My Glass Jars Are Cheap but Their Dimensions Vary Slightly Between Batches — How Can That Affect Wick Testing and Production Consistency?

My Glass Jars Are Cheap but Their Dimensions Vary Slightly Between Batches — How Can That Affect Wick Testing and Production Consistency?

 

Clear 150 g golden lid: ₹94.40 per jar 200 ml Matte: ₹70.80 per jar Weighing Scale ₹354.00
Batch control · measure before you pour
Keep every batch of jars inside the range your wick was actually tested in.
★★★★☆
"I like the material of tin jar no doubt but some are little dent but the Mandala design is awesome. One more thing its difficult to open after I ready my candle and closed with lid its had to open, its both good point and the same time difficult to work. Thankyou"
Jinal MonilVerified buyer · Mar 2026
Tin Containers for Candle Making - 85 & 135g
★★★★★
"Good product"
Biny AbrahamVerified buyer · Feb 2026
Black Glass Jar with Black Lid (150 gram) (Deliveries Starting 5th Dec)
★★★★★
"Quality wick, works very well"
AshwiniSep 2025
Eco Candle Wicks
★★★★★
"This bamboo wick holder doesn’t exert any pressure on the wicks… and it is a very useful product 👌🏻👌🏻.."
Lalitha JaganAug 2024
Bamboo Wick Holder
★★★★★
"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
★★★★☆
"Good quality wax"
Arminder KaurVerified buyer · Oct 2025
Eco Soy CSI 400
★★★★☆
"I like the material of tin jar no doubt but some are little dent but the Mandala design is awesome. One more thing its difficult to open after I ready my candle and closed with lid its had to open, its both good point and the same time difficult to work. Thankyou"
Jinal MonilVerified buyer · Mar 2026
Tin Containers for Candle Making - 85 & 135g
★★★★★
"Good product"
Biny AbrahamVerified buyer · Feb 2026
Black Glass Jar with Black Lid (150 gram) (Deliveries Starting 5th Dec)
★★★★★
"Quality wick, works very well"
AshwiniSep 2025
Eco Candle Wicks
★★★★★
"This bamboo wick holder doesn’t exert any pressure on the wicks… and it is a very useful product 👌🏻👌🏻.."
Lalitha JaganAug 2024
Bamboo Wick Holder
★★★★★
"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
★★★★☆
"Good quality wax"
Arminder KaurVerified buyer · Oct 2025
Eco Soy CSI 400
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 the Clear 150 g jar — from ₹944.00 Ask whether stock is from the same batch
✓ Prices verified 26 September 2026, out-of-stock colours flagged ✓ GST invoice, MSDS and IFRA documentation on request ✓ Raw materials only — CSI does not sell finished candles
CSI Jar & Container Guides · Production
A jar 2 mm wider inside looks identical and has about 6% more melt pool to fill. Batch variation quietly moves your wick, fill weight, headspace and lid fit. Here is the maths, and a five-minute routine that keeps every batch inside what you have tested.
±6%
melt-pool area from ±2 mm of inside diameter on a 6.3 cm jar (worked example) · CSI live pricing, September 2026
Quick answers — read this first
Can small differences in jar size between batches really matter? Yes. In our worked example a jar 2 mm narrower inside has 6.2% less melt-pool area and one 2 mm wider has 6.4% more, although the difference is almost invisible. That changes how far the wick has to melt, how full the jar looks and whether the lid fits.

What changes in production? Fill by weight, and headspace moves: 150 g sits 0.60 cm below the rim in a narrow jar and 1.36 cm in a wide one, against 1 cm in the reference jar. Fill to a line, and the candle weighs about 141 to 160 g instead of 150 g.

What should I do? Measure a reference sample, set an acceptance band, burn-test your wick at both ends of the band, and measure a few jars from every new batch before pouring.

Does a cheap jar mean more variation? Price does not tell you either way. No CSI jar listing states a tolerance or an inside diameter, so you measure every supplier's jars, cheap or dear.
The short answer
The effect: ±2 mm on a 6.3 cm inside diameter is about ±6% melt-pool area and ±6% fill weight to the same line; add base-thickness variation and headspace can shrink from 1 cm to about 0.40 cm.
The wick: a wick proven on one diameter is proven for that diameter. Test the narrowest and widest jars you intend to accept, not the average.
The band: measure 10 jars from an approved batch at two or three heights, burn-test the extremes, and call the tested range your acceptance band (our method, not an industry standard).
The routine: measure at least 5 jars from every delivery (about 5 per 100, our judgement): all in band → pour; some out → measure more; many out → treat it as a new jar.
Shop: Clear 150 g jar with golden lid · 200 ml Matte family · 200ml Salsa jar · Weighing Scale · Eco C1/C2 wicks · Wick Centering Device
In this guide
Two millimetres you cannot see, six per cent you can Worked example drawn to scale (circles 1 cm = 30 px): a reference jar 6.3 cm wide inside, and batches 2 mm narrower or wider. Melt-pool area, seen from above 6.1 · 6.3 · 6.5 cm inside 29.22 · 31.17 · 33.18 cm² of pool −6.2% · reference · +6.4% the wick must reach 1 mm further each side in the wide jar Same 150 g poured, headspace changes 6.1 cm headspace 0.60 cm 6.3 cm headspace 1.00 cm 6.5 cm headspace 1.36 cm rim drawn at 1 cm = 16 px · 7 cm inside depth Fill to a fixed line instead, and the candle weight moves: about 141 g, 150 g and 160 g for the same three jars. Illustrative dimensions (series worked-example jar: 7 cm outer, about 0.35 cm walls, 1 cm base). CSI listings state no inside diameter or tolerance.
Drawn to scale. The three circles differ by only 2 mm of diameter, which you would not notice on a shelf, but the pool area changes by about 6% either way. On the right, the same 150 g candle poured into each jar: the narrow jar's wax sits 0.60 cm below the rim, the wide jar's 1.36 cm. The jar geometry is the series worked example, not a CSI specification.
Reference sample
Clear 150 g golden lid — 10 jars for ₹944.00
Batch check
Weighing Scale ₹354.00: empty weight and water to the line
Before you reorder
Ask whether stock is from the same batch
Straight answer
My glass jars are cheap but their dimensions vary slightly between batches. How can that affect wick testing and production consistency?
It affects four things. The melt pool: a wick is tested on one inside diameter, and in our worked example 2 mm less diameter means 6.2% less pool area while 2 mm more means 6.4% more, enough to move a candle from a clean full pool towards tunnelling or towards running hot. The fill: to the same line, a narrow jar holds about 141 g and a wide one about 160 g where the reference holds 150 g, and if you fill by weight instead, headspace swings from 0.60 cm to 1.36 cm. The base: a thicker base lifts the whole candle and eats headspace. The rim: lids that fit one batch can be loose or tight on the next. The fix is not to chase a perfect jar; it is to measure a reference sample, burn-test your wick on the narrowest and widest jars you intend to accept, and treat that tested range as your acceptance band. Then measure a few jars from every new batch before you pour: in band, pour; out of band, measure more or retest. Price is not the issue. No CSI jar listing states a tolerance, and batch-to-batch variation is a normal feature of mass-produced glass that you manage by measuring.
One line: your wick is approved for the jars you tested, so test the extremes you will accept and measure every batch against them.
Build your reference sample first: a pack of 10 Clear 150 g jars with golden lid (₹944.00) or 200 ml Matte jars (₹708.00) gives you ten jars to measure, two to burn-test at the band ends, and a record to hold every later batch against.
Buy a 10-jar reference pack

Diameter: the melt pool and the wick

Two millimetres is invisible on a shelf and obvious in a burn test.

Wick choice depends mostly on the inside diameter at the height where the pool forms. The area the wick has to melt is π × r², so it grows with the square of the diameter: small changes in width make proportionally larger changes in area. Using the series worked-example jar (a CSI 200 ml Matte jar listed at "width 7 cm", treated as outer, with walls of about 0.35 cm, giving roughly 6.3 cm inside), here is what batch-to-batch variation does. One honest wrinkle: a straight-sided jar 6.3 cm across and 7 cm deep inside would hold more than the listed 200 ml, which is itself a reason to measure; we keep the series planning figure of 150 g for the reference jar and look only at how far it moves.

Worked example · inside diameter vs pool area and fill
Reference jar 6.3 cm inside, 150 g to a fill line 1 cm below the rim, 7 cm inside depth
Inside diameter Pool area Change vs reference Weight to the same line Headspace at a fixed 150 g
6.0 cm (−3 mm) 28.27 −9.3% 136 g 0.39 cm
6.1 cm (−2 mm) 29.22 −6.2% 141 g 0.60 cm
6.2 cm (−1 mm) 30.19 −3.1% 145 g 0.80 cm
6.3 cm (reference) 31.17 — 150 g 1.00 cm
6.4 cm (+1 mm) 32.17 3.2% 155 g 1.19 cm
6.5 cm (+2 mm) 33.18 6.4% 160 g 1.36 cm
6.6 cm (+3 mm) 34.21 9.8% 165 g 1.53 cm

Pool areas are in cm² and assume straight sides; the weights and headspaces are worked-example estimates, not CSI figures. Your own jars will differ, which is the point: the table shows the sensitivity, and your measurements supply the numbers.

What that does to a tested wick

Suppose your wick was bracketed on 6.3 cm jars and reaches the glass at about the three-to-four-hour mark (a common rule of thumb for a first burn). In a 6.5 cm jar the flame has 1 mm further to reach on each side and about 6.4% more wax to melt; a wick that was just adequate may now leave a ring of unmelted wax at the edge, which can deepen into a tunnel over later burns. In a 6.1 cm jar the same wick has less wax to melt and sits closer to the glass; many makers see a deeper pool, a taller flame and a hotter jar in the final third. These are tendencies, not certainties, and a wick with margin at the reference size may cope with both. The only way to know is to test the ends.

Why your earlier test may be misleading you
If you bracketed your wick on three jars that happened to come from the middle of the range, your "approved" wick was never tested at the edges. When a new batch runs 2 mm wider, it looks as if the wick "stopped working". It did not change; the jar did. How much a 5 mm difference in diameter changes the wick and melt pool goes further into larger jumps, and I Want to Standardise One Wick Across Multiple Candle Jars — How Similar Do Their Internal Diameters Need to Be? covers how close diameters must be to share one wick.

Measure where the pool forms, not only the rim

Rim diameter is the easy number to measure and the least useful for wicking. Measure the inside with callipers or a steel rule at the rim, then, if the jar may taper, at mid-height and near the base on one sacrificial jar per batch (or by lowering calliper jaws into an empty jar). A jar that narrows towards the bottom can pass at the rim and still run hot in the final third; see My Jar Narrows Toward the Bottom — Should I Select the Wick Based on the Top, Middle or Bottom Internal Diameter?. On coated jars (matte or frosted) you cannot see the wall, so the empty-weight check below matters more.

Fill line, fill weight and headspace

Every production run makes a choice, usually without noticing: fill to a weight or fill to a line. Batch variation turns that choice into a trade-off.

Fill by weight or fill to a line?
What varies when the jar varies
Fill by weight (e.g. 150 g every jar) Fill to a line (e.g. 1 cm below the rim)
Candle weight constant varies: about 141 to 160 g across ±2 mm
Headspace varies: about 0.60 to 1.36 cm across ±2 mm constant
How it looks on the shelf narrow jars look fuller, wide jars emptier every jar looks the same
Net weight on the label one figure you can meet every time must be the lowest weight you fill, or you under-fill some
Lid and flame clearance check the narrowest jar still clears the lid constant, if the rim is consistent

If you print a net weight, filling by weight keeps the label true, and you set a minimum headspace (our judgement: not much under 0.5 cm, and never so little that the lid touches the wax or the flame sits near the rim). India's Legal Metrology (Packaged Commodities) Rules govern net-quantity declarations on pre-packaged goods; check the current requirements for your product and channel (this is not legal advice). Choosing a container so a declared net weight does not sit too close to the rim covers the sizing side, and How Do Professional Candle Brands Determine the Correct Net Weight to Print on the Label When Using a New Jar? the label figure.

The base is the variation nobody measures

Glass bases vary in thickness too, and a thicker base raises the whole candle. In the worked example, a jar that is 2 mm narrower inside and also has a base 2 mm thicker leaves a fixed 150 g fill only 0.40 cm below the rim, less than half the planned headspace. You will not see this by looking at the jar from the side. You will see it on the scale: the empty jar weighs more, and it holds less water to your fill line. How a thick glass base affects the burn near the bottom covers the burning side.

The two-number batch check
For every jar in a sample, write down two weights: the empty jar, and the water it holds to your fill line (tare the jar first). The first tells you about glass thickness; the second tells you directly how much candle fits. Two numbers, one scale, no callipers. If both sit inside your reference range, many of the dimensional questions are answered.

Rim, lid and the things you notice last

The rim is where batch variation meets the customer. A metal lid that pressed on firmly in one batch can spin loose or refuse to seat in the next; a lug cap that turned smoothly can bind. Customers notice this before they notice anything about the burn. Check the lid on every jar in your sample, not just one. The detailed tolerances for lids across batches are covered in My Candle Lids Fit the First Batch of Jars but Are Loose on the Second Batch — How Do Commercial Brands Manage Dimensional Tolerances?; for this guide the rule is simple: a batch whose lids do not fit is out of band, however well the wick behaves.

Two quieter effects are worth a line in your records. Height variation changes where a label sits and whether a jar fits the box it shipped in last month; a few millimetres rarely matters, but a whole centimetre can. And wall thickness changes weight: a batch with heavier glass can move a parcel into a higher courier weight band. Couriers commonly bill on actual or volumetric weight, whichever is higher; check your courier's terms.

Argued against our own interest
CSI's jar listings give outer or unspecified diameters, sometimes "approximately", and no tolerance at all. We cannot promise that the jars you receive next month measure exactly like this month's, and we would rather you plan for that than discover it in a burn test. Ask us on WhatsApp whether current stock is from the same batch as your last order, and measure on arrival either way.

Setting an acceptance band

An acceptance band is the range of jars your wick has actually been tested in, written down.

This is our method, built from the physics above; it is not an industry standard, and a larger business may want tighter statistics. It turns "the jars vary a bit" into a rule you can apply in five minutes when a delivery arrives.

1
Take a reference sample. Ten jars from a batch you are happy with. For each, record inside diameter at the rim (and at mid-height on one sacrificial jar), height, rim outer diameter if you use a lid, empty weight, and water weight to your fill line.
2
Note the spread. Write down the smallest and largest value of each measurement. That is the variation inside one batch, and it is your starting point for the band.
3
Pick the extremes. Take the narrowest and widest jars of the ten (by inside diameter, or by water weight if you cannot measure inside), plus the one with the heaviest empty weight.
4
Burn-test the extremes with your chosen wick. Full burns, including the final third, checking pool, flame height, soot and glass temperature. The three extremes plus a repeat of whichever looks borderline makes four test candles; in Matte jars they cost ₹601.04 before oil (jar, 138 g of CSI 464 and a C2 wick each).
5
Write the band. If the extremes pass, the band is the tested range: for example, 6.1 to 6.5 cm inside, 141 to 160 g of candle to your fill line, lid fits firmly. If an extreme fails, narrow the band or re-bracket the wick.
6
Keep the reference jars. Label two or three measured, unused jars from the sample and keep them. When a batch looks different, compare side by side instead of from memory.

The band protects you in both directions. It stops you rejecting jars that are different but tested, and it stops you pouring into jars that are different and untested. It is also exactly what you need if you ever switch to a near-identical jar from another supplier: the same measurements, the same band, the same end tests.

The batch routine: measure, decide, record

Once the band exists, each new delivery gets the same short routine before any wax is melted. Sample size is our judgement: about 5 jars per 100, never fewer than 5, taken from different cartons or layers rather than the top of one box.

Batch decision · our planning rule
Measure the sample against your written band before pouring
What you find What it usually means What to do
Every sample jar inside the band same jar, normal variation pour; file the measurements
One or two jars just outside the edge of normal variation measure 20 more; set aside any outside the band for non-production use
Many jars outside, in the same direction a shifted batch: effectively a new jar burn-test the new size before pouring; do not assume the old wick
Lids loose or tight on several jars rim variation out of band for lidded products, whatever the diameter
Empty weights clearly heavier thicker glass: less room inside, heavier parcels check water weight to the line and headspace at your fill

For a large delivery with a mixed result, the next question is whether to sort every jar, re-wick a group or reject some: what to do when 500 received jars have different internal diameters covers that decision and its costs. A full visual and dimensional checklist (chips, cracks, bubbles, base flatness, cleanliness) is in How Do I Create a Quality-Control Checklist for Glass Candle Jars Before They Enter Production?.

Why measuring is cheap insurance

A sample of five jars takes minutes to measure. Compare that with finding out after pouring: 100 candles in the worked example tie up ₹15,026.12 of jars, wax and wicks before oil, labour and packaging, all poured into jars your wick was never tested in. Measuring does not stop variation; it stops variation reaching your customers untested.

Records that make the next batch faster

Keep one line per delivery: date, supplier and listing, sample size, the range of each measurement, in band or not, and what you did. After a few deliveries you will know how your jar normally behaves, which makes an unusual batch obvious at a glance. Keep the wick centred consistently, too: a wick that drifts off-centre in production adds its own variation on top of the jar's, and a long-term supply conversation goes better when you can show a supplier your numbers.

This guide is for you if
You already have a jar and a wick that work, and deliveries that do not always match. If you have just received a large order and found mixed diameters, go to I Received 500 Candle Jars and Some Have Different Internal Diameters — Should I Reject Them If My Wick Was Tested on a Specific Diameter?; if you are building a full incoming inspection, see How Do I Create a Quality-Control Checklist for Glass Candle Jars Before They Enter Production?.

Jars, tools and wicks for batch control

Chosen for what their pages state about dimensions, price and stock on 26 September 2026, not for performance: CSI publishes no tolerance, burn or breakage data for these jars. Every pack shown is in stock.

1
150 g jar · the most completely dimensioned listing in this guide
Clear Glass Jar with Golden Lid (150 gram)
The page gives height, "outer diameter 7cm", "outer rim diameter approximately 7cm", "base diameter approximately 6.5cm", a golden metal lid and "Safe for hot pour up to 85°C" (page wording). Note the word "approximately": no CSI listing states a tolerance, and none states an inside diameter. The rim figure matters for lid fit; the outer figures do not tell you the inside, so measure. Its structured data mixes "curved silhouette" and "straight-sided" wording, which is one more reason to measure at two or three heights. Limitation: flat ₹94.40 per jar, so a pack of 10, the smallest pack, is how you take a reference sample.
Pack Price Per jar What it covers
Pack of 10 ₹944.00 ₹94.40 a 10-jar reference sample for your acceptance band
Pack of 20 ₹1,888.00 ₹94.40 production; measure 5 from each new delivery
Reference sample of 10 jars: ₹944.00. Buy a pack of 10 — ₹944.00
2
200 ml jar · the series worked-example jar
White Matte Glass Jar (and its 8 × 7 cm sister listings)
States only "Height 8 cm width 7 cm" and "fill weight of 200 ml", with "withstand high heat" (no figure) and no lid. "Width" does not say outside or inside, and the matte coating hides the glass wall, so measure the inside at the rim and, on a sacrificial jar, lower down. The thirteen in-stock colour and finish listings state the same size at ₹70.80 per jar; treat each colour as its own batch for measuring. Limitation: with no stated inside diameter or wall thickness, your reference sample is the only specification you have.
Pack Price Per jar What it covers
Pack of 5 ₹354.00 ₹70.80 a 5-jar check on each new delivery
Pack of 10 ₹708.00 ₹70.80 a 10-jar reference sample
Flat ₹70.80 per jar at 5 or 10. Buy a pack of 10 — ₹708.00
3
200 ml jar · lid fit is the first thing to check
200ml Salsa Glass Jar with 63mm Lug Cap (Golden Lid)
The page states "The 200ml capacity" and a golden 63 mm lug cap; no height or diameter. For a lug-cap jar, batch variation shows up first at the neck: a cap that closes firmly on one delivery and loosely or tightly on the next. Try a cap on every jar in your sample, and measure the inside where the pool will sit, below the shoulder. ₹40.12 per jar at 5 Pcs, ₹29.50 at 50 or 100 Pcs. Limitation: the description calls it an "upcycled" jar, so do not assume uniformity; measure it like any other.
Pack Price Per jar What it covers
5 Pcs ₹200.60 ₹40.12 a first sample and cap-fit check
50 Pcs ₹1,475.00 ₹29.50 production, measured on arrival
100 Pcs ₹2,950.00 ₹29.50 same per jar as 50
From 50 Pcs, ₹29.50 per jar. Buy 5 Pcs — ₹200.60
4
tool · water weight, empty weight, finished weight
Candle Making Weighing Scale
The simplest batch check needs no callipers: weigh the empty jar, then the water it holds to your fill line. A heavier empty jar usually means thicker glass (less room inside); less water to the line means less candle. The page describes a digital scale in "grams or ounces" with one-button operation and states no capacity or reading step, so check it reads to at least 1 g before you rely on it for batch records. Argued against our own interest: if your kitchen scale reads single grams and tares, use it.
Pack Price Per unit What it covers
Single ₹354.00 ₹354.00 every empty-weight, water-weight and finished-candle check
Scale plus a wick centering device: ₹472.00. Buy the scale — ₹354.00
5
wicks · test both ends of the band
Eco Candle Wicks (C1 / C2) and Cotton Braided Wicks Ready Made
Flat per wick at every pack: C1 ₹5.90, C2 ₹9.44, Cotton Braided ₹12.00. The Cotton Braided page says it is "engineered for large-diameter candles exceeding 8 cm", well above the inside widths in this guide, so treat it as the rung above C2, not a default. For batch work the point is not which wick but where you test it: on the narrowest and widest jars in your band. Two packs of C1 and C2 (₹306.80) cover a band-end retest on two jars with a spare each. CSI gives no definitive wick for these jars.
Pack Price Per wick What it covers
C1 · 10 ₹59.00 ₹5.90 the thin rung
C2 · 10 ₹94.40 ₹9.44 the thick rung
Cotton Braided · 10 ₹120.00 ₹12.00 if the wide end of your band will not reach the edge
A band-end retest: four candles, ₹601.04 before oil. Buy wicks — from ₹59.00
Pouring for Diwali 8 November 2026? One batch of jars for the whole festival run is simpler than two. Ask us about stock depth before you order, measure your sample the day the jars arrive, and pour only once they are in band.
WhatsApp a single-batch order
The CSI principle
A wick is approved for the jars it was tested in, so test the extremes you will accept.
Measure a reference sample, burn-test the narrowest and widest, write the band down, and measure every new batch against it before a gram of wax is poured.
"No jar listing tells you the tolerance. Your scale and your callipers will, in five minutes."
— CandleMakingSuppliesIndia
Why trust this guide

CandleMakingSuppliesIndia sells the jars, wicks and tools named here and does not sell finished candles. This page tells you our listings give outer or approximate dimensions and no tolerance, and that you should measure every batch we send you. We would rather you catch a shifted batch on the bench than in a customer's living room.

Every price and per-jar figure was verified on CSI's live store on 26 September 2026; every pack in a pick table is in stock on that date. Dimension, lid and heat wording is quoted from the product pages; where a page is silent, we say so.

The 6.3 cm reference jar, the ±1 to ±3 mm scenarios, the 7 cm inside depth, the headspace figures, the sample sizes and the acceptance-band method are worked examples and editorial judgement, not CSI specifications or industry standards. For bulk orders from a single batch, GST invoicing, and MSDS and IFRA documentation on request, message us on WhatsApp at +91 7397976926.

Frequently asked questions

Why does my wick work in some jars from a batch but not others?
Usually because the jars differ slightly inside. In our worked example, 2 mm of diameter changes the melt-pool area by about 6%, enough to move a borderline wick from a full pool to a ring of unmelted wax, or to a hotter burn in narrower jars. Measure the jars that misbehave.
How much can candle jar dimensions vary between batches?
It depends on the jar and the maker, and CSI's listings state no tolerance, some giving dimensions as "approximately". Measure a reference sample and each new delivery; do not assume a figure.
Should I fill candle jars by weight or to a fill line?
By weight if you print a net weight, so every candle meets the label; then check headspace in the narrowest jars of the band. To a line if appearance matters most, in which case the label must reflect the lightest candle you fill.
How many jars should I measure from each delivery?
Our planning rule is about 5 per 100 and never fewer than 5, taken from different cartons. If any fall outside your band, measure 20 more before deciding.
Do I need to redo wick testing for every new batch of jars?
Not if the batch measures inside your acceptance band and your wick was burn-tested on the narrowest and widest jars of that band. If the batch has shifted outside it, test the new size before pouring.
What tools do I need to check candle jar dimensions?
A scale that reads to at least 1 g for empty weight and water to the fill line, and callipers or a steel rule for inside diameter at the rim and lower down. The scale alone catches many batch changes.
Consistent candles from inconsistent glass
Measure ten, burn-test the extremes, write the band, check every batch.
A reference pack of 10 jars and a scale give you the two numbers that catch many batch changes: empty weight and water to your fill line. Burn-test the narrowest and widest, and your wick is approved for the whole band rather than for one lucky jar.
Get the weighing scale Ask about batch on WhatsApp
Continue the read — wholesale buying, shipping and production
Editorial standards & sources
About this guide: part of CSI's wholesale buying, shipping and production cluster. It explains how batch-to-batch variation in jar dimensions affects melt pool, wick testing, fill weight, headspace and lid fit, and sets out an acceptance-band method: reference sample, end-of-band burn tests and a per-delivery measuring routine.

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 — Bamboo Wick Holder, Black Glass Jar with Black Lid (150 gram) (Deliveries Starting 5th Dec), Eco Candle Wicks, Eco Soy CSI 400, Luxury Soy Wax CSI 464 (Flakes Form) For Container Candles, Tin Containers for Candle Making - 85 & 135g. They are general product reviews, not assessments of the container advice on this page. Names, star ratings, dates and products are as recorded by Judge.me and wording is unedited. "Verified buyer" appears only on reviews Judge.me recorded as verified — Jinal Monil, Biny Abraham, Thenirvaofficial, Arminder Kaur. The reviews from Ashwini, Lalitha Jagan are published but not recorded as verified, and carry no badge. Reviews below five stars are included as published, not filtered out.

Figures verified 26 September 2026, CSI live pricing: Clear Glass Jar with Golden Lid (150 gram), 10 ₹944.00, 20 ₹1,888.00; White Matte Glass Jar and in-stock 8 × 7 cm sisters, 5 ₹354.00, 10 ₹708.00; 200ml Salsa Glass Jar with 63mm Lug Cap, 5 Pcs ₹200.60, 50 Pcs ₹1,475.00, 100 Pcs ₹2,950.00; Candle Making Weighing Scale ₹354.00; Wick Centering Device (Pack of 5) ₹118.00; Eco Candle Wicks C1 10 ₹59.00, C2 10 ₹94.40; Cotton Braided Wicks 10 ₹120.00; Luxury Soy Wax CSI 464, 10 kg ₹5,074.00 (₹0.51 per gram from 1 kg). Per jar = pack price ÷ units, two decimals.

Non-price figures: the worked-example jar is the series reference (200 ml Matte family, "width 7 cm" treated as outer, walls about 0.35 cm, 1 cm base, straight sides, 7 cm inside depth, 150 g to a line 1 cm below the rim); inside diameters of 6.0 to 6.6 cm and the 2 mm base change are illustrative. Pool area = π × r² with the inside radius. Fill weights and headspaces scale with area and assume straight sides. The 3–4 hour full-pool figure is a rule of thumb. Sample sizes and the acceptance-band method are our judgement. Costs exclude oil, labour, freight, packaging and GST.
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