I Need 100 Candle Jars for My First Production Run — Should I Buy Exactly 100 or Order Extras for Testing and Breakage?

Where extra jars go: five buckets, not one percentage

Most advice on this question gives one number: order 5% extra, or 10%. A single figure feels safe, but it mixes up jars that are certain to be used (tests), jars that might be lost (breakage) and jars left over because of how the product is packed. Separate them and each becomes a smaller, more defensible number, and after your first run you can replace each with your own count.

1. The test pack: counted in jars, and certain to be used

Before 100 jars are poured, something has to answer three questions: which wick gives a full melt pool without a tall, sooty flame; what the jar really holds to your fill line; and whether the glass behaves in the final third of the burn, where heat builds. Those answers come from burning candles all the way down, and a candle burned to the bottom is not a candle you sell. So test jars are a fixed count, not a percentage: they do not grow with the order. For a single jar and wax, ten covers it: six for a wick bracket (C1 and C2, three jars each), two for fill-weight test pours that can then be burned too, and two kept back to retest the winning wick to the bottom. The glass-safety side of those burns is covered in the pre-500 heat test; for fragrance, the matching question is how many test candles to make before buying oil in bulk.

2. Arrival and inspection rejects

Every jar should be counted and looked at before it goes near wax: chips on the rim, cracks, bubbles or stones in the glass, bases that rock, lids that do not seat. A chipped rim is a reason to reject a jar for production, not a cosmetic note; the case is made in My Candle Jar Has a Small Chip on the Rim — Is It Safe to Use for Production or Should Damaged Jars Always Be Rejected?. Some jars arrive damaged in any glass shipment, and some fail inspection even when the carton was perfect. CSI publishes no breakage or rejection rate for its jars, and we do not have one to give you. Our planning allowance for a first order is 2–3%, and it is the first number you should replace with your own. The full inspection routine is the jar QC checklist.

3. Production losses

First runs lose jars in ways later runs do not: a jar knocked off the bench, wax spilled down the outside and baked on, a wick that drifts and cannot be recentred, a jar that cracks while cooling. Be clear about what is really lost here. Many cosmetic failures (a sunken top, a wet spot you dislike, frosting) cost wax and time, not glass: you can often melt the candle out, clean the jar and repour. The jars truly lost are the broken, cracked and badly marked ones. Our allowance for a first run is 3–5%; by the third run of the same jar most makers find it falls.

4. The replacement reserve

If you hand-deliver, you may need none. If you courier finished candles, some will reach customers broken, and a replacement from the same batch, same jar and same fragrance is much easier to send if the jar is on your shelf. Our allowance is 0% for hand delivery, about 2% if some orders go by courier and about 3% if all do. What your onward packing should look like is in I'm Ordering Glass Candle Jars From Another State — What Packaging Should I Expect From a Supplier to Minimise Transit Breakage?.

5. The pack round-up

CSI's Clear 150 g jar comes in packs of 10 and 20; the Matte 200 ml family in 5 and 10; the Salsa lug-cap jar in 5, 50 and 100. Whatever your allowances add up to, you buy whole packs. The difference is not waste if you will make this candle again: it is the first stock of your second run. It is waste only if you change jar, so settle the jar in the test pack before you buy a hundred of it.

The first-run framework, costed on three plans

Here are the five buckets for 100 sellable candles in the Clear Glass Jar with Golden Lid (150 gram), on three planning assumptions. The percentages are ours, a planning framework rather than industry data, and a first run is exactly when you should be generous with them. The jar is priced flat at ₹94.40, so every plan costs jars × ₹94.40.

Two things stand out. First, Lean and Standard cost the same, because a pack of 10 swallows the three-jar difference. That makes Standard the default: the reserve is free once you are rounding to packs anyway. Second, one jar in six of the 120 is an extra, which sounds like a lot until you look at what each does: ten are the tests that decide whether the other hundred are worth pouring, and the rest cost ₹1,888.00 less ₹944.00, that is ₹944.00, across the three allowances and the pack round-up.

Exactly 100 jars would be ₹9,440.00: five packs of 20. Against the Standard plan you save ₹1,888.00, and you have no tests, no allowance for a single cracked jar and nothing to replace a customer's broken candle with.

Rounding to CSI pack sizes: three jar families

The same three plans cost differently in different jars, and not only because the jars cost differently. Pack structure matters. Most CSI jar listings are priced flat per jar across pack sizes; of the three families here, only the 200ml Salsa clear jar gets cheaper per jar in a bigger pack, and only up to 50.

Smaller packs mean smaller round-ups. The Matte family's pack of 5 lets the Lean plan land exactly on 105 and the Cautious plan on 115 instead of 120. On the Clear 150 g jar, packs of 10 are the smallest step, so every plan rounds to the next ten.

The Salsa jar's break is at 50, not 100. 100 Pcs costs the same per jar as 50 Pcs (₹29.50), so there is no reward for buying past 100 in 50s. For 115 jars, 100 Pcs plus three 5 Pcs packs is ₹3,551.80; jumping to 150 (100 + 50) is ₹4,425.00, ₹873.20 more for 35 jars you did not plan for. Those 35 may still be worth having if you will certainly run again, but that is an inventory decision, the subject of the savings-versus-inventory maths, not a buffer decision.

The jar price changes what the buffer is worth. Ten extra Salsa jars at ₹29.50 cost ₹295.00; ten extra Clear 150 g jars cost ₹944.00. The cheaper the jar, the less a generous buffer costs you, and the more a shortfall (a delivery, a delay) outweighs it. The coloured 150 g jars (Black, Red, Pink, Orange) are ₹107.00 each in packs of 10 and 20; the Black and Red titles still say "Deliveries Starting 5th Dec" (Pink and Orange carry it in their web addresses), which is stale listing text, so confirm dispatch on WhatsApp before planning a run around them. Amber 150 g is out of stock on 26 September 2026.

Three jars short: what running out really costs

Suppose you bought exactly 100 Clear 150 g jars, two arrived chipped and one cracked while cooling. You have 97 candles for a 100-candle order. What does that cost?

On cash alone the difference is the second delivery, ₹200.00 in this worked example. The larger cost is time: three candles must be poured, cured and packed days after the other 97, and if the order is for a date (Diwali, a wedding, a corporate hand-over), those days may not exist. That asymmetry is the whole argument for a buffer: an extra pack up front costs the same glass as the top-up and none of the delay.

The argument has a limit. A buffer is only cheap if the jars will be used. If this is a one-off order in a jar you will never use again, leftovers are dead stock, and you should keep the buffer tight: Lean, not Cautious. If the jar is your house jar, every spare is next month's stock.

Size your first order in six steps

This is the order we would use for any first run of a new jar, ours included. It takes one small purchase, a week or two of burning, and one production order sized from what the test pack told you.

What to buy for the test pack and the run

Five products in the order the plan uses them, chosen on what their pages state, their pack structure and stock on 26 September 2026, not on burn performance: CSI publishes no burn-down or breakage data for these jars.

Which guide in this cluster answers your next question

Wax for a batch of 100 is a separate calculation with its own extras (pitcher residue, top-ups, re-pours): see I'm Making 100 Candles in 200 ml Jars — How Do I Calculate the Total Wax and Fragrance Oil I Need Without Making Too Much?. Whether the glass itself is suitable is the glass-safety cluster's job, starting from the heat test linked above.

If the first run is for Diwali, 8 November 2026

Diwali falls on 8 November 2026, 43 days after these prices were checked. A first run for Diwali has no room for a top-up order, which moves you to the Cautious plan almost by default. Dispatch is from Pune and delivery time depends on your location, so confirm it on WhatsApp before you build a schedule on it.

If the test pack is late, shorten the retest, not the bracket. If the production jars are late, the buffer is what lets you still finish: which is why a festival run is the one time we would not keep the buffer tight.

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