dried against 6 straight from the box, poured from one pot and scored at set, at one week and after a temperature cycle · ₹1,283.83 of materials, ₹106.99 per test candle · CSI live pricing, September 2026
Quick answers — read this first
First, what are the patches? Air gaps where the wax has contracted off the glass. A "wet spot" is not wet — it looks dark because light reflects at two surfaces in the gap instead of one at a bonded wall. Nothing has leaked.

Can I tell shrinkage from dirty glass by looking? Not reliably from one candle. Contamination tends to give small, sharply outlined patches that repeat in the same places and preparation fixes them; contraction tends to give larger, softer-edged areas that vary jar to jar. Both overlap enough that a single photograph proves nothing.

So what does settle it? A paired split test. Twelve jars, one pot, one load, one pour temperature, one cooling spot. Six jars washed and fully dried, six poured exactly as they arrived. Score both arms at the same three checkpoints.

Does CSI publish a jar-cleaning instruction? No. No CSI container page gives a washing, wiping, drying or preheating procedure at all, and no CSI wax page publishes an adhesion figure or test. That gap is the honest reason you have to run the test yourself rather than follow a spec.
The short answer
One pot, two arms, same minute: the only honest comparison in this subject. Different days, different bags or different rooms and you have two anecdotes instead of one test.
Three checkpoints, not one: score at set (24–48 hours), at one week, and after a deliberate temperature cycle you choose and record. A preparation effect usually shows at the first checkpoint; movement with temperature shows later.
Cleaning is nearly free, wax is not: adding a wash-and-dry step costs seconds per jar. Replacing 10 kg of wax costs ₹5,074 to ₹6,370 and invalidates your wick and load testing.
One pot · two arms · three checkpoints · twelve jars ONE POT 772.8 g wax · 67.2 g oil ARM A · 6 jars washed, fully dried ARM B · 6 jars exactly as received CHECK 1 at set 24–48 hrs CHECK 2 at one week lids on, stable room CHECK 3 after a cycle you choose and log it The only difference between the two arms is what happened to the inside of the glass before the pour.
Twelve jars, thirty-six scoring events. Arm A better at every checkpoint points at preparation. Both arms equally patchy points at contraction and conditions. Both clean at check 1 and patchy by check 3 points at temperature movement after the pour, not at the glass.
Straight answer
How do I find out whether patchy jars are a shrinkage problem or a preparation problem?
By running them against each other on the same afternoon. Pour twelve clear jars from one pot — six whose inner walls you have washed and dried completely, six poured exactly as they came out of the box — with one wax, one oil, one load, one pour temperature, one cooling position and one person pouring. Then score all twelve at three fixed checkpoints: at set (24–48 hours), at one week, and after one deliberate temperature cycle that you choose and write down. The comparison is the whole method, because the two causes look too similar for a photograph to separate. If the cleaned arm is consistently better, the gap you have is substantially a preparation effect and the fix costs seconds per jar. If both arms are equally patchy, preparation is not your lever and you move on to glass temperature, pour temperature and cooling position — still all cheap. If both arms are clean at the first checkpoint and patchy by the third, your problem is temperature movement after the pour, which is a storage and transit question and not a glass question at all. Use the cheapest clear vessel you can, because you are pouring candles you will not sell: Clear Glass Votive Jars 70 gram at ₹31.86 each make the whole twelve-jar run ₹1,283.83 of materials, or ₹106.99 per test candle, against ₹5,074 for the 10 kg wax bag you might otherwise buy on a hunch. And be clear about the information you do not have: no CSI container page states a cleaning or preheating procedure, and no CSI wax page publishes an adhesion measurement. There is no spec to follow here. There is only your own test.
One line: twelve jars, one pot, two arms, three checkpoints — cleaned against as-received is the only comparison that can separate preparation from contraction.
A split test wants cheap clear glass and nothing else fancy. Clear Glass Votive Jars at ₹31.86 each in packs of 5 and 10, plus Luxury Soy Wax Chunks from ₹299 for 500 g — enough for twelve 70 g votives twice over.
Shop clear containers

What each cause tends to look like — and why that is not enough

Every maker wants a photograph that answers this. There isn't one, and believing there is costs more than the test does.

There are real tendencies, and they are worth knowing — as a reason to suspect something, never as a verdict. Contamination on the inner wall is a place the wax never bonded in the first place, so it tends to produce patches with definite outlines that sit where hands, dust or residue were. Contraction is a bulk behaviour of the wax as it solidifies and keeps responding to temperature, so it tends to produce broader, softer areas that differ from jar to jar even within one batch. The trouble is that a jar with a thin invisible film across most of its wall will give you broad soft patches too, and a jar cooling against a cold edge will give you a sharply bounded one. The tendencies overlap. That is why this post is about a test and not about a diagnosis.

Tendencies, not verdicts · what each cause often looks like
Five observable features, the preparation reading, the contraction reading and why neither is conclusive
Feature Could suggest preparation Could suggest contraction Why it is not conclusive on its own
Patch outline Sharp, defined, sometimes with a visible boundary Soft, map-like, fading at the edge A cold spot in the glass gives a sharp boundary too
Repeatability across jars Same places on many jars, if the handling is the same Different places on every jar Consistent handling and consistent cooling both repeat
Size distribution Many small marks, sometimes specks Fewer, larger areas A thin uniform film produces large areas as well
Height on the wall Wherever the contaminant was — often where fingers grip Often lower or in a band, following how heat left People grip jars at the same height heat leaves them
Timing Usually present as soon as the wax sets Can appear or grow over days A delayed appearance can still start at a weak bond

The second reason to test rather than diagnose is that there is nothing to look up. Not one CSI container page states a washing, rinsing, wiping, drying or preheating instruction — across 74 listed containers, the pages give capacities, some dimensions, a hot-pour limit on two of them, and nothing about how to prepare the glass. And on the wax side, only two pages in the entire range mention glass adhesion at all: CSI 464 ("excellent glass adhesion", "reduced frosting compared to conventional soy waxes") and CSI 468 ("formulated for excellent glass adhesion and a one-pour finish"), both as wording with no figure, no method and no threshold behind it. Luxury Soy Wax Chunks, Natural Soy Pearl Wax and Coconut Wax say nothing about it. In the absence of a published standard, the only authority is your jar.

The mistake: "I'll just start washing every jar and see." It sounds sensible and it is almost useless, because you have changed your process without creating a comparison. Next month's candles will be different for a dozen reasons — the weather, a new wax lot, a different oil, a busier bench — and you will never know whether the washing step is earning its minutes. Worse, at any kind of volume it is a permanent labour cost: on a 500-candle run, ten seconds a jar is well over an hour of somebody's day. Add the step only if a split test says it works, and keep the test photographs so you can defend the decision later.

Designing the split so the answer means something

A split test is only as good as the things you held still. The design below has one variable and nine controls, and every one of those nine is a way people accidentally ruin this experiment.

One variable, nine controls
What changes between the arms, what must not, and how each control goes wrong
Element In this test How it goes wrong
Jar preparation The variable. Arm A washed and fully dried; Arm B exactly as received Half-drying Arm A, so you are testing residual water instead of cleanliness
Wax batch One bag, one pot, one melt Topping the pot up mid-pour from a second bag
Fragrance oil and load One oil, one percentage, weighed not measured Eyeballing the oil for the last few jars
Pour temperature One reading, logged at the first and last jar A long pour where the pot drifts 10°C between jar 1 and jar 12
Jar type and size Twelve identical vessels Using whatever is in the cupboard to make up the twelve
Wick One size, centred the same way, same stickers Mixing wick sizes "because it won't matter for adhesion"
Cooling location One bench, one spacing, nothing moved for 48 hours Overflow jars on a window ledge
Arm layout on the bench Arms interleaved, not grouped — A B A B across the tray All of Arm A on the warm side of the bench
Scoring One lamp, one distance, one printed grid, one scale 0–3 Grading Arm A in daylight and Arm B at night
Who scores Ideally someone who does not know which arm is which Scoring your own cleaned jars generously
Interleave the arms, then hide the labels
Two tricks lift the quality of this test enormously and cost nothing. First, alternate the arms across the cooling tray — A, B, A, B — so that any temperature gradient along the bench affects both arms equally. Second, write the arm letter on the base of each jar, not the side, and have someone else score the walls without turning the jars over. You are a biased observer of your own washing-up, and this is the cheapest way to stop that mattering.

Three checkpoints and what each one tells you

The checkpoint is this post's unit of analysis. One look at a candle tells you how it looks today; three looks at fixed intervals tell you what is driving it. Every temperature and duration below is your choice, recorded — there is no industry protocol here and this guide does not present one.

Scoring plan · 12 jars × 3 checkpoints = 36 observations
When to look, what to record, and what a difference between the arms would mean at that point
Checkpoint When What to record Arm A better here would suggest Both arms equal here would suggest
1 · At set 24–48 hours after the pour, lids off, nothing moved Face-by-face score 0–3, photograph against the grid, room temperature A genuine preparation effect — the wax never bonded where the glass was not clean Preparation is not your lever; look at glass temperature, pour temperature and cooling
2 · At one week Seven days, lids on, same room, undisturbed Same score, same lamp, same distance; note whether patches grew or appeared A weak bond that has continued to let go Ordinary contraction continuing in both arms equally
3 · After one cycle After a warm-and-cool movement you define and log yourself Same score, plus the two temperatures and the hold times you used Cleaned glass holding on better through movement Temperature movement is the dominant factor, not the glass

On checkpoint three, be deliberate and be honest about what it is. Pick a warm place and a cool place you can actually reach — a closed room in the afternoon and a cupboard in the morning, say — hold the jars in each for a period you choose, photograph at the end of each hold, and write down every temperature and duration. That gives you a repeatable comparison between two arms. What it does not give you is any way to convert the result into shelf life or into months of real time, and anyone who offers you that conversion is guessing. Treat it as "these twelve candles, this cycle, this result".

Don't let checkpoint 1 slip to "whenever I remember". The whole value of the split is that both arms are read at the same moment, and soy keeps moving for days. If you score Arm A on Tuesday night and Arm B on Thursday morning because you ran out of time, the difference you find may be two days of contraction rather than a cleaning effect. Put the three checkpoint dates in your phone before you pour, and score all twelve jars in one sitting each time. Twenty minutes, three times, is the entire time commitment.

The 12-jar split test, step by step

1
Buy fifteen jars and use twelveThree spares cover a breakage and a mistake. Clear Glass Votive Jars 70 gram come in packs of 5 at ₹159.30 and 10 at ₹318.60 — one of each gives you fifteen for ₹477.90, at ₹31.86 a jar. The page states a capacity of about 70 g of wax fill, which is unusually helpful: most CSI jars state millilitres and need weighing. Note that this page's body copy also mentions matte finishes, so check the variant you are ordering is the clear one.
2
Split them: six into Arm A, six into Arm B, letters on the baseArm A gets washed in warm water with a little plain detergent, rinsed thoroughly and then dried completely — inside and out, no residual moisture anywhere, which usually means leaving them upside down for several hours or wiping with a clean lint-free cloth and letting them stand. Arm B is not touched at all beyond fitting the wick. Six and six, letters underneath, numbers 1 to 12 as well.
3
Wick all twelve identically and interleave them on one trayOne wick size — Eco Candle Wicks Thin (C1) at ₹5.90 each is the sensible starting point for a 70 g votive, to be confirmed by your own burn test — centred with a wick sticker. Lay the tray out A, B, A, B so no arm occupies the warm end of the bench. Space the jars so none touches another.
4
Melt one pot and pour all twelve within a few minutesAt a stated 70 g fill and an 8% load each jar takes 64.4 g of wax and 5.6 g of oil; twelve need 772.8 g and 67.2 g. One kilogram of Luxury Soy Wax Chunks at ₹599 covers it comfortably. Its page states fragrance in at 80–90°C and gives the pour temperature two ways — "Recommended pour temp 75-80°C" in the details and "Pour at 70-80°C" in the how-to — so treat 70–80°C as the window, pick one figure, and log the reading at jar 1 and jar 12.
5
Score at checkpoint 1, then put the lids onAt 24–48 hours, photograph all twelve against a printed grid under one lamp and score each one 0–3. Then fit lids and leave them in a stable room until day seven. The Luxury Soy Wax Chunks page asks for a cure of a minimum 48 hours, ideally one to two weeks, before burn testing — so your appearance checkpoints and your burn test are on compatible timetables. Background on why that wait matters: why your candle needs a 14-day cure.
6
Score at checkpoints 2 and 3, then compare arm totalsAdd the six scores in each arm at each checkpoint — eighteen numbers in all. A clear, repeated difference in Arm A's favour at checkpoint 1 is the result that justifies adding a cleaning step to your process. No difference at any checkpoint means your minutes are better spent on cooling position, glass temperature and pour temperature. Keep the photographs: they become the reference standard you grade production against.
The CSI principle
Two causes that look the same are told apart by design, not by observation.
You will never see the difference between shrinkage and a dirty jar in one candle, however good your eyes or your camera. You will see it immediately in twelve candles poured from one pot with one thing changed. The experiment is the instrument.

What it costs, and what it saves

Here is the complete bill at live September 2026 prices, with every figure's working shown. The point of the table is the comparison at the bottom: this test costs a quarter of the wax bag it is designed to stop you buying.

12-jar split test · materials consumed and cart total
70 g votives at an 8% load, one wax, one oil — and what the alternative costs
Line Packs bought Pack price Used Cost of what is used
Luxury Soy Wax Chunks 1 kg ₹599 772.8 g ₹462.91
Sandalwood Fragrance Oil 100 gm ₹502.68 67.2 g ₹337.80
Clear Glass Votive Jar 70 gram Pack of 10 + pack of 5 ₹477.90 12 jars ₹382.32
Eco Candle Wicks · Thin (C1) 20 wicks ₹118 12 wicks ₹70.80
Candle Wick Stickers 1 sheet · 40 ₹100 12 stickers ₹30
Materials consumed 12 candles ₹1,283.83
Cart total ₹1,797.58 3 spare jars, 8 spare wicks, leftover wax and oil ₹106.99 per test candle
The alternative: a new wax on a hunch 10 kg ₹5,074 to ₹6,370 plus re-testing wick and load 4 to 5 times the test
Worked out above: wax 12 × 64.4 g = 772.8 g at ₹0.599/g = ₹462.91 · oil 12 × 5.6 g = 67.2 g at the 100 gm rate of ₹5.0268/g = ₹337.80 · jars 12 × ₹31.86 = ₹382.32 · wicks 12 × ₹5.90 = ₹70.80 · stickers 12 × ₹2.50 = ₹30. Cart = ₹599 + ₹502.68 + ₹477.90 + ₹118 + ₹100 = ₹1,797.58. Alternative figures are CSI 464 10 kg ₹5,074 and CSI 468 10 kg ₹6,370. CSI live pricing, September 2026.

There is a second saving that is easy to miss. If the test says preparation is not your lever, you have bought yourself permission not to add a washing step — and at any volume that is worth real money. Ten seconds a jar across a 1,000-candle festive run is nearly three hours of labour you now do not spend, every run, on something that does nothing.

What to buy for the split test

Cheap clear glass, a wax whose page publishes the temperatures you need to hold still, and a stated-capacity vessel so your arithmetic is not a guess. Each card lists every pack and the per-unit maths.

1
Stated in grams, not millilitres
Clear Glass Votive Jar 70 gram
The right vessel for a test you will repeat, for two reasons. It is the cheapest clear glass in CSI's votive range at ₹31.86 a jar, so twelve jars of wax and oil cost less than a single large candle. And its page states "Capacity: ~70g wax fill" — a weight, not a volume — which means your 8% arithmetic rests on a published figure instead of on a conversion you had to invent. The page states no dimensions, so measure the mouth before you size a wick, and note that its body copy mentions matte finishes even though this listing is the clear one.
Size Price Per piece
Pack of 5 ₹159.30 ₹31.86
Pack of 10 ₹318.60 ₹31.86
₹31.86 per jar at both listed pack sizes Buy the clear votive
2
Publishes the temperatures, says nothing about glass
Luxury Soy Wax Chunks for Jar / Container Candles
The wax to run a preparation test on, because its page pins down everything except the thing you are testing. Stated load 8% to 13% of total wax weight with 10% recommended, fragrance in at 80–90°C, a pour window given two ways — "Recommended pour temp 75-80°C" and "Pour at 70-80°C" — and a cure of a minimum 48 hours, ideally one to two weeks, before burn testing. On glass adhesion and on appearance the page is silent, which is exactly the right condition for this experiment: nothing on the label can prejudice your reading of the jars. The listed price per kilo is flat from 500 g to 10 kg, so there is no penalty for buying one kilo.
Size Price Per kg 70g votives @ 8%
500 g ₹299 ₹598 ≈7
1 kg ₹599 ₹599 ≈15
5 kg ₹2,995 ₹599 ≈77
10 kg ₹5,999 ₹599.90 ≈155
₹38.58 of wax per 70 g votive at 1 kg pricing Buy Luxury Soy Chunks
3
One oil, held constant, cheap per gram at 100 g
Sandalwood Fragrance Oil
For a test like this the oil's job is to not vary, so buy one bottle big enough to finish the batch and resist the temptation to pour two scents. The 100 gm bottle at ₹502.68 works out at ₹5.0268 a gram and covers the 67.2 g twelve votives need with room to spare — whereas a 15 gm trial bottle at ₹93.22 is ₹6.21 a gram and would not fill three jars. Hold the load at 8% on both arms and write the figure on the log. Whether the oil itself affects adhesion is a real question, and the honest way to ask it is an unscented control jar, not a changed load.
Size Price Per 100g 70g votives @ 8%
15 gm ₹93.22 ₹621.47 ≈2
50 gm ₹271.40 ₹542.80 ≈8
100 gm ₹502.68 ₹502.68 ≈17
500 gm ₹2,513.40 ₹502.68 ≈89
1 kg ₹5,026.80 ₹502.68 ≈178
₹28.15 of oil per 70 g votive at the 100 gm rate Buy Sandalwood oil
Running the split on two waxes side by side? Luxury Soy Wax Chunks 500 g at ₹299 and CSI 464 500 g at ₹260 give you two arms on two waxes for under ₹560 of wax. Recurring volumes, GST invoicing and documentation are handled on WhatsApp.
Ask for bulk pricing

Reading the result: four outcomes and what each one means

The best thing about a properly designed split test is that every possible answer is useful, including the boring one.

Add the six scores in each arm at each checkpoint. Four patterns cover almost everything you will see, and each one tells you exactly where your next afternoon goes.

Four outcomes · what to do next in each case
The arm totals, what they point to, and the next test to run
Pattern What it points to What it costs to act on Your next test
Arm A clearly better at checkpoint 1 and stays better A real preparation effect Seconds per jar, forever — so cost it per candle before you commit Narrow it down: washed versus wiped versus untouched, three arms, one pot
Both arms equally patchy at every checkpoint Preparation is not your lever; conditions or contraction are ₹0 — you have saved yourself a labour step Glass temperature at pour: warmed against room-temperature jars, same minute
Both arms clean at checkpoint 1, both patchy by checkpoint 3 Temperature movement after the pour, not the glass Storage and packing decisions, not raw materials A recorded hold-and-move cycle with photographs at fixed points
Scores scattered with no arm pattern but a position pattern Cooling position — outer jars, a draught, a cold surface ₹0 to rearrange a bench Mark four faces on each jar and run the orientation test

Two of those four outcomes cost you nothing to act on, and all four leave the wax alone. That is the honest arithmetic of this subject: the levers are ordered by cost, the cheap ones are numerous, and the expensive one — a different wax — belongs at the end of a documented process, not at the start of a panic. If you do reach that point, the way to do it properly is candidate waxes in your actual jar, on the same day, scored on the same sheet, with a pilot before a bulk buy. The one-sided and middle-band patterns have their own posts: one side only and a band around the middle.

You are not trying to find out what is wrong with your candle. You are trying to find out which of two innocent-looking suspects you can eliminate for ₹1,283.83.
— CandleMakingSuppliesIndia
Why trust this guide

CANDLEMAKINGSUPPLIESINDIA supplies raw materials, not finished candles. The sale we are declining on this page is obvious: a 10 kg bag of a different wax, which is four to five times what the split test costs and far more profitable for us. We are telling you to spend ₹1,283.83 finding out which lever matters, because a maker who fixes the real cause carries on pouring and a maker who replaces wax on a hunch usually stops.

Every price and pack size on this page comes from live CSI stock in September 2026 and links to the product page, where current pricing always takes precedence. Specifications are quoted only where the page states them: the Luxury Soy Wax Chunks load, add temperature, two pour statements and cure guidance; the Clear Glass Votive Jar's stated "Capacity: ~70g wax fill". Two facts here are absences and they are stated as absences, because they are the reason this guide is a test rather than a procedure: no CSI container page gives a washing, wiping, drying or preheating instruction, and no CSI wax page publishes an adhesion measurement — only CSI 464 and CSI 468 mention glass adhesion at all, and both do so as wording with no figure, method or threshold. Luxury Soy Wax Chunks, Natural Soy Pearl Wax and Coconut Wax are silent on appearance and adhesion. No contraction rate, coefficient, adhesion score, threshold temperature or accelerated-to-real-time conversion is published by CSI and none is invented here.

For help designing a test for a specific jar, bulk pricing, GST invoicing, MSDS or IFRA documentation, message us on WhatsApp at +91 7397976926.

Frequently asked questions

Should I wash candle jars before pouring?
Test it before you commit to it. No CSI container page states a washing or drying procedure, so there is no spec to follow — and at volume, ten seconds a jar is nearly three hours of labour across a 1,000-candle run. Run the split: six jars washed and completely dried, six exactly as received, one pot, one pour, interleaved on one tray, scored at the same three checkpoints. If the washed arm is clearly better, the step has earned its minutes. If not, you have just saved them.
How can I tell wax shrinkage from dirty glass?
Not from one candle. There are tendencies — contamination often gives small, sharply outlined patches that repeat in the same places, contraction often gives larger, soft-edged areas that vary jar to jar — but they overlap enough that a photograph proves nothing. The reliable method is the paired split test described on this page: twelve jars, one pot, two arms, three checkpoints. Design the comparison and the answer appears; inspect a single jar and you will only confirm what you already suspected.
Why does my candle look patchy only in clear glass?
Because the patch is an air gap, and a gap is visible only where there is contrast to see it against. Light reflects at two surfaces in the gap instead of one at a bonded wall, which reads as dark or damp — and clear glass shows that perfectly, while frosted glass scatters it and matte glass hides it entirely. The gap is the same in all three vessels. For a diagnostic batch, keep clear glass: you cannot grade a defect you cannot see.
How many jars does a meaningful split test need?
Six per arm is a sensible minimum, which is why this test uses twelve. Fewer than that and a single odd jar swings the result; many more and the pour takes long enough that the pot temperature drifts, which quietly adds a second variable. Buy fifteen so you have spares, interleave the arms across the tray, and score every jar at all three checkpoints — twelve jars give you thirty-six observations, which is plenty to see a real difference.
Does a 70 gram votive jar really take 70 g of wax?
Its page states "Capacity: ~70g wax fill", which is a weight — and that is genuinely useful, because most CSI containers state capacity in millilitres instead and a millilitre is a volume, not a gram. For any jar stated in ml, weigh one filled jar on a ₹354 scale and plan from your own number. On the votive, a 70 g fill at an 8% load is 64.4 g of wax and 5.6 g of oil.
What does the 12-jar split test cost?
₹1,283.83 of materials, or ₹106.99 per test candle: 772.8 g of Luxury Soy Wax Chunks at ₹462.91, 67.2 g of Sandalwood Fragrance Oil at ₹337.80, twelve clear votives at ₹382.32, twelve Thin (C1) wicks at ₹70.80 and twelve stickers at ₹30. The cart is ₹1,797.58 and leaves three spare jars, eight spare wicks and leftover wax and oil. A 10 kg bag of replacement wax is ₹5,074 to ₹6,370 — four to five times as much, before you re-test wick and load.
Design the comparison, not the diagnosis
Twelve clear votives, one pot, two arms, three checkpoints — and you will know whether washing jars is worth your minutes.
Clear Glass Votive Jars 70 gram at ₹31.86 each, Luxury Soy Wax Chunks from ₹299 for 500 g with a stated 70–80°C pour and 8–13% load, Sandalwood Fragrance Oil 100 gm at ₹502.68, Eco Candle Wicks Thin (C1) at ₹5.90 each and a Candle Making Weighing Scale at ₹354. Message us for bulk pricing, GST invoicing and documentation.
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Editorial standards & sources
About this guide: Written by the CANDLEMAKINGSUPPLIESINDIA team. Product recommendations reflect the CSI range; the two-arm split design, the three checkpoints and the four outcomes apply to any supplier's wax and any clear vessel.

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; one longer review is shortened with an ellipsis and otherwise unedited.

Figures verified September 2026: Luxury Soy Wax Chunks for Jar / Container Candles — 500 g ₹299, 1 kg ₹599, 5 kg ₹2,995, 10 kg ₹5,999; stated "up to 13% fragrance load capacity", "Recommended fragrance load: 8% to 13% of total wax weight", "10% Recommended", "Recommended fragrance add temp 80-90°C", pour temperature stated two ways on the same page as "Recommended pour temp 75-80°C" and "Pour at 70-80°C", cure "a minimum of 48 hours (ideally 1-2 weeks) before performing burn tests"; melt point not stated; silent on adhesion and appearance. Clear Glass Votive Jar 70 gram — pack of 5 ₹159.30, pack of 10 ₹318.60 (₹31.86 per jar); stated "Capacity: ~70g wax fill"; no dimensions stated, and the page body also refers to matte finishes. Sandalwood Fragrance Oil — 15 gm ₹93.22 (₹6.21/g), 50 gm ₹271.40, 100 gm ₹502.68 (₹5.0268/g), 500 gm ₹2,513.40, 1 kg ₹5,026.80. Eco Candle Wicks Thin (C1) — 10 wicks ₹59, 20 wicks ₹118 (₹5.90 each). Candle Wick Stickers 1 sheet of 40 ₹100 (₹2.50 each). Candle Making Weighing Scale ₹354. Luxury Soy Wax CSI 464 500 g ₹260, 10 kg ₹5,074 and Premium Coconut Soy CSI 468 10 kg ₹6,370 are quoted as the cost of the wax change this test is designed to defer; they are also the only two CSI wax pages that mention glass adhesion, as wording rather than measurement. Stated absences: none of CSI's 74 listed containers states a washing, rinsing, wiping, drying or preheating instruction; no CSI wax page publishes an adhesion figure, test method or threshold temperature; Luxury Soy Wax Chunks, Natural Soy Pearl Wax and Coconut Wax state nothing about appearance or adhesion. Planning assumptions, labelled: fragrance load is calculated as a share of the finished candle, so a 70 g votive at 8% is 64.4 g of wax and 5.6 g of oil (the Luxury Soy Wax Chunks page states its own load as a percentage of total wax weight; both conventions exist and this page states which it uses). Wax cost per votive = 1 kg price ÷ 1,000 × 64.4 g = ₹0.599 × 64.4 = ₹38.58; oil cost per votive = ₹5.0268 × 5.6 = ₹28.15. Test consumption: 772.8 g wax at ₹462.91, 67.2 g oil at ₹337.80, 12 jars at ₹382.32, 12 wicks at ₹70.80, 12 stickers at ₹30, total ₹1,283.83, or ₹106.99 per test candle; cart ₹599 + ₹502.68 + ₹477.90 + ₹118 + ₹100 = ₹1,797.58. One wick per single-wick candle. Checkpoint timings and the temperature-cycle hold are the maker's own choices, recorded, and no accelerated-to-real-time conversion is offered. Prices and availability change — the linked product pages are always authoritative.
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