My 12 cm Candle Has a Perfect-Looking Melt Pool but the Jar Gets Hotter with Every Burn — Could Cumulative Container Heat Indicate Over-Wicking?

My 12 cm Candle Has a Perfect-Looking Melt Pool but the Jar Gets Hotter with Every Burn — Could Cumulative Container Heat Indicate Over-Wicking?

 

Eco C1 20 ₹118.00 · 10-pack out of stock Eco C2 10 ₹94.40 Weighing scale ₹354.00
12 cm jar · good pool · hotter every burn
Find out whether the heat is in the wicks or the jar before you change either.
★★★★☆
"Love the quality and scent notes. The lavender scent that I bought is selling fast"
Renam DhoundiyalVerified buyer · Apr 2026
Woody Oud Fragrance Oil
★★★★★
"Good quality wood fragrance oil with a warm, long-lasting scent and strong performance in candles."
Payal PatelVerified buyer · Mar 2026
Woody Oud Fragrance Oil
★★★★☆
"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
★★★★☆
"Good quality .... if possible delivery date would be try little bit quick please"
Subhankar RoyVerified buyer · Sep 2024
Eco Candle Wicks
★★★★★
"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 (Flakes Form) For Container Candles
★★★★★
"One of the best wax for container Candles. Easy to work with, especially if you are a beginner."
ThenirvaofficialVerified buyer · Nov 2025
Luxury Soy Wax CSI 464 (Flakes Form) For Container Candles
★★★★☆
"Love the quality and scent notes. The lavender scent that I bought is selling fast"
Renam DhoundiyalVerified buyer · Apr 2026
Woody Oud Fragrance Oil
★★★★★
"Good quality wood fragrance oil with a warm, long-lasting scent and strong performance in candles."
Payal PatelVerified buyer · Mar 2026
Woody Oud Fragrance Oil
★★★★☆
"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
★★★★☆
"Good quality .... if possible delivery date would be try little bit quick please"
Subhankar RoyVerified buyer · Sep 2024
Eco Candle Wicks
★★★★★
"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 (Flakes Form) For Container Candles
★★★★★
"One of the best wax for container Candles. Easy to work with, especially if you are a beginner."
ThenirvaofficialVerified buyer · Nov 2025
Luxury Soy Wax CSI 464 (Flakes Form) For Container Candles
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 Eco Candle Wicks — from ₹94.40 Send us your trend readings
✓ Prices verified 29 September 2026, stock checked per size ✓ MSDS and IFRA documentation on request on WhatsApp ✓ Raw materials only — CSI does not sell finished candles
CSI Wick Lab · 12 cm Jars
A jar that seems hotter every burn may be telling you about the wicks, the glass, or your routine. Read the same moment of every session, plot it against wax left, and the shape of the trend tells you which.
2 h
the fixed clock time for every reading, every session, to the stop line · CSI live pricing, September 2026
Quick answers — read this first
My 12 cm candle has a perfect melt pool but the jar gets hotter every burn. Is it over-wicked? Possibly for the lower part of the candle only. The way to tell is a trend: take the same readings at the same clock time in every session, two hours after lighting, and plot them against how much wax is left.

What do I read? Trimmed flame height, centre pool depth and a 0–3 glass observation score (by eye, never by touch), plus a non-contact reading if you own one. Weigh the candle before each session to know the remaining height.

How do I read the trend? If flame, depth and glass score all climb together once the candle is in its lower third, the wicks have more power than that depth needs: over-wicking for the lower zone. If the glass score climbs while flame and depth stay flat, the build-up is in the container. Then confirm with one rung down beside fresh controls.

What does confirming cost? Four 800 g candles, two on 3 × C2 and two on 3 × C1: ₹2,775.81 in materials, jars and scale not included. Stop every burn with about 1 cm left.
The short answer
The method: a per-session trend chart: identical readings at fixed clock times in every session (flame and glass at 2 h, depth at extinguishing), plotted against remaining wax height worked out from weight.
The readings: trimmed flame height, centre depth, a 0–3 glass observation score; a non-contact reading only if you own one (CSI lists none, and no limit is implied).
The reading rule: all three rising together in the lower third = over-wicking for the lower zone; glass score rising alone = container behaviour; everything high from the start = over-wicked throughout.
The honest limits: CSI lists no 12 cm jar and publishes no wick-performance data; we set no glass-temperature threshold, and this post is not a glass-safety test.
Shop: Eco Candle Wicks C1/C2 · Candle Making Weighing Scale · Woody Oud Fragrance Oil · Luxury Soy Wax CSI 464 · all candle wicks
In this guide
Same clock, every session: the trend that shows build-up Worked example, illustrative readings · 800 g, Woody Oud 8%, jar 11.3 cm inside · each dot is one session: flame and glass at 2 h, depth at extinguishing · x = remaining wax height from the candle's weight · shaded = lower third 3 × C2 (current) 3 × C1 Trimmed flame height at 2 h (cm) 0 1 2 3 4 5 6 lower third Centre pool depth at extinguishing (mm) 0 6 12 18 24 Glass observation at 2 h (0–3) 0 1 2 3 0 = clear 3 = stop 9 8 7 6 5 4 3 2 1 remaining wax height, cm (from weight) → stop line at about 1 cm
A per-session trend chart, worked example with illustrative readings. Each dot is one session (flame and glass read two hours after lighting, depth at extinguishing), placed by how much wax was left. On 3 × C2 (solid) the flame, depth and glass score are flat through the top two thirds and climb together in the lower third; on 3 × C1 (open) they stay nearly flat. Rising together means the wicks are over-powered for the lower zone. Your readings will differ; the shape is what you read.
One rung down · C1 20 ₹118.00 · C2 10 ₹94.40
Eco Candle Wicks: 3 × C1 beside fresh 3 × C2, read at the same clock time
Remaining height from weight · ₹354.00
Candle Making Weighing Scale: the x-axis of your trend
WhatsApp +91 7397976926
Send your per-session readings and we will help you read the trend
Straight answer
My 12 cm candle has a perfect-looking melt pool but the jar gets hotter with every burn. Could cumulative container heat indicate over-wicking?
It can, but "hotter every burn" has more than one cause, and a trend separates them. As a candle burns down, more glass stands above the pool and absorbs heat, the pool sits closer to the base, and the flame can grow; these are common tendencies in container candles. A candle whose wicks are right for the top can therefore be over-powered for its lower third. To find out, take the same readings at the same clock times every session (we read flame and glass two hours after lighting, and depth at extinguishing): trimmed flame height, a 0–3 glass observation score and centre pool depth, with flame and glass judged by eye and never by touch, plus a non-contact reading only if you own one. Weigh the candle before each session and plot every reading against remaining wax height. If flame, depth and glass score all climb together once the candle enters its lower third, the wicks have more power than that depth needs: over-wicking for the lower zone. If the glass score climbs while flame and depth stay flat, the build-up is in the container, and smaller wicks may not fix it. Confirm the first reading with two fresh candles on your current wicks and two one rung down, logged the same way to about 1 cm left.
One line: read flame, depth and glass at the same clock time every session, plot them against remaining wax, and let the shape of the trend say wick or container.
The trend costs nothing to start: your existing candle, a ruler, a marked stick and a scale you may already own. The confirming run needs six C1 (₹118.00 for 20) and six C2 (₹94.40 for 10).
Eco C1/C2 — from ₹94.40

What "hotter every burn" can mean

A candle doesn't keep the same shape as it burns. Neither does the heat inside the jar.

In the first sessions of a 12 cm candle the pool sits near the rim, the glass above it is short, and most of the jar is cool wax. By the lower third, several centimetres of bare glass stand above the pool, the pool is close to the base, and the wax below the flame is thin. Commonly, as the level falls, the glass above the pool absorbs heat, the pool can deepen and the flame can grow. Three different things can make the jar seem hotter each time, and only one of them is a wick problem.

The wicks are over-powered for the lower zone. They suit the top, but as the candle gets shorter the same flames meet less wax and more stored heat, so flame and pool climb. The container stores and returns heat. A tall column of glass, a thick base or a jar that narrows towards the bottom can raise what you observe at the glass even when the flame and pool behave. The method changes. Longer sessions, shorter rests, warmer afternoons and lapses in trimming all make later burns look hotter. Why a narrowing jar burns differently is a container question; the rest-interval test that separates stored heat from wick size in an 8 cm jar is the 8 cm lower-third post. This post's tool is the trend.

Mistake: touching the glass at the end of each burn to see whether it is "hotter than last time". Why it fails: touch is unsafe on a burning or just-extinguished candle, and it is also unreliable: it measures your hand as much as the glass. Fix: observe flame-to-glass distance, haze and soot, and if you own a non-contact thermometer, read it at a marked height. CSI lists no non-contact thermometer, the Pen Thermometer is for wax, not glass, and no figure here is a safety limit. For glass safety itself, see the hot-jar post.

The same-clock rule

Readings only form a trend if they are taken at the same moment in every session.

A candle at 30 minutes and the same candle at 3 hours are different candles. If you read flame and depth whenever you happen to look, the "trend" is mostly your timing. So fix the clock times and keep them for the whole life of the candle. We read flame and glass two hours after lighting, and depth at extinguishing: two hours is late enough for the pool to have formed in a jar 11.3 cm inside, early enough to read safely in every session. Start every session the same way (fully cooled to room temperature, wicks trimmed to about 5–6 mm, fan and AC off) and keep sessions the same length, about four hours (the rough hour-per-2.5 cm rule suggests about 4.5 h for a full pool at this width).

The session log · one row per session
Every reading at the same clock time · our method, labelled · burn within sight, in still air, and stop at about 1 cm left
Reading When How What a rise means
Remaining weight Before lighting Scale, candle and jar, minus empty jar Gives remaining height (the x-axis)
Trimmed flame height 2 h after lighting Ruler held beside, not over, the jar Rising in the lower third = more fire than that depth needs
Centre pool depth At extinguishing (4 h), every session Marked bamboo stick or steel ruler dipped straight down right after snuffing Rising = heat accumulating in the pool
Glass observation, 0–3 2 h 0 flame well clear, no change; 1 flame closer, glass looks hazier above the pool; 2 flame within about a finger's width of the glass or soot on it; 3 flame near the glass: stop Our labelled scale; by eye, never by touch
Non-contact reading (optional) 2 h, same height mark Only if you own a non-contact thermometer; CSI lists none Plot the trend only; no limit is implied
Room temperature and fan At lighting Thermometer on the wall; fan and AC off A hot afternoon can mimic a trend

The glass score is deliberately coarse. Four steps you can apply the same way every time beat a precise-sounding number you can't. If you own a non-contact thermometer, its readings belong on the chart as a fourth trend, read at the same marked height each time, but treat it as a trend only. A depth chart for a single wick is the deep-pool post; here depth is one of three lines read together.

One candle, one clock
If a session runs short (you had to go out at 90 minutes), log it as missed rather than reading at a different time. A gap in the chart is honest; a reading at the wrong clock time is noise that looks like data.

Plotting the trend against remaining height

Plot by wax left, not by session number. The lower third is a height, not a date.

Session numbers mislead because sessions burn different amounts. What matters is how far down the candle is, so put remaining wax height on the horizontal axis. The scale gives it: weigh the candle and jar before lighting, subtract the empty jar's weight, and divide the remaining grams by the grams per centimetre of height. At 11.3 cm inside, each centimetre holds roughly 88.3 g of wax (pool area 100.29 cm² × 0.88, a rule-of-thumb factor), so an 800 g fill is about 9.1 cm tall in a straight-sided jar, and 400 g remaining is about 4.5 cm. Confirm with a ruler from the rim once or twice; the two should roughly agree.

Mark the lower third on the chart: below about 3.0 cm here, or once about 267 g of the fill remains. Then plot each reading as a dot at its remaining height, one panel per reading, with the same horizontal axis. The diagram shows the worked example: an 800 g candle on 3 × C2 at 8% Woody Oud, and the same candle on 3 × C1, with illustrative readings. On C2, nothing moves for two thirds of the candle; then flame, depth and glass score climb together. On C1 they barely move. That is what over-wicking for the lower zone looks like on paper.

Mistake: reading the trend from a single session at the bottom of the jar. Why it fails: one hot session can be a warm afternoon or a long burn. A trend needs several points in the upper zone to define "flat", and several in the lower third to define "rising". Fix: log from burn 2 to the stop line; read the shape, not the last dot.

Five trend shapes and what each says

The shape of the lines, not their height, separates the wick from the jar.
Reading the trend chart
Flame and glass at 2 h, depth at extinguishing, plotted against remaining height · "rise" = a clear, sustained climb across several sessions · our judgement, labelled
Trend shape What it usually means Next step
Flat through the top two thirds, then flame, depth and glass all rise together The wick system has more power than the lower zone needs Over-wicking for the lower zone: run one rung down beside fresh controls
Glass score rises; flame and depth stay flat Heat is building in the container, not the pool: glass column, thick base or jar shape Container behaviour: shorter sessions, a higher stop line, or the jar itself (container shape)
Everything high from the first sessions Over-wicked everywhere, not a cumulative effect A full-candle step-down, not a lower-zone question
Jumps up and down from session to session Inconsistent clock, trim, rest or room Fix the method before reading anything
Everything flat to the stop line No cumulative build-up in the candle's readings The feeling of "hotter" was perception; keep logging, change nothing

The first two rows are the ones the title is asking about, and the difference between them is whether the wick-side readings move. Flame height and pool depth are what the wicks control. If they climb in the lower third, the flames are working harder on less wax: the wicks are over-powered for that depth. If they stay flat while the glass score climbs, the flames are behaving and the jar is the variable, so a smaller wick may cost you top-zone performance without fixing the glass. For a multi-wick candle, also glance at the triangle: wicks placed too close together make a hot centre at every depth, which shows as a high depth line from the start rather than a late rise (the triangle-spacing post).

What trend shapes can't do is approve a jar for sale. A glass score of 3 means stop the session, whatever the cause; how to judge glass heat in the final burn is the hot-jar post. The trend tells you where to look next.

The confirming run: one rung down, same clock

One candle's trend is a strong hint. Two fresh controls and two one rung down make it an answer.

If your trend reads as over-wicking for the lower zone, pour four candles from one melt: two on your current wicks (3 × C2 in the worked example) and two one rung down (3 × C1), identical in every other way. Woody Oud at 8% in CSI 464, an 800 g fill (64 g oil, 736 g wax) in four jars from one batch, placed from one template. The fresh controls matter: they show whether the rise repeats, and they share the C1 candles' cure, room and calendar.

1
Pour and weighFour candles from one melt; write each empty jar's weight on its base before pouring. Place the wicks from one template and check the triangle after setting.
2
Cure togetherAbout a week, side by side; the oil page says to cure soy candles 48–72 hours before burn testing, and a week is common practice.
3
Same clock, every sessionWeigh, trim, light; read flame and glass score at exactly 2 h; extinguish at 4 h and read centre depth straight away. Same rest between sessions for all four.
4
Plot as you goOne chart per arm, x = remaining height from weight. Mark the lower third before the candles reach it, so you are not tempted to move the line afterwards.
5
Watch the top zone tooOn burns 2–3, note whether the C1 candles reach the glass. A lower-zone fix that tunnels at the top isn't a fix.
6
Run to the stop lineEvery candle to about 1 cm left; stop any session at a glass score of 3. Then compare the shapes.

In the worked example the C2 candles burn out in about 10 sessions and the C1 candles in about 12 (at illustrative rates of 18 and 15 g an hour, 39.5 and 47.4 hours to the stop line from 712 g burnable). With one session a day and a week of cure, the run takes about 19 days.

Reading the confirming run
Two candles per arm, same clock, plotted against remaining height · our judgement, labelled
What you see What it means Decision Purchase
3 × C1 stays flat in the lower third and still reaches the glass by burn 3 in the top zone The current wicks were over-powered for the lower zone only Move to 3 × C1; carry both to full life again for approval C1 100-pack (₹590.00) after full life
3 × C1 stays flat low down but leaves wax at the glass in the top zone No single size suits both ends of this candle A trade-off: a stop line, a session label or fill height; see the life-cycle post Nothing yet
3 × C1 rises in the lower third just like 3 × C2 The build-up isn't wick size Container behaviour or spacing: check the glass score pattern and the triangle Nothing
Fresh 3 × C2 controls don't rise this time Your first candle had another cause (placement, a draught, a long session) Re-check placement and the room; repeat once Nothing

The second row is common and honest: one wick size rarely suits both the top and the bottom of a tall candle perfectly. Then the choice is a trade-off: a slightly slower top with a calm bottom, a higher stop line, a session-length line on the label, or a lower fill. Which lever belongs to which depth is the life-cycle post; the double-wick version of the late-heat bracket is the double-wick late-heat post. If you're tempted by mixed sizes in the triangle instead, read the identical-or-mixed post first.

Argued against our own interest: if your trend's flame and depth lines are flat and only the glass score rises, don't buy a C1 pack yet. Smaller wicks are unlikely to fix container behaviour and may cost you the top zone. Try a shorter session and a higher stop line first, and look at the jar.

Grams, wicks and the calendar

Four 800 g candles at 8% Woody Oud in CSI 464: two on 3 × C2, two on 3 × C1. Your jars are not costed; CSI lists no 12 cm jar.

Bill of materials · four-candle confirming run · worked example
Woody Oud 3 × 100 g · CSI 464 3 × 1 kg · Eco C2 10 and C1 20 · stickers 40 · scale · CSI live pricing, 29 September 2026
Item Size bought Used Cost of what is used
Woody Oud Fragrance Oil 3 × 100 g, ₹453.12 each (₹4.53/g) 256 g (four × 64 g; 44 g left) ₹1,159.99
Luxury Soy Wax CSI 464 3 × 1 kg, ₹507.40 each 2,944 g (56 g left) ₹1,493.79
Eco Candle Wicks, Thick (C2) 10 wicks, ₹94.40 6 wicks (4 spare) ₹56.64
Eco Candle Wicks, Thin (C1) 20 wicks, ₹118.00 (10-pack out of stock) 6 wicks (14 spare) ₹35.40
Candle Wick Stickers 40, ₹100.00 12 (28 spare) ₹30.00
Candle Making Weighing Scale ₹354.00 every session a tool, not consumed
Your own 12 cm jars not a CSI listing 4 jars, one batch not costed
Four-candle run, materials consumed 4 candles of 800 g ₹2,775.81

Per candle, excluding the jar: 3 × C2 costs ₹699.26 (₹290.00 oil, ₹373.45 wax, ₹28.32 wicks, ₹7.50 stickers) and 3 × C1 costs ₹688.64, ₹10.62 less. From nothing, the cash outlay is ₹3,547.96, or ₹3,193.96 if you already own a scale. Costs are worked examples and exclude labour, freight, packaging, jars and GST. The oil margin is 44 g; weigh carefully. A kilogram of Woody Oud fills 15 candles of 800 g at 8%.

What the trend run needs

Four items, chosen on page statements, price and stock on 29 September 2026. CSI publishes no wick-performance data, so nothing is ranked on burn results. Oil candles are counted at 64 g (800 g at 8%) and 12 g (the standard 150 g candle at 8%).

1
wick · the one-rung-down arm
Eco Candle Wicks — Thin (C1) and Thick (C2)
The confirming run puts 3 × C1 beside fresh 3 × C2 candles, logged at the same clock time. The page states no length, width or jar range in the text we captured, so the run, not the wick, says which suits your lower zone. If your candle is already on C1, CSI lists no smaller sized, tabbed wick than C1: your next options are two wicks, a higher stop line or a shorter session on the label, not a smaller wick from us. Argued against our own interest: buy the 100-pack only after the C1 arm has passed full life; per wick it costs the same as the 20. Stock on 29 September 2026: the C1 10-pack is out of stock; every other pack is in.
Pack Price Per unit What it covers here
Thin (C1) / 10 ₹59.00 — Out of stock ₹5.90 Out of stock on 29 September 2026
Thin (C1) / 20 ₹118.00 ₹5.90 the one-rung-down arm (6 wicks), 14 spare
Thin (C1) / 100 ₹590.00 ₹5.90 33 three-wick candles, after full life
Thick (C2) / 10 ₹94.40 ₹9.44 two fresh control candles (6 wicks), 4 spare
Thick (C2) / 20 · 100 ₹188.80 · ₹944.00 ₹9.44 flat per wick
Three C1 cost ₹10.62 less per candle than three C2. Buy C1 20 — ₹118.00
2
tool · turning weight into remaining height
Candle Making Weighing Scale
The trend is plotted against remaining wax, and the cleanest way to know it is to weigh the candle before each session, jar and all, then subtract the empty jar's weight. At 11.3 cm inside, each centimetre of wax is roughly 88.3 g (rule-of-thumb factor), so 400 g remaining is about 4.5 cm. The page says it shows "grams or ounces" and states no capacity or resolution in the text we captured; check it handles your full candle plus jar. Argued against our own interest: if you already own a kitchen scale that reads whole grams and takes the weight, use it; you need consistency, not a new scale. Weighing also gives grams per hour, which is the late-burn wax-use post's subject, not this one's.
Pack Price Per unit What it covers here
Single scale ₹354.00 ₹354.00 weigh before each session: remaining grams → remaining height
Weigh, then light: the same order every session. Buy — ₹354.00
3
fragrance oil · oud · the oil we cost the run in
Woody Oud Fragrance Oil
A resinous oud is a reasonable oil for a heat-trend run: heavier, resinous oils are commonly linked to more carbon on the wick (a tendency, not CSI data). The page states "candles (6-10%)" and "Cure soy wax candles for 48-72 hours before burn testing - oriental fragrance oils like oud benefit from full cure time"; notes: "citrus and spice top notes opening into rich oud and patchouli heart, settling into warm woody notes, amber, and musk". No vanillin figure in the text we captured. Argued against our own interest: it is priced flat at ₹4.53 a gram from 100 g to 1 kg, so three 100 g bottles (₹1,359.36) cost the same per gram as the 500 g and leave 44 g; the 50 g costs more (₹5.43/g).
Size Price Per gram 800 g candles at 8% (64 g) 150 g candles at 8%
15 g ₹93.22 ₹6.21 none (under 64 g) 1
50 g ₹271.40 ₹5.43 none (under 64 g) 4
100 g ₹453.12 ₹4.53 1 8
500 g ₹2,265.60 ₹4.53 7 41
1 kg ₹4,531.20 ₹4.53 15 83
The run: 256 g = ₹1,159.99. Buy 100 g — ₹453.12
4
wax · the soy the run uses
Luxury Soy Wax CSI 464 (Flakes Form) For Container Candles
The page states "Fragrance Load Up to 10%" and "Pour Temperature 80°C – 90°C". Your 12 cm jar is not a CSI listing, so no CSI page gives it a heat figure: follow your jar maker, pre-warm clean jars and pour at the low end of the range (our judgement). Flat per gram from 1 kg; three 1 kg bags (₹1,522.20) cover four 800 g candles with 56 g spare, so weigh carefully.
Pack Price Per unit What it covers here
1 kg ₹507.40 ₹0.51 per g three bags cover the run (2,944 g), 56 g left
5 kg · 10 kg ₹2,537.00 · ₹5,074.00 ₹0.51 per g production; flat per gram from 1 kg
The run: 2,944 g = ₹1,493.79. Buy 1 kg — ₹507.40
Skip: the Pen Thermometer (₹354.00) for glass: its page describes it as for "the temperature of your candle wax", and pressing a probe against hot glass is the touch test by another name. A new jar before the trend says "container". Cotton Braided Wicks: one large wick puts more heat in the centre, not less.
Diwali is 8 November 2026, 40 days from 29 September 2026. Start logging your existing candle tonight; a confirming run poured this week takes about 19 days to the stop line. Send us your candle count for a quote on Woody Oud, CSI 464, Eco wicks and a scale with a GST invoice and a dispatch date.
WhatsApp a Diwali quote
The CSI principle
Read the same moment of every burn, and plot it against wax left.
Flame, depth and glass rising together in the lower third point to the wicks; glass rising alone points to the jar. Confirm with one rung down beside fresh controls, and never judge glass by touch.
"A single hot burn is an anecdote. The same reading at the same minute of every burn is evidence."
— CandleMakingSuppliesIndia
Why trust this guide

CandleMakingSuppliesIndia sells the wicks, scale, oil and wax named here, and does not sell finished candles. This page still tells you that the trend costs nothing to start, that a kitchen scale will do, that Woody Oud's larger bottles save nothing per gram, that smaller wicks may not fix container heat, and that we list no non-contact thermometer and no 12 cm jar.

Every price was verified on CSI's live store on 29 September 2026. Stock was checked per size: the Eco C1 10-pack is out of stock on that date and is flagged where it appears; every other size shown is in stock. Oil, wick, wax, scale and thermometer wording is quoted from the product pages; where a page is silent in the text we captured, we say so.

The same-clock method, the 2-hour reading, the 0–3 glass score, the lower-third line, the 800 g fill, the 0.35 cm wall, the illustrative readings and burn rates, and the decision lines are our judgement or worked examples. The 0.86–0.9 wax factor, the hour-per-2.5 cm rule and the 1 cm stop line are commonly cited rules of thumb, not CSI data; CSI publishes no wick-performance data and sets no glass-temperature limit. For bulk pricing, GST invoicing, and MSDS and IFRA documentation on request, message us on WhatsApp at +91 7397976926.

Frequently asked questions

Why does my candle jar get hotter as the candle burns down?
Commonly, as the wax level falls, more glass stands above the pool and absorbs heat, the pool sits closer to the base and the flame can grow. If the wicks are right for the top, they can be over-powered for the lower third. A same-clock trend of flame, depth and glass observations shows which.
How do I know if my candle is over-wicked near the bottom?
Take the same readings at the same points in every session (flame and glass at two hours, depth at extinguishing) and plot them against remaining wax. If flame height, pool depth and glass observations all climb together in the lower third, the wicks have more power than that depth needs.
Is it safe if the candle jar feels hot?
Don't judge glass by touching it. Watch flame-to-glass distance, haze and soot; stop the session if a flame gets near the glass, and stop every burn with about 1 cm of wax left. A non-contact thermometer can show a trend, but no single figure makes a jar safe.
Should I use smaller wicks if the jar gets hot at the end?
Only if the trend says the wicks are the cause: flame and depth rising with the glass. If only the glass observations rise, smaller wicks may not help and can leave wax at the top. Test one rung down beside fresh controls before changing production.
How do I work out how much wax is left in a candle?
Weigh the candle and jar, subtract the empty jar, and divide by the grams per centimetre of height for your jar. In a jar 11.3 cm inside that is roughly 88 g per cm with a common rule-of-thumb factor; check with a ruler once or twice.
Does CSI sell a thermometer for candle glass?
No. CSI's Pen Thermometer is described for wax temperature, and no non-contact thermometer is listed. Judge glass by observation, and use a non-contact thermometer you already own only for trends.
Before you change the wicks
Log the same moment of every burn, then read the shape.
Flame and a glass score at two hours, depth at extinguishing, plotted against wax left. A rise in all three in the lower third points to the wicks; confirm with one rung down beside fresh controls (₹2,775.81 in materials in the worked example). Send us your readings on WhatsApp.
Shop Eco C1/C2 wicks Send your trend readings
Continue the read — 10–12 cm jars and multi-wick problems
Editorial standards & sources
About this guide: part of CSI's cluster on 10–12 cm jars and multi-wick problems (4261–4280). It answers one question, whether a 12 cm candle whose jar seems hotter every burn is over-wicked, with a same-clock session log, a trend chart plotted against remaining wax height from weight, five trend shapes and their meanings, and a costed confirming run one rung down beside fresh controls.

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 — Eco Candle Wicks, Luxury Soy Wax CSI 464 (Flakes Form) For Container Candles, Woody Oud Fragrance Oil. They are general product reviews, not assessments of the wick 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 — Renam Dhoundiyal, Payal Patel, Monika Deep, Subhankar Roy, Jaya Sawlani, Thenirvaofficial. Reviews below five stars are included as published, not filtered out.

Figures verified 29 September 2026, CSI live pricing: Eco Candle Wicks Thin (C1) 10 ₹59.00 (out of stock), 20 ₹118.00, 100 ₹590.00; Thick (C2) 10 ₹94.40, 20 ₹188.80, 100 ₹944.00; Candle Making Weighing Scale ₹354.00; Pen Thermometer ₹354.00; Woody Oud Fragrance Oil 15 g ₹93.22 (₹6.21/g), 50 g ₹271.40 (₹5.43/g), 100 g ₹453.12, 500 g ₹2,265.60, 1 kg ₹4,531.20 (each ₹4.53/g); Candle Wick Stickers 40 ₹100.00; Luxury Soy Wax CSI 464 1 kg ₹507.40, 5 kg ₹2,537.00, 10 kg ₹5,074.00. Every other size listed is in stock on 29 September 2026. Per unit = price ÷ grams or units, two decimals.

Non-price figures: load is a percentage of total candle weight (800 g at 8% = 64 g oil + 736 g wax; the standard 150 g candle at 8% = 12 g). The 0.35 cm wall (11.3 cm inside), the 800 g fill, the 0.88 grams-per-ml factor (mid-point of the 0.86–0.9 rule of thumb), the 88 g stop-line remainder, the 18 and 15 g per hour rates and every reading on the chart are worked-example assumptions or illustrations. Ceilings are as the pages state (Woody Oud 6–10% for candles; CSI 464 up to 10%, pour 80–90°C): formulation limits, not regulatory ones. The 2-hour clock, the glass score, the lower-third line and the decision lines are editorial judgement; the hour-per-2.5 cm rule and the 1 cm stop line are commonly cited rules of thumb. No glass-temperature figure is given or implied. Costs exclude labour, freight, packaging, jars and GST. Diwali 8 November 2026 is a calendar fact.
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