I Lose About 3% of Wax During Production — How Do I Include That Wastage in the Real Cost of Each Sellable Candle?

Wastage is a divisor, and it lands on two lines

You have given one number, and it is a good one to have: 3% of your wax does not end up in a sellable candle. Everything else on this page is a live CSI price for September 2026, so that you can check the method against real materials and then drop your own rates into it. The first thing to settle is what the 3% is a percentage of, because there are three plausible answers and only one of them is the loss you described.

A production loss is measured out of what you start with. You melt a quantity of wax, you pour candles, and when the batch is finished a small amount of wax is in the jug, on the spatula, in the bottom of the pot and in the failed top-up you re-melted into next week's batch. That is a loss out of the input. So the relationship is: what reaches the jars equals what you bought, times 0.97. Turn that round and what you must buy equals what reaches the jars, divided by 0.97. Division, not multiplication — and a divisor is always the slightly bigger correction.

The second thing to settle is which lines it touches. A candle has four material lines. Two of them — the wax and the fragrance oil — spend time in the pot and are lost by the gram. Two of them — the jar and the wick — never enter the pot. A jar can break and a wick can be thrown away with a rejected candle, but that is a unit that failed, counted per candle, not a percentage skimmed off a pot. Keep the two effects apart in the sheet and both stay honest. Mix them and you will be adding a percentage to a number that already carries a percentage, which is how a costing quietly drifts upward until nothing on it can be checked.

What 3% looks like in grams, and what it does to an order

Rupees hide the size of a loss; grams do not. To put 200.00 g of wax into a jar at a 3% loss you must melt 206.19 g, and 6.19 g stays behind. The fragrance follows the same division: 16.49 g bought for the 16.00 g that goes in, so 0.49 g of oil is in the pot film too. That sounds negligible until you count the batch. A hundred candles need 20.62 kg of wax rather than 20.00 kg, and 1649.48 g of fragrance rather than 1600 g.

That is where a costing figure becomes an ordering figure. Eco Soy CSI 400 is sold in 1 kg and 5 kg packs. Four 5 kg packs is 20 kg, which covers a hundred candles exactly if nothing is ever lost — and leaves you 619 g short once your own 3% is counted. The honest order is four 5 kg packs plus a 1 kg pack: ₹8,383.00 rather than ₹7,984.00, a difference of ₹399.00 for the batch. Running out of wax with eleven jars wicked and waiting is more expensive than that, in a way no cost sheet records.

One more line that belongs in the grams column rather than the rupee one. The wax you leave in the pot was also carried to you. The 5 kg pack of Eco Soy CSI 400 stores a packed weight of 6.0 kg, and the cheapest published band covering that weight is ₹630.00 on Standard Shipping as at September 2026. Spread over the 5 kg inside the box that is ₹126.00 a kilogram of wax, so the 6.19 g you lose per candle carried a further ₹0.78 of carriage with it. It is a small number and it is not the reason to fix your process, but it is the reason a wastage figure belongs in the sheet at all: every gram in that pot was paid for twice.

Measuring your own loss instead of borrowing a number

Every wastage percentage published anywhere, including the one in your question, is an assumption until somebody weighs something. The measurement is not difficult and it takes one batch. You need a scale that reads to the gram, a notebook and the discipline to write down a number you may not like.

When a purchase does help, it helps because it removes a transfer rather than because it is a better tool. Every time wax moves from one vessel to another it leaves a film behind, so the pot-to-jug-to-jar route loses more than a pot-to-jar route. Melting in something you can pour from directly — a mini wax melter with a tap, or a jug used as the melting vessel — removes one of those films. So does pouring at the right temperature rather than chasing a cooling pot: wax that has started to set on the lip is wax you are about to leave behind. The cooling window and the fragrance-addition temperature both matter here for a reason that has nothing to do with throw.

How much wastage is worth fixing

The useful thing about a divisor is that it scales predictably, so you can see what a percentage point is worth before you try to win one. On this candle each point of loss is worth roughly a rupee and a half of scented wax, and the step between rungs grows slowly as the percentage rises. Find the row nearest your measured figure, and find the row you think you could reach: the difference between those two rupee totals is the prize for a process change, per candle.

Read the last column honestly. Moving from 5% to 3% saves you ₹3.11 a candle, which across a hundred candles is ₹310.94. That is worth an afternoon of process tidying. Moving from 3% to 1% saves ₹2.98 a candle. That is worth changing a habit, and it is not worth buying equipment for on its own — if a melter or a better jug earns its price, it earns it in time and in consistency, and the wax saving is a bonus rather than the case. CSI sells those tools and this page still says so plainly.

What is not wastage, and belongs somewhere else

A wastage percentage is a narrow instrument. It measures material that entered the process and did not leave it in a sellable candle. Four other losses feel similar, cost real money and must be counted separately, because each behaves differently as your batch size changes.

The reverse error is just as common and costs more: costing at the theoretical fill and never counting the loss at all. On this candle that understates you by ₹4.43, which is 2.01% of the materials bill. It is not a catastrophe on one candle. It becomes one when it travels into a wholesale price on a two-hundred-piece corporate order, where ₹886.17 of unrecorded wax is the difference between a thin margin and no margin. The whole value of a measured wastage figure is that it is small, boring and stable — the kind of number that makes every other number on the sheet trustworthy.

Frequently asked questions