How Do I Include Wax Spillage, Leftover Fragrance, Broken Jars and Rejected Candles When Calculating My Actual Production Cost?

Five kinds of loss, three ways to treat them

Most costings stop at the recipe: grams of wax times price per gram, grams of oil times price per gram, one wick, one jar. That recipe cost is correct for a candle that was made perfectly, first time, with nothing left behind. Production is never like that. The fix is not to add a vague 10% to everything. It is to sort each loss by what actually happened to the material, because that decides whether it is a cost of this batch, a cost you can partly recover, or not a cost at all.

The first four rows share one feature: the material has gone and no candle you can sell came out of it. Their cost does not vanish. It lands on the sellable candles, because those are the only candles that bring money in. The last row is different. A half-used bottle of oil is still an asset. Spreading its cost over this batch would make these candles look dearer than they are and the next batch look cheaper than it is. Both errors distort your pricing.

This post is about the method across all five. If jar breakage is your main problem, the jar-breakage post compares breakage rates in depth. If your rejects come from the wax itself, the premium-versus-budget wax post works out whether a dearer wax pays for itself. The recipe cost that everything here starts from is built step by step in the 200 g true-cost post.

A worked batch ledger

Here is one realistic batch, costed from start to finish. The candle is a 200 g container candle at an 8% load: 16 g of oil and 184 g of wax. The wax is Luxury Soy Wax CSI 464 at ₹507.40 a kilo, bought as one 10 kg bag (₹5,074.00) and one 5 kg bag (₹2,537.00). The oil is Japanese Cherry Blossom Fragrance Oil, bought as a 1 kg (₹4,842.00) plus a 100 g (₹500.00), so 1,100 g at a weighted average of ₹4.8564 a gram. Wicks are Eco Thin C1 at ₹5.90 each and jars are White Matte at ₹70.80 each.

The maker planned 60 sellable candles and poured 63 to leave a margin. During the run 350 g of fragranced wax was lost to the jug, drips and one overfilled top-up. Two jars chipped when the packs were opened. Two wicks were set crooked and pulled out before the pour. After curing, two candles were burned as test candles and three were rejected: one for a cracked jar after a heat-gun touch-up, two for off-centre wicks. The two good jars from those rejects were cleaned and put back into stock.

Look at the gap between the second and fourth columns. The maker spent far more than ₹15,920.25 at checkout, but a large part of that spend is still in the workshop: 3,086 g of wax worth ₹1,565.84 and 64 g of oil worth ₹310.81. That money funds the next batch, not this one. If you divided the whole checkout total by 58 candles, you would overstate this batch's cost badly, then understate the next batch when it drew on the leftovers for free.

From batch cost to cost per sellable candle

The recipe cost of one candle is ₹77.70 of oil (16 g at the weighted average rate), ₹93.36 of wax (184 g at ₹0.5074 a gram), ₹5.90 for the wick and ₹70.80 for the jar: ₹247.76. If all 58 sellable candles had been made with zero loss, the batch would have cost about ₹14,370.29. It actually consumed ₹15,920.25. The difference, ₹1,549.96, is the cost of loss, and every rupee of it can be traced:

Spread over 58 sellable candles, that ₹1,549.96 adds about ₹26.73 to every candle, taking it from ₹247.76 to ₹274.49. That is a 10.8% uplift on material cost, and none of it is unusual. Two test burns, a few rejects and a cracked jar or two are a normal batch for a small workshop. The rejects and test burns cost the most, because each one takes a whole candle's materials with it, not a few grams.

Can you claw some back? If the wax from the three rejects is remelted into wax melts that you genuinely sell, its oil and wax (₹513.18) can be credited back, bringing the figure to ₹265.64. Take that credit only if the wax melts exist as a product with sales. Reclaimed wax in a tub on a shelf is not a credit. It is the same loss, stored. Remelted fragranced wax also tends to lose some scent over repeated heating in general practice, so test the reclaimed product before you count on it.

This is the table that should change how you run production. Every candle you lose from the same pour adds roughly ₹4.81 to each of the others at this batch size. Losing eleven candles instead of five pushes the cost per sellable candle past ₹306.16. Cutting rejects is often worth more than chasing a cheaper wax, and trimming fragrance load saves less than most makers expect once yield is in the picture.

Leftover oil and wax: inventory, not waste

The 64 g of Japanese Cherry Blossom still in the bottle is enough for 4 more candles at 16 g each. It has a value of ₹310.81 at what you paid. Leaving it on the balance sheet at that value is correct as long as you will pour it. The same goes for the 3,086 g of CSI 464, which is a base wax you use in every candle and carries almost no risk of going unused.

Leftover fragrance does become a cost in three situations. When you discontinue the scent and have no other product to put it in. When the oil has been open and stored badly for long enough that you no longer trust it in a customer's candle. When a custom scent was bought for one client's order and has no other use. In each case write it off in full, in the month you make the decision, as a named line: "fragrance written off". Do not quietly bury it in the next batch's cost. You want to see that number, because it tells you how much your range is costing you in stranded stock.

Measuring your own yield

The working allowance of 3–5% extra fragranced wax for pour loss and test burns is a starting point, not a fact about your workshop. A maker pouring from a small jug into 200 g jars loses a different amount from one pouring 500 candles through a four-nozzle funnel. For a 60-candle plan of 12,000 g, 3% is 360 g and 5% is 600 g. Our worked batch lost 350 g to spills, inside that band, but its real cost came from rejects and test candles, which the allowance does not cover. Measure all of it with a simple ledger for every batch:

Keep the ledger for each scent and each jar. Yields often differ. A wide jar with a single wick may reject more for tunnelling on test burns. A dark dye may show frosting that you reject in white wax. When one product's yield sits well below the rest, you have found either a formulation problem or a price that needs to rise.

Buying for the loss you will have

Once you know your yield, buy for it. The worked batch needed 63 jars poured plus two broken, so 65 jars were right, and thirteen packs of five cover it exactly. Wax is easy, because leftovers carry forward without risk. Fragrance needs more thought. The batch used 1,036 g of oil, including the spill, which is more than a 1 kg bottle. A maker who bought exactly 1 kg would have run out on the last few candles. The 100 g top-up avoided that at a small cost per gram.

For the next steps in the same costing, the forgotten-costs post adds everything outside materials, the profit post decides what belongs in profit, and the Diwali wax-allowance post scales the allowance to a 1,000-candle run. If you are pouring thousands of identical candles, the 5,000-candle post covers wastage at volume.

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