Why Does My Candle Have Dark-Looking Patches Between the Wax and Glass Even Though There Is No Liquid Inside the Jar?

Why Does My Candle Have Dark-Looking Patches Between the Wax and Glass Even Though There Is No Liquid Inside the Jar?

 

Soy wax from ₹260 / 500g · ₹399 / 1kg 200ml glass jars from ₹29.50 each Stocked in India · ships nationwide
CSI diagnostic guides · glass adhesion
There is nothing behind the glass but air. The dark patch is what air looks like when it has nowhere to go.
★★★★★
"Nice glass jars, they look cute. I like the packaging as well."
AshwiniSep 2025
White Matte Glass Jar
★★★★★
"Soy wax quality is the best, which ever products ordered were properly packed and delivered as early as possible, timely response to the inquiries. Good service"
Jaya SawlaniVerified buyer · Nov 2025
Luxury Soy Wax CSI 464
★★★★☆
"Good quality wax"
Arminder KaurVerified buyer · Oct 2025
Eco Soy CSI 400
★★★★★
"Cute jars, I like it."
AshwiniSep 2025
White Matte Votive Jar 70 gram
★★★★★
"the quality of luxury soy wax and pillar candle wax is very good, and the packaging is also nice and clean…"
Mahak agarwalSep 2024
Soy Pillar Wax
★★★★★
"Nice glass jars, they look cute. I like the packaging as well."
AshwiniSep 2025
White Matte Glass Jar
★★★★★
"Soy wax quality is the best, which ever products ordered were properly packed and delivered as early as possible, timely response to the inquiries. Good service"
Jaya SawlaniVerified buyer · Nov 2025
Luxury Soy Wax CSI 464
★★★★☆
"Good quality wax"
Arminder KaurVerified buyer · Oct 2025
Eco Soy CSI 400
★★★★★
"Cute jars, I like it."
AshwiniSep 2025
White Matte Votive Jar 70 gram
★★★★★
"the quality of luxury soy wax and pillar candle wax is very good, and the packaging is also nice and clean…"
Mahak agarwalSep 2024
Soy Pillar Wax
Reviews collected and published through Judge.me on candlemakingsuppliesindia.store. One longer review is shortened with an ellipsis; wording is otherwise unedited.
Shop containers — from ₹29.50 per jar Ask about jar finishes
✓ Stated jar dimensions quoted per page ✓ 78 containers listed ✓ Bulk pricing & GST invoicing on WhatsApp
Candle Business Guides · Glass Adhesion
Because the patch is not a stain, it is a shadow. Where wax has contracted off the wall there is an air gap, and an air gap turns one wax-to-glass boundary into two reflecting surfaces — wax-to-air, then air-to-glass. You are seeing light bounce twice instead of once, which the eye reads as damp. Nothing in the jar is wet, and nothing has leaked.
2 surfaces
an attached wall has one optical boundary; a gap has two, and two is what looks dark · same gap, visible at ₹94.40 a jar in clear glass and almost invisible at ₹70.80 in frosted · CSI live pricing, September 2026
Quick answers — read this first
If there is no liquid, why does it look wet? A "wet" look is really a reflection look. Where wax touches glass you see through a single clean interface. Where there is an air gap you get a wax-to-air surface and an air-to-glass surface, both reflecting, and the patch goes grey, silver or dark depending on the light.

So what is physically in the patch? Air. Soy contracts as it solidifies, and where it pulls off the wall a thin void opens. It is sealed in: you cannot wipe it, dry it or seal it out, which is exactly why every moisture remedy fails.

Why does it change through the day? Because the look depends on the angle and quality of the light, not on the gap. The same candle reads worse under a single warm lamp at night and better in flat daylight. Photograph it under one fixed light or you will chase a defect that is partly your room.

Will a different jar finish fix it? It will hide it, completely in matte and largely in frosted glass, because a diffusing or opaque surface removes the contrast the gap needs. Whether hiding it is the right commercial answer is a separate decision, and this cluster has a post for it.
The short answer
The patch is an optical effect, not a contaminant: an air gap between wax and glass reflects at two surfaces instead of one. That is why it has no smell, no feel, no weight and no wipeable residue.
Its appearance is a property of your lighting as much as your candle: grade every batch under the same single light source, at the same distance, against the same background, or your reject rate will move with the weather.
Your customer is reading "oil" or "damp" because the word they know is "wet spot": give them one sentence that explains the air gap and they usually stop seeing a defect and start seeing a material.
Shop: Containers · Candle Wax · Candle Wicks · Packaging · bulk on WhatsApp.
In this guide
Looking through the wall of the same jar, 2 cm apart ATTACHED glass wax 1 boundary: glass to wax You see the wax colour. Nothing to reflect at. GAPPED — the "wet spot" glass air wax 2 boundaries glass to air, then air to wax. Both reflect. It reads dark, silver or damp.
Two centimetres apart on the same jar, the same wax and the same glass look completely different — because on the right there is a layer of air in between. The wax has not changed. Only the number of surfaces light has to cross has changed.
Diffusing surface · 200 ml
Clear Frosted Glass Jar · ₹70.80 a jar
States a one-pour finish
Eco Soy CSI 400 · 1 kg ₹399
Choosing a finish?
Message CSI on WhatsApp
Straight answer
If there is no liquid in the jar, what is the dark patch made of?
Air. The patch is a thin, sealed void where the wax has contracted away from the glass, and everything odd about how it looks follows from that one fact. Where wax and glass are in contact, light crosses a single boundary and you see the wax more or less as it is. Where there is a gap, light crosses two — glass to air, then air to wax — and each of those surfaces reflects some of it back. The result is a patch that looks darker, greyer or shinier than its surroundings, that changes as you tilt the jar, and that disappears from certain angles entirely. Those three behaviours are signatures of a reflection, not of a substance: a smear of fragrance oil or a film of condensation would stay put as the angle changed and would have a definite edge. This also explains why the patch has no weight, no smell and nothing to wipe — and why the remedies people reach for cannot work. You cannot dry out air, and you cannot seal a jar that is already sealed. What you can do is reduce the contrast that makes the gap visible, by moving to a diffusing or opaque vessel such as a Clear Frosted Glass Jar at ₹70.80 a jar or a White Matte Glass Jar at the same price — or reduce the gap itself by working the cheap process variables first: jar cleanliness, glass temperature, pour temperature and cooling position, in that order, before anyone touches the wax.
One line: the patch is air, two reflecting surfaces instead of one — so it is an appearance problem with optical fixes and process fixes, and no moisture fix at all.
Want to see the effect for yourself in one afternoon? Pour the same wax into a clear and a frosted jar. 200ml Salsa Glass Jars from ₹29.50 each at 50 and Clear Frosted Glass Jars at ₹70.80 each make that comparison cheap.
Shop containers

One boundary becomes two

Candle makers spend years fighting a defect that is, strictly speaking, a trick of the light.

Hold a clean glass jar up to a window, empty. You can see straight through it, because light passes from air into glass and out again with very little fuss. Now fill it with soy wax that has set in full contact with the wall. You still see something clean: a single glass-to-wax boundary, and behind it the colour of the wax. There is no reason for a dark band to appear anywhere, and in a perfectly adhered jar none does.

Introduce a gap and the geometry changes. Light now meets glass, then air, then wax — two boundaries instead of one, and at each one a portion of the light is reflected back towards you rather than continuing on. Those reflections are what reach your eye as a patch. Whether it reads as dark, as silvery or as a faint oily sheen depends entirely on where the light is coming from, how diffuse it is, and what is behind the jar. Which is also why no two photographs of the same defect ever quite agree.

Three consequences follow, and all three are useful in a workshop.

Optical effect vs contaminant · four behaviours that distinguish them
What a gap does, what a liquid would do, and how to tell in ten seconds
Behaviour An air gap (what you have) Fragrance oil or condensation (what the name implies) How to check
Angle dependence Shifts shade, flares or vanishes as you rotate the jar Stays in place; moves only if it runs Rotate the jar slowly under one lamp and watch one patch
Edge quality Soft, map-like, often following the contour of the wall Sharp meniscus or a defined run-mark Look at the boundary of the patch, not the middle
Response to warmth in the hand Can shift slightly as wax expands back towards the glass A liquid would spread, not retreat Hold the jar for two minutes, photograph before and after
Anything on the outside Nothing — the gap is inside a sealed vessel Tissue picks up a mark Press a clean tissue to the glass and to the wax surface
The mistake: reducing fragrance load to cure a dark patch. It is the most common misdiagnosis in this whole subject, because "oily-looking" leads straight to "too much oil". Dropping from 8% to 6% does two things: it changes the throw you had already approved, and it leaves you unable to tell whether the next batch improved because of the load or because the weather changed. If you suspect the oil is involved — and it legitimately can be — test it properly with an unscented control jar poured from the same pot, and keep your production load alone until that control tells you something. The fragrance posts later in this cluster take this apart in detail.

The second consequence is that contrast, not gap size, decides how bad your candle looks. A large gap behind a diffusing surface can be genuinely hard to find; a small one behind flat, polished, perfectly clear glass can look like a crack. This is why two makers with the same wax, the same oil and the same process can disagree completely about whether they have a problem — they are looking through different glass.

The third is that the defect is cosmetic. An air gap at the wall does not by itself make a candle unsafe and does not change the way it burns. That is not permission to ship anything; it is a statement about which department the problem belongs to. It belongs to appearance and brand standards, not to safety. Real safety faults are a separate and much shorter list — cracked or chipped glass, a wick leaning on the wall, a wick that clogs, a jar that gets too hot to hold — and candles with those do not go out of the door.

Reading a patch with your eyes alone

Before you change anything, get more out of looking. The shape, position and edge of a patch carry information about where the wax lost contact, and it costs nothing to record. Register matters here: everything below is a could, to be confirmed by a paired test, never a verdict from a photograph.

Patch shape and position · what each pattern could point to
Five things to write down about every patch, and the post in this cluster that owns each one
What you observe What it could point to What would confirm it Where it is taken further
Large patches on one face, clean on the other Uneven cooling — a draught, a cold wall, or the jar's position on the tray Mark the jar faces before pouring and repeat with the faces rotated The one-sided-adhesion post in this cluster
A band around the middle, top and bottom attached The mid-wall losing heat differently from the base and the open top Band-map several candles and compare the same height on each The middle-band post in this cluster
Many small, sharply outlined specks Point-sized places the wax never bonded — residue, dust or handling marks Cleaned jars against as-received jars, one pot, one day The scattered-specks and contamination posts
Patches visible the moment the wax set, not later The glass temperature at the instant of pouring, or the pour temperature itself Half the batch warmed, half at room temperature, same minute The immediate-versus-delayed post
Nothing for a week, then patches Later temperature movement in the room or in transit One jar held in a stable room, one moved; photograph both at fixed checkpoints The after-a-week and transit posts
Grade against a print, not against memory
Print one sheet with a 1 cm grid and a second with three reference photographs you have taken yourself: a candle you would happily sell, one you would sell at a discount, and one you would not sell. Tape the grid behind the jar, shoot from a fixed distance under one lamp, and compare with the three references. The point is not precision — it is that two people in your workshop reach the same answer on the same candle, and that you reach the same answer in December that you reached in June.

Why the same candle looks different at 9pm

If your reject rate rises every evening, the candles are not getting worse. The lighting is.

Because the defect is a reflection, it is at the mercy of your light source. A single bare bulb or a warm spotlight gives hard, directional light, and hard light makes the two surfaces of a gap reflect strongly — patches look bigger, darker and more numerous. Flat, diffuse daylight through a north-facing window does the opposite. Put a sheet of white paper behind the jar and patches sharpen; put a dark cloth behind it and some of them disappear.

This is a real commercial problem, not a curiosity. A maker who grades a batch at night under one lamp and grades the next batch at noon by a window is running two different quality standards and will blame the wax for the difference. Fix the viewing conditions and a surprising amount of apparent batch-to-batch variation evaporates.

The mistake: photographing product shots under a spotlight and then being surprised by returns. Hard studio lighting is exactly the condition that maximises gap visibility — so the photograph you put on your website may show a defect your customer would never have noticed on their shelf, or the reverse: a soft, flattering light may hide one that becomes obvious in their kitchen. Shoot product under the light your customer will actually use, and shoot your QC frames under one fixed hard light so that your internal standard is the strict one. Two lighting setups, two purposes, both written down.

The same gap across six jar finishes

Here is the visibility ladder, built from containers CSI currently lists. The gap is identical in every row — what changes is how much contrast the vessel gives it. Prices are per jar at the listed pack sizes. Note the capacity column carefully: most of these jars state capacity in millilitres, not grams, so weigh one filled jar before you plan wax quantities rather than treating 200 ml as 200 g.

Visibility of an identical air gap by vessel finish · CSI live pricing, September 2026
Six listed containers, what their pages state, and how much contrast each gives a gap
Container Stated capacity Price per jar Surface How visible the same gap is
Clear Glass Jar with Golden Lid "150g fill capacity" ₹94.40 at 10 or 20 Clear, described as thick-walled Maximum — every patch, every edge
200ml Salsa Glass Jar with 63mm Lug Cap "The 200ml capacity" ₹40.12 at 5 · ₹29.50 at 50 and 100 Clear, straight wall Maximum, and across a tall straight face
Apothecary Glass Candle Jar with Dome Lid "Fill capacity: ~500 g - 700 g (2 sizes)" ₹212.40 at 500 gm · ₹250 at 700 gm Clear, thick-walled, curved silhouette High, but the curve breaks patches up
Amber Shiny Glass Jar with Black Lid "Capacity: 120 gm" ₹47.20 at 1 or 5 Coloured, glossy Reduced — colour eats the contrast
Clear Frosted Glass Jar "fill weight of 200 ml" ₹70.80 at 5 or 10 Frosted, diffusing Low — the surface scatters before the gap can
White Matte Glass Jar "fill weight of 200 ml" ₹70.80 at 5 or 10 Opaque matte None — you cannot see the wall at all
Priced above: Clear Glass Jar with Golden Lid pack of 10 ₹944 and pack of 20 ₹1,888 → ₹94.40 each · 200ml Salsa Glass Jar 5 Pcs ₹200.60 → ₹40.12 each, 50 Pcs ₹1,475 and 100 Pcs ₹2,950 → ₹29.50 each · Apothecary Glass Candle Jar with Dome Lid 500 gm ₹212.40 and 700 gm ₹250 · Amber Shiny Glass Jar with Black Lid pack of 1 ₹47.20 and pack of 5 ₹236 → ₹47.20 each · Clear Frosted Glass Jar and White Matte Glass Jar pack of 5 ₹354 and pack of 10 ₹708 → ₹70.80 each. CSI live pricing, September 2026.

Two numbers in that table deserve a second look. The Salsa clear jar is the only container here with a genuine step-down: ₹40.12 each in fives against ₹29.50 each at fifty and a hundred, a difference of ₹10.62 per jar. Buy a hundred as five-packs and you pay ₹4,012; buy the hundred-pack and you pay ₹2,950 — ₹1,062 less for the same glass. And it is the cheapest clear jar listed, which makes it the sensible vessel for an adhesion test you intend to repeat, because you are going to pour a lot of jars you do not sell.

The visibility ladder is not, by itself, a recommendation. Moving from clear to frosted glass is a legitimate commercial decision and sometimes the cheapest and lowest-risk one available, especially on a candle that already burns well. But it is a decision about what you sell, not a diagnosis, and it belongs in a conversation about brand and price rather than in a troubleshooting checklist. The frosted-jar question has its own post in this cluster.

The five-minute demonstration for a customer who thinks it is oil

Most of the commercial damage from adhesion patches is done by the explanation, not the patch. A customer who thinks they have been sold a leaking, damp or cheaply made candle asks for a refund. A customer who understands they are looking at a natural wax moving against glass usually does not. Here is a demonstration you can run at a stall, on a video call or in a reel, with no equipment beyond what is in your hand.

1
Name it correctly in the first sentence"That dark area is not moisture — it is a tiny pocket of air where the natural wax has shrunk slightly away from the glass." Say it before they ask. The word "wet spot" is the problem; do not introduce it, and if they do, correct it gently rather than agreeing.
2
Rotate the jar in front of themTurn it slowly under the light and let them watch the patch change shade and shrink. Nothing that is wet behaves like that. This single movement persuades more people than any paragraph, because they see the reflection appear and disappear.
3
Invite them to touch the glass and the wax surfaceDry glass, dry wax. If you have a tissue, press it to both. Nothing transfers. A candle whose oil was separating out would mark the tissue immediately — and if yours does, that is a genuine formulation issue and a different conversation entirely.
4
Show the second jarKeep one candle in a Clear Frosted Glass Jar poured from the same batch. Same wax, same oil, same day — and no visible patches. It makes the optical point better than a diagram: the defect they are worried about is partly the glass they are looking through.
5
Say what it does and does not affectIt does not affect the burn, the scent or the safety of the candle. Say that plainly and do not oversell it. If your own standard is that a candle with large patches is sold at a discount or not at all, say that too — a maker with a written appearance standard sounds like a manufacturer, not an apologist.
6
Put two lines on the care card"Made with natural soy wax. Soy shrinks a little as it sets, so you may see pale or dark patches where it has lifted from the glass. This is the wax, not moisture, and it does not affect how your candle burns." Printed once, it answers the question before it is asked — and it turns the honest explanation into part of the brand rather than a defence.
The CSI principle
A defect you can explain in one sentence stops being a defect and becomes a material.
Marble has veins, linen creases, leather marks and soy lifts off glass. None of those are faults in the thing; they are faults in the description. Write the sentence, print it on the card, and you have converted a refund request into a reason the candle is handmade.

What to buy to see this properly

Three purchases make the optics visible rather than theoretical: a diffusing jar to prove the effect, and two waxes whose pages take different positions on appearance so you can see what a stated claim is and is not worth. Each card lists every pack, the live price and the maths.

1
The jar that proves it is optical
Clear Frosted Glass Jar (200 ml)
Buy five of these and pour them alongside five clear jars from the same pot on the same afternoon. If the frosted jars look clean and the clear ones do not, you have demonstrated the whole argument of this page in one batch — the gap is the same, the contrast is not. The page states a "fill weight of 200 ml" and dimensions of height 8 cm, width 7 cm; it gives no gram figure, so weigh one filled jar before you plan wax. Its own body copy calls it a matte jar, which is worth knowing before you photograph a product range.
Size Price Per piece
Pack of 5 ₹354 ₹70.80
Pack of 10 ₹708 ₹70.80
₹70.80 per jar at both listed pack sizes Buy the frosted jar
2
States a finish, silent on adhesion
Eco Soy CSI 400
The cheapest kilo in CSI's soy range at ₹399, and an instructive page to read against this topic. It states that the wax is "designed for smooth, creamy candles that set beautifully — often in just one pour", a melt point of 100°F (37.8°C), fragrance added at 85°C (185°F) with a two-minute stir, and Eco Wicks as the recommended wick. What it does not state is anything about glass adhesion or about the wall of the jar — and it states no pour temperature either, only that you pour directly after the stir. That silence is the honest reason a wax like this has to be qualified in your own vessel. One CSI buyer, Arminder Kaur, describes it simply as "Good quality wax".
Size Price Per kg 200g candles @ 8%
1 kg ₹399 ₹399 ≈5
5 kg ₹1,996 ₹399.20 ≈27
₹73.42 of wax per 200 g candle at 1 kg pricing Buy Eco Soy CSI 400
3
The widest stated pour window
Luxury Soy Wax Chunks for Jar / Container Candles
Worth having in this test for one reason: its page publishes the temperatures you will want to vary, while saying nothing at all about adhesion or appearance. Stated load 8% to 13% of total wax weight with 10% recommended, fragrance added at 80–90°C, and a pour temperature given two ways on the same page — "Recommended pour temp 75-80°C" in the details and "Pour at 70-80°C" in the how-to steps. Treat 70–80°C as the window and log your actual reading. The page also asks for a cure of a minimum 48 hours, ideally one to two weeks, before burn testing.
Size Price Per kg 200g candles @ 8%
500 g ₹299 ₹598 ≈2
1 kg ₹599 ₹599 ≈5
5 kg ₹2,995 ₹599 ≈27
10 kg ₹5,999 ₹599.90 ≈54
₹110.22 of wax per 200 g candle at 1 kg pricing Buy Luxury Soy Chunks
Pouring the clear-against-frosted comparison at production scale? 200ml Salsa Glass Jars drop to ₹29.50 each at 50 and 100, and soy wax runs from ₹399/kg for Eco Soy CSI 400 to ₹650/kg for CSI 468. Recurring volumes, GST invoicing and documentation are handled on WhatsApp.
Ask for bulk pricing

Where this leaves your next batch

Understanding the optics does two things for you immediately. It stops you buying remedies for a problem that has no liquid in it, and it tells you that you have two independent levers: reduce the gap, or reduce the contrast. They cost very different amounts and they are not alternatives — most makers end up using a little of both.

Two levers, side by side
Reducing the gap against reducing the contrast — what each costs and what each risks
Reduce the gap Reduce the contrast
What you change Jar cleanliness, glass temperature, pour temperature, cooling rate and position — then load, dye, jar, wax The vessel: coloured, frosted or matte glass, ceramic, tin, or an opaque label
Cash cost to try ₹0 for the first four levers if you own a thermometer ₹70.80 per 200 ml frosted or matte jar against ₹94.40 for the 150 g clear jar
Labour cost Warming glass is the one that really adds minutes per jar at scale None
What it risks Chasing the wall can hurt the top surface; changing load changes throw Changing the look of your brand, and losing the appeal of visible wax
How you prove it worked Paired test, same pot, same day, one variable, photographs at fixed checkpoints Pour both vessels from one pot and look — it is immediate
Where it goes wrong Changing two things at once, or jumping straight to a new wax Hiding a gap you have not measured, then losing the ability to grade batches

If you are going to work the process levers — and you should, before anything else — keep clear glass in the workshop for testing even if you sell in frosted. You cannot grade what you cannot see, and a ₹29.50 Salsa clear jar is the cheapest window into your own process that CSI lists. The diagnostic sequence itself, with the paired tests for each candidate, is laid out in the two-day timeline post, and the shrinkage-or-preparation split test is in the twelve-jar post.

You are not looking at a stain on the glass. You are looking at the shape of the air between two things that used to be touching.
— CandleMakingSuppliesIndia
Why trust this guide

CANDLEMAKINGSUPPLIESINDIA supplies raw materials, not finished candles. The easy sale on this page would be a different wax. Instead the honest answer is that the patch is air, that two of the cheapest things you can change are free, and that a ₹70.80 frosted jar will often do more for the look of your product than a ₹920 kilo of wax. We would rather you poured for years than replaced a bag on a guess.

Every price, pack size and dimension on this page comes from live CSI stock in September 2026 and links to the product page, where current pricing always takes precedence. Jar capacities are quoted exactly as the pages state them — and most of them state millilitres, not grams, which is why this guide tells you to weigh a filled jar instead of converting. Only 18 of CSI's 78 listed containers publish a numeric diameter at all, none publishes a glass thickness or an empty-jar weight, and two describe their glass as thick-walled. Where a page is silent we say so. No refractive index, contraction rate, adhesion score or threshold temperature is published by any CSI page, and none is invented here.

For help choosing a finish for a specific candle, bulk pricing on containers, GST invoicing, MSDS or IFRA documentation, message us on WhatsApp at +91 7397976926.

Frequently asked questions

What is actually inside a candle wet spot?
Air. It is a thin sealed void where the wax has contracted off the glass wall. Because light now crosses two boundaries at that spot — glass to air, then air to wax — instead of one, part of it reflects back and the area reads as dark, grey or damp. There is no water and no fragrance oil in the gap, which is why it has no weight, no smell and nothing you can wipe away from either side of the glass.
Why does the dark patch move or vanish when I turn the jar?
Because you are looking at a reflection, and reflections depend on angle. As you rotate the jar, the light hitting the two surfaces of the gap changes direction and the patch flares, fades or disappears. A liquid would not do this. It is the fastest free test available: rotate one jar slowly under a single lamp and watch one patch. The same effect is why the defect looks worse under a hard spotlight at night and better in flat daylight.
Do frosted or matte jars hide wet spots?
Yes — frosted glass largely and matte glass completely, because a diffusing or opaque surface removes the contrast the gap needs to be seen. At CSI, a Clear Frosted Glass Jar and a White Matte Glass Jar are both ₹70.80 per jar at the listed pack sizes, against ₹94.40 for the 150 g clear jar with a golden lid. Hiding a gap is a legitimate commercial choice, but keep clear glass in the workshop for grading — you cannot assess what you cannot see.
Is my fragrance oil separating out of the wax?
Not if there is nothing to wipe. Genuine separation shows as an oily film on the wax surface that marks a tissue, often with a wick that struggles. An adhesion patch is behind the glass, sealed, and transfers nothing. If you suspect the oil is involved in the gapping itself — it legitimately can be — test it with an unscented control jar from the same pot rather than cutting your production load, which would change the throw you already approved.
Does a 200 ml jar take 200 g of wax?
No, and do not plan as if it does. Most CSI containers state capacity in millilitres — the Clear Frosted Glass Jar, White Matte Glass Jar and Black Matte Glass Jar all state a "fill weight of 200 ml" with dimensions of height 8 cm and width 7 cm — and millilitres are a volume, not a weight. Weigh one filled jar on a ₹354 scale and use that figure for every calculation afterwards. Only some pages, such as the 150 g clear jar, state grams.
What should I tell a customer who thinks the candle is damp?
One sentence, said first: that dark area is a small pocket of air where natural soy has shrunk slightly away from the glass, not moisture. Then rotate the jar in front of them and let them watch the patch change — nothing wet behaves that way. Add that it does not affect the burn, the scent or the safety. Printing those two lines on a care card answers the question before it is asked and makes the honesty part of the brand.
Air, not oil
One boundary becomes two, and a candle that burns perfectly starts to look like a defect. Change the contrast or change the gap — but stop buying remedies for liquid.
Clear Frosted Glass Jars and White Matte Glass Jars at ₹70.80 each, 200ml Salsa clear jars at ₹40.12 in fives and ₹29.50 at fifty, Clear Glass Jars with Golden Lid at ₹94.40, Eco Soy CSI 400 at ₹399/kg and Luxury Soy Wax Chunks at ₹599/kg with a stated 70–80°C pour. Message us for bulk pricing on containers, GST invoicing and documentation.
Shop containers Ask CSI on WhatsApp
Continue the read
Editorial standards & sources
About this guide: Written by the CANDLEMAKINGSUPPLIESINDIA team. Product recommendations reflect the CSI range; the optical explanation, the visibility ladder and the customer demonstration apply to any supplier's wax and any glass 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: Clear Frosted Glass Jar — pack of 5 ₹354, pack of 10 ₹708 (₹70.80 per jar); stated "fill weight of 200 ml", "Height 8 cm width 7 cm"; page body also calls it a matte jar. White Matte Glass Jar and Black Matte Glass Jar — pack of 5 ₹354, pack of 10 ₹708 (₹70.80 per jar); both state "fill weight of 200 ml" and "Height 8 cm width 7 cm". Clear Glass Jar with Golden Lid (150 gram) — pack of 10 ₹944, pack of 20 ₹1,888 (₹94.40 per jar); stated "150g fill capacity", "Height 8cm, outer diameter 7cm", base diameter approximately 6.5 cm, "Safe for hot pour up to 85°C", described as thick-walled. 200ml Salsa Glass Jar with 63mm Lug Cap — 5 Pcs ₹200.60 (₹40.12 each), 50 Pcs ₹1,475 and 100 Pcs ₹2,950 (₹29.50 each); stated "The 200ml capacity provides ample space for crafting beautiful votive or single-wick candles"; 100 jars bought as five-packs = ₹4,012 against ₹2,950 for the 100-pack, a difference of ₹1,062. Amber Shiny Glass Jar with Black Lid — pack of 1 ₹47.20, pack of 5 ₹236 (₹47.20 each); stated "Capacity: 120 gm", "6 cm diameter, 6.5 cm height". Apothecary Glass Candle Jar with Dome Lid — 500 gm ₹212.40, 700 gm ₹250; stated "Fill capacity: ~500 g - 700 g (2 sizes)", outer rim diameter approximately 10 cm, "Safe for hot-pour up to 85°C", described as thick-walled. Eco Soy CSI 400 — 1 kg ₹399, 5 kg ₹1,996; stated "Melt Point 100°F (37.8°C)", fragrance added at "85°C (185°F), stir gently for 2 minutes, and pour directly", "Fragrance Add Temperature 80 to 90 degrees", "designed for smooth, creamy candles that set beautifully — often in just one pour", "Recommended Wick Eco Wicks"; no pour temperature and nothing on adhesion stated. Luxury Soy Wax Chunks — 500 g ₹299, 1 kg ₹599, 5 kg ₹2,995, 10 kg ₹5,999; stated "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"; silent on adhesion and appearance. Luxury Soy Wax CSI 464 1 kg ₹507.40 and Premium Coconut Soy CSI 468 1 kg ₹650 are the only two CSI wax pages that mention glass adhesion, both as wording rather than measurement. Candle Making Weighing Scale ₹354. Planning assumptions, labelled: fragrance load is calculated as a share of the finished candle, so a 200 g candle at 8% is 184 g of wax and 16 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 candle = 1 kg price ÷ 1,000 × 184 g: Eco Soy CSI 400 ₹0.399/g × 184 = ₹73.42; Luxury Soy Wax Chunks ₹0.599/g × 184 = ₹110.22. Jar capacities stated in millilitres are volumes, not weights, and are not converted here. No refractive index, contraction rate, adhesion score or threshold temperature is published by CSI and none is stated here. Prices and availability change — the linked product pages are always authoritative.
Back to blog