My New Jar Is Taller but the Diameter Is Identical — Do I Need a Complete Burn Test or Mainly Later-Stage Heat Testing?
शेयर करना
CSI 468 wax from ₹325.00 / 500 g Lemongrass and Lime from ₹116.52 / 15 g Eco wicks from ₹59.00 / 10
CSI change-control guides · I changed my jar
Same pool, deeper flame: which burns a taller jar actually changes, depending on how you fill it.
★★★★☆
"Quality of the wick is good for jar candles, team can work on the pricing and delivery timelines."
Monika DeepVerified buyer · Oct 2025
Eco Candle Wicks
★★★★★
"Quality wick, works very well"
AshwiniSep 2025
Eco Candle Wicks
★★★★☆
"Good quality .... if possible delivery date would be try little bit quick please"
Subhankar RoyVerified buyer · Sep 2024
Eco Candle Wicks
★★★★★
"This needle is very helpful as it doesn't damage the mould and there is no leakage of wax while pouring.. I would definitely recommend this .."
LJAug 2024
Premium Candle Wicking Needle
★★★★★
"Good one"
Sneha TamangVerified buyer · Apr 2025
Premium Candle Wicking Needle
★★★★★
"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
★★★★☆
"Quality of the wick is good for jar candles, team can work on the pricing and delivery timelines."
Monika DeepVerified buyer · Oct 2025
Eco Candle Wicks
★★★★★
"Quality wick, works very well"
AshwiniSep 2025
Eco Candle Wicks
★★★★☆
"Good quality .... if possible delivery date would be try little bit quick please"
Subhankar RoyVerified buyer · Sep 2024
Eco Candle Wicks
★★★★★
"This needle is very helpful as it doesn't damage the mould and there is no leakage of wax while pouring.. I would definitely recommend this .."
LJAug 2024
Premium Candle Wicking Needle
★★★★★
"Good one"
Sneha TamangVerified buyer · Apr 2025
Premium Candle Wicking Needle
★★★★★
"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
Reviews collected and published through Judge.me on candlemakingsuppliesindia.store. They are general reviews of the wicks and wick tools named on each card, not assessments of the taller-jar testing method set out below. Wording is unedited.
✓ Test sizes: oils from 15 g, wax from 500 g ✓ Prices pulled 24 September 2026 ✓ GST invoicing · MSDS & IFRA documentation on request
Change Control · Jars · Taller, same diameter
The melt pool has not changed; the flame's position has. Keep the same 200 g and every burn happens 2 cm deeper. Fill to the old headspace and only the lower burns are new. Decide which, then test the depth you created.
+2.00 cm
deeper flame at every burn stage with the same 200 g in a 9 cm instead of 7 cm jar (illustrative, 7.6 cm inside)
Quick answers — read this first
Complete burn test or mainly later-stage heat testing? It depends how you fill it. Same 200 g (Scenario A): every burn is deeper, so run close to a complete burn test. Same headspace (Scenario B): mainly later-stage testing plus a full-life burn.What does a taller jar not change? With the same inside diameter: melt-pool area (45.36 cm² at 7.6 cm), wick-to-glass distance and the formula. Compatibility, cure and cold throw: KEEP.
What does it change? Depth below the rim. Illustration, 7 → 9 cm deep: Scenario A starts 3.99 cm below the rim instead of 1.99 cm; Scenario B becomes a 280 g candle (+39.9%).
How many candles and what cost? Six — 3 old, 3 new. CSI materials: ₹1,858.52 for Scenario A, ₹1,975.04 for Scenario B. See the kit.
The short answer
Geometry: Same diameter → same pool. 39.9 g per cm of depth at 7.6 cm and 0.88 g/ml. 200 g = 5.01 cm tall; 9 cm jar at old headspace = 280 g.
Verdict: Scenario A: REPEAT flame, soot, throw and full life; CONFIRM pool. Scenario B: KEEP early burns after a confirm, REPEAT late burns and full life.
Decision: Compare new and control at the same depth; no worse on any safety line; never over-wick to chase throw. General list: if you change only the jar.
In this guide
Illustrative jars drawn to scale, all 7.6 cm inside. The number beside each jar is the distance from rim to wax at the first burn. Scenario A keeps 200 g and starts 3.99 cm down; Scenario B fills to the old headspace and becomes 280 g. Wax factor 0.88 g/ml is a labelled approximation. Geometry only — no burn result is implied.
Worked-example wax
CSI 468 · ₹650.00 / kg
Worked-example oil
Lemongrass and Lime · ₹330.00 / 50 g
Check your plan
Send both jar depths on WhatsApp
Straight answer
My new jar is taller but the diameter is identical — do I need a complete burn test or mainly later-stage heat testing?
It depends on how you fill it — and either way, keep your formula data. An identical inside diameter means an identical melt pool, so compatibility, cure and cold throw stand. What changes is how deep the flame sits. In our illustration (7.6 cm inside, 7 → 9 cm deep, labelled 0.88 g/ml) there are two versions. Scenario A — same 200 g: the candle stands 5.01 cm tall in both jars, but in the new one it starts 3.99 cm below the rim instead of 1.99 cm, so every burn, first to last, is 2 cm deeper. That needs close to a complete burn test: flame, soot, throw, upper-glass readings and a full-life burn. Scenario B — same headspace: the candle becomes 280 g (+39.9%); its first burns match the old jar, and only the lower burns are new. That is mainly later-stage testing — plus a full-life burn, because the candle is bigger, and a new label weight and price. Six candles either way; ₹1,858.52 in CSI materials for A.
One line: same diameter, taller jar — the pool is unchanged, so test the depth: all burns if you keep 200 g, the lower burns if you fill higher.
Testing a taller jar with the same 200 g fill takes six candles — three old jars, three new — at 8%: about 100.8 g of oil and 1,159.2 g of wax with a 5% allowance. In CSI stock: Lemongrass and Lime 1 × 100 g + 1 × 15 g (₹706.52) and Premium Coconut Soy Wax CSI 468 1 × 1 kg + 1 × 500 g (₹975.00). If you will fill the taller jar higher, the kit grows — see Scenario B.
Buy Premium Coconut Soy Wax CSI 468
First decide which taller jar you actually have
"Taller jar" is two different changes, depending on where you pour the wax to.
With the internal diameter identical, the melt pool is identical: same area, same wick-to-glass distance, same surface for the wick to melt. The only dimension that changed is depth, and what that does to the candle depends entirely on a decision you make at the pouring table. Your title gives no numbers, so this page uses a labelled illustration: a 7.6 cm inside diameter, the old jar 7 cm deep inside, the new one 9 cm. At a labelled 0.88 g/ml each centimetre of depth holds 39.9 g of candle, so 200 g stands 5.01 cm tall in either jar.
Illustrative 7.6 cm jars · 39.9 g of candle per cm of depth at 0.88 g/ml
Scenario A and Scenario B side by side
| Measure | Old jar | New jar · A: same 200 g | New jar · B: same headspace |
|---|---|---|---|
| Internal depth | 7.0 cm | 9.0 cm | 9.0 cm |
| Melt-pool area | 45.36 cm² | 45.36 cm² | 45.36 cm² |
| Candle weight | 200.0 g | 200.0 g | 279.8 g (+39.9%) |
| Fill height | 5.01 cm | 5.01 cm | 7.01 cm |
| Headspace at the first burn | 1.99 cm | 3.99 cm | 1.99 cm |
| Oil at 8% / wax | 16 g / 184 g | 16 g / 184 g | 22.4 g / 257.5 g |
| Label weight | unchanged | unchanged | changes |
Scenario A keeps the product the same — same 200 g, same label, same price — and simply puts it in a jar with 2 cm more glass above it. The wick starts every burn 2 cm deeper below the rim. Scenario B fills the taller jar to the same look, with the same 1.99 cm of headspace, which makes a 280 g candle: 39.9% more wax and oil, a new label weight, a new price, and a candle whose last burns happen 2 cm deeper than the old one's ever did. The retest answer is different for each, so pick one before you plan anything.
Distance from rim to the wax surface at each stage · geometry only
How deep the flame sits, burn stage by burn stage
| Jar and fill | First burn | Halfway | Last burn | Difference from the old jar |
|---|---|---|---|---|
| Old jar · 200 g | 1.99 cm | 4.50 cm | 7.00 cm | reference |
| New jar · same 200 g (Scenario A) | 3.99 cm | 6.50 cm | 9.00 cm | +2.00 cm at every stage |
| New jar · same headspace, 280 g (Scenario B) | 1.99 cm | 5.50 cm | 9.00 cm | same start, +2.00 cm at the end |
That table is the core of the answer to your title. In Scenario A, every stage of the candle's life is 2 cm deeper than before, so the change is not confined to the late burns — the first burn is already happening in conditions the old candle only met partway through. In Scenario B, the first burns are identical to the old jar and only the lower part of the candle is in new territory. That is where "mainly later-stage heat testing" is close to the right answer.
The CSI principle
Same diameter, taller jar: the question is not the pool but how deep the flame has to live.
Depth below the rim is the one variable a taller jar changes. Map it at the first burn, halfway and at the end, and the retest plan follows.
What extra depth can change
A flame deeper in a glass tube lives in a different micro-climate from one near the rim, and the effects commonly described in candle making all come from that. None of them is measured by CSI for any jar, and the size of each depends on your wick, wax and room, so treat the list as the reason for the test, not a prediction of the result.
Mechanisms commonly described for deep-set flames · test, do not assume
Why a deeper flame can behave differently
| Mechanism | What you might see | Scenario A | Scenario B |
|---|---|---|---|
| Less air exchange around a flame deep in the jar | Flickering, a flame that shortens or smokes as it goes deeper | All burns | Lower burns |
| More glass above the flame to heat | Upper jar and rim warmer than before | All burns | Lower burns |
| Fragrance released lower in the jar | Hot throw that feels weaker in the room | All burns | Lower burns |
| Longer candle (B only) | More burns and hours; more cycles of heating the glass | — | Whole life |
| Soot deposited on more glass | Dark ring on the upper wall | All burns | Lower burns |
"Same diameter, same wick, same pool — nothing to test." For the pool, that is true. For the flame, it is not: a wick burning 2 cm deeper in a glass tube is breathing different air and heating more glass. Makers who skip the test on a taller jar usually find out through the throw — customers who say the new jar "doesn't smell as strong" — or through soot on the upper glass that the old jar never showed.
The retest matrix, split by scenario
The series' four verdicts — KEEP, CONFIRM, REPEAT, NEW — applied twice, because the two ways of filling the taller jar lead to two different plans.
Retest matrix · same inside diameter · taller jar · formula and wick unchanged
Complete burn test or later-stage only?
| Test | Scenario A · same 200 g | Scenario B · same headspace |
|---|---|---|
| Oil–wax compatibility, cure, cold throw | KEEP | KEEP |
| Time to full melt pool | CONFIRM (same pool, deeper flame) | KEEP after 1 burn |
| Flame height, flicker, soot — early burns | REPEAT | CONFIRM |
| Hot throw, fixed room | REPEAT | CONFIRM early, REPEAT late |
| Upper-glass / rim reading | NEW | NEW (late burns) |
| Late-burn flame, soot, jar readings | REPEAT | REPEAT |
| Full-life burn | REPEAT | REPEAT — longer candle |
| Consumption g/hour and label burn time | CONFIRM | NEW calculation for the new weight |
| Label weight and price | unchanged | NEW |
So the answer to "complete burn test or mainly later-stage heat testing?" is: Scenario A needs something close to a complete burn test, because every burn is deeper; Scenario B mainly needs later-stage testing, plus a full-life burn because the candle itself is 40% bigger. In both, the formula data stays. If your new jar is taller and heavier at the base, add the thicker-base post; if it is taller and tapers, the tapered-container post changes the pool as well as the depth.
Scenario B changes your cost per candle
Filling to the same headspace adds 79.8 g per candle: 6.39 g of oil and 73.5 g of wax at 8%. With Lemongrass and Lime at the 100 g rate (₹5.90/g) and CSI 468 at the 1 kg rate (₹0.65/g) that is ₹85.43 more material per candle, before labour, packaging, freight and GST. Price it before you decide which scenario to test.The protocol for each scenario
Scenario A tests the whole life at a new depth. Scenario B tests an old candle with a new ending.
1
Choose A or B and write it downRecord the fill weight or fill height you will use in production. Weigh-pour one new jar to that line to confirm the weight at your wax factor.
2
Pour six from one melt3 × old jar at 200 g (control) and 3 × new jar at either 200 g (A) or 280 g (B), approved wick, 8% test load. CSI 468 has no published fragrance ceiling in this series; 8% is a labelled test value — check the product page or ask CSI.
3
Cure togetherSame shelf, same days — for example 7 days, a labelled checkpoint.
4
Mark the depth on the jarsTape each jar and mark every centimetre down from the rim. The mark the pool is at tells you where you are in the table above, and lets you compare old and new at the same depth rather than the same burn number.
5
Burn in cyclesAbout 3–4 hours per burn (a commonly used cycle; label it), full cool-down between. Scenario A: full scoring sheet on every burn. Scenario B: full sheet on burns 1–2, then light records until the pool passes the old jar's final depth, then full sheet again.
6
Take one per set to the endBoth scenarios need a full-life candle per set. For B, keep the control's result as the reference for the depths both jars share, and treat everything below that as new.
Scoring sheet · compare new with control at the SAME depth below the rim
The lines a taller jar puts under strain
| Line | How | Worse than control means |
|---|---|---|
| Depth from rim to pool | Tape marks | — (reference line) |
| Flame height and steadiness | Ruler; note flicker 0–3 | Shorter, flickering or smoking flame |
| Soot on upper glass | Wipe test 0–3 | Darker ring than control |
| Rim / upper-glass reading | Same thermometer, same point | Higher than control |
| Jar-side reading at the pool | Same thermometer, same point | Higher than control |
| Hot throw, fixed room | 1–5, two noses | Weaker — note, do not over-wick to compensate |
| Weight loss ÷ hours | Scale to 0.1 g | Changes the label burn time |
The priced test kit for A and B
Built from listed, in-stock CSI sizes on the 24 September 2026 pull, with Premium Coconut Soy Wax CSI 468 and Lemongrass and Lime as the worked example, at an 8% test load and a 5% allowance.
Six candles · 8% test load · 5% allowance · CSI live pricing, pulled 24 September 2026
Scenario A versus Scenario B
| Scenario A (6 × 200 g) | Scenario B (3 × 200 g + 3 × 280 g) | |
|---|---|---|
| Candle mix melted | 1,260 g | 1,511.5 g |
| Wax needed / bought | 1,159.2 g · 1 × 1 kg + 1 × 500 g · ₹975.00 | 1,390.6 g · 1 × 1 kg + 1 × 500 g · ₹975.00 |
| Oil needed / bought | 100.8 g · 1 × 100 g + 1 × 15 g · ₹706.52 | 120.9 g · 1 × 100 g + 2 × 15 g · ₹823.04 |
| Eco Thin C1 wicks | 1 × 10 · ₹59.00 | 1 × 10 · ₹59.00 |
| Wick Centering Device | 1 × 5 · ₹118.00 | 1 × 5 · ₹118.00 |
| CSI materials total | ₹1,858.52 | ₹1,975.04 |
1
Coconut soy container wax
Premium Coconut Soy Wax CSI 468
The worked-example wax. ₹650.00 a kilo at 1 kg and ₹637.00 a kilo from 5 kg. No fragrance ceiling is published for it in this series — check the product page or ask on WhatsApp; our 8% is a test value. Scenario A needs 1 × 1 kg + 1 × 500 g.
| Pack | Price | Per kg |
|---|---|---|
| 500 g | ₹325.00 | ₹650.00 |
| 1 kg | ₹650.00 | ₹650.00 |
| 5 kg | ₹3,185.00 | ₹637.00 |
| 10 kg | ₹6,370.00 | ₹637.00 |
₹975.00 covers Scenario A Buy CSI 468
2
Citrus herbal · real kilo step
Lemongrass and Lime Fragrance Oil
The worked-example oil, and one of the oils where bigger packs are cheaper per gram (₹5.90 at 100 g, ₹5.20 at 500 g and 1 kg). A test does not need that step: Scenario A's 100.8 g is 1 × 100 g + 1 × 15 g. A citrus is a fair test of a deep flame's throw, because nobody can hide a weak lemongrass.
| Pack | Price | Per gram |
|---|---|---|
| 15 g | ₹116.52 | ₹7.77 |
| 50 g | ₹330.00 | ₹6.60 |
| 100 g | ₹590.00 | ₹5.90 |
| 500 g | ₹2,600.00 | ₹5.20 |
| 1 kg | ₹5,200.00 | ₹5.20 |
₹706.52 covers Scenario A Buy Lemongrass and Lime
Argued against our own interest, plainly. Scenario B sells more of our wax and oil — 79.8 g more per candle, for ever. That is not a reason to choose it. Choose the scenario that makes the product you want to sell at the price you want to sell it. If the taller jar was a stock accident rather than a product decision, Scenario A is usually the smaller change to your business, even though its test is the bigger one.
Decision rule
CSI publishes no numeric flame-height or jar-temperature limits. Compare new with control at the same depth: no worse on any safety line, and within your jar supplier's guidance and the fire-safety standard you work to (ASTM F2417 is a commonly cited US one). A weaker throw is a commercial result; a hotter rim or a sooty upper jar is a safety one, and they are never traded.
Decision rule · taller jar
Reading the depth-matched results
| Result | Decision | Action |
|---|---|---|
| Every safety line no worse than control at matched depths; throw within your tolerance | PASS | Release; record depth and fill scenario in the jar spec |
| Safety fine; throw weaker from the first burn (A) | COMMERCIAL CALL | Consider Scenario B, or a shorter jar; do not over-wick to chase throw |
| Flame flickers or soots below the old jar's final depth (B) | FAIL — lower jar | Reduce fill (move toward A) or reject the jar |
| Rim or upper glass warmer than control | FAIL | Do not release; a wick change resets the whole test |
A taller jar does not change the pool. It changes where the flame has to breathe.
— CandleMakingSuppliesIndia
Whichever way it goes, record the jar's internal depth, the fill scenario, the fill weight and the result. The next time a supplier offers "the same jar, just taller", your record tells you exactly which test to run. The reproducibility-record post covers the format and the only-the-jar post has the general retest list.
Festive season is close: Diwali is 8 November 2026, with the November–February wedding season after it. Taller jars are popular for gifting, and Scenario B changes your costing. Send us your jar depth and chosen fill on WhatsApp and we will help you size both the test kit and the production order; larger quantities are quoted on WhatsApp, with no published discount figure.
Price a taller-jar run
Related jar changes
Depth is the theme of two neighbouring posts. The thicker-base post is the opposite case — less depth inside the same outside — and concentrates the test on the last centimetre. The narrowing-jar post combines depth with a shrinking pool. If the new jar is wider as well as taller, start with the diameter hub and treat depth as a second change, ideally tested separately.
Looking for a taller CSI jar? The White Matte Glass Jar (₹354.00 for 5), 200 ml Salsa Glass Jar (₹200.60 for 5) and Yankee Glass Jar 130 ml (₹47.20 each) are listed without published heights, internal diameters or fill weights. Measure a sample and use the scenario table above. See all glass jars.
Why trust this guide
CANDLEMAKINGSUPPLIESINDIA supplies raw materials, not jars. This page points out that one way of filling a taller jar sells more of our wax and oil for every candle you make, and recommends choosing the fill for your product and price, not for ours.
Wax and oil prices are CSI live pricing, pulled on 24 September 2026; wick and tool prices are those verified for Blog 760 on 10 September 2026, rechecked 25 September 2026. Jar dimensions are illustrations; fill heights, headspace, depths below the rim and the Scenario B candle weight are plain geometry.
The 200 g fill, 8% test load, 0.88 g/ml wax factor, 5% allowance, three-candle sets, 3–4 hour cycles and 7-day cure are labelled working practices. CSI 468 has no published fragrance ceiling in this series. CSI does not publish jar dimensions, burn data or numeric safety limits. WhatsApp +91 7397976926 for help, GST invoicing, MSDS or IFRA documentation.
Frequently asked questions
Does a taller candle jar affect burning?
It does not change the melt pool if the diameter is the same, but it puts the flame deeper in the glass, which can affect air around the flame, soot, upper-glass warmth and throw. Test it against the old jar at matched depths.
Should I fill a taller jar with more wax?
That is a product decision. Keeping 200 g keeps your label and price but puts every burn deeper. Filling to the old headspace makes a heavier candle — 280 g in our illustration — with a new label, price and later-stage test.
Why does my candle smell weaker in a taller jar?
A common explanation is that fragrance is released deeper in the jar. Compare throw against the old jar in a fixed room; do not raise the wick to compensate without re-running the safety lines.
Why is there soot on the top of my candle jar?
A deep-set flame can deposit soot on the glass above it. If it appeared after a jar change, compare against the old jar and see the decision rule on this page.
Do I need to repeat a full burn test for a taller jar?
Yes, a full-life burn per set in both scenarios. The rest depends on whether you keep the weight (close to complete) or the headspace (mainly later stage). The only-the-jar post has the general list.
How much more wax does a taller jar need?
Only if you fill it higher. In a 7.6 cm jar each centimetre of depth holds about 39.9 g at a labelled 0.88 g/ml; confirm your own figure with a weighed pour.
Pick the fill, then test the depth
Same pool, deeper flame. Decide how you fill the taller jar, then burn it against the old one at matched depths.
Premium Coconut Soy Wax CSI 468 from ₹325.00 for 500 g, Lemongrass and Lime from ₹116.52 for 15 g, Eco wicks from ₹59.00 for 10. Send us your jar depths and chosen fill and we will help you plan the test.
Shop candle wax Plan my taller-jar test
Continue the read — I changed my jar
- My Jar Supplier Changed the Internal Diameter from 7.6 cm to 7.9 cm — Is That Difference Large Enough to Require New Wick Testing?
- My New Jar Holds the Same 200 g but Is Slightly Wider and Shorter — Can I Use the Same Wick as My Previous Container?
- My New Jar Has a Much Thicker Base — Should I Repeat End-Of-Life Burn Testing Even If the Upper Dimensions Are Unchanged?
- I Changed from a Straight-Sided Jar to a Tapered Container — Can the Same Wick Behave Differently as the Candle Burns Deeper?
- My New Jar Narrows Toward the Bottom — Could a Wick That Is Correct at the Top Become Too Powerful Later?
- I Have 1,000 Candles Due but Can Only Source a Slightly Different Jar — What Measurements Should I Compare Before Deciding Whether the Substitution Is Practical?
- If I Change Only the Jar, Which Tests Should Be Repeated to Confirm Wick Performance and Container Heat Remain Acceptable?
- How Do I Record Exact Wax Product, Fragrance Code, Wick Specification and Jar Dimensions so a Successful Candle Can Be Reproduced Months Later?
Editorial standards & sources
About this guide: Written by the CANDLEMAKINGSUPPLIESINDIA team. Product recommendations reflect the CSI range. The depth geometry and the two-scenario plan apply to any jar and any supplier's materials.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, Premium Candle Wicking Needle and Bamboo Wick Holder. They are general product reviews, not assessments of the guidance set out here. Names, star ratings, dates and products are as recorded by Judge.me and wording is unedited. "Verified buyer" appears only on the three reviews Judge.me recorded as verified — Monika Deep, Subhankar Roy and Sneha Tamang; the reviews from Ashwini, LJ and Lalitha Jagan are published but not recorded as verified, and carry no badge.
Figures pulled 24 September 2026, CSI live pricing: Premium Coconut Soy Wax CSI 468 ₹325.00 / 500 g, ₹650.00 / 1 kg, ₹3,185.00 / 5 kg, ₹6,370.00 / 10 kg (no fragrance ceiling quoted in this series). Lemongrass and Lime Fragrance Oil ₹116.52 / 15 g, ₹330.00 / 50 g, ₹590.00 / 100 g, ₹2,600.00 / 500 g, ₹5,200.00 / 1 kg. Figures verified 10 September 2026 (Blog 760), wick packs rechecked 25 September 2026: Eco Candle Wicks Thin C1 ₹59.00 / 10; Wick Centering Device ₹118.00 / 5; White Matte Glass Jar ₹354.00 / 5; Salsa 200 ml ₹200.60 / 5; Yankee 130 ml ₹47.20 each.
Non-price figures and assumptions: The 7.6 cm inside diameter and 7 cm / 9 cm depths are illustrative. Area = π × d² ÷ 4; grams per cm = area × 0.88 g/ml (labelled approximation); headspace = depth − fill height. The 200 g fill, 8% test load (oil = W × L), 5% allowance, three-candle sets, 3–4 hour cycles and 7-day cure are working practices. Scenario B's extra cost uses the 100 g oil and 1 kg wax rates and excludes labour, packaging, freight and GST. CSI publishes no jar dimensions, burn data or safety limits. Diwali 2026 falls on 8 November.