If I Reduce My Candle From 10% to 8% Fragrance Load, How Much Fragrance Oil and Money Do I Save Across 100 Candles?

400 grams, and why that part is certain

Fix the convention first, because it decides the whole answer. A fragrance load is a percentage of wax weight, not of the finished candle — that is how CSI product pages state loads, and it is what this series uses throughout. So a 200 g candle here means 200 g of wax, with the oil added on top. This page carries that reading everywhere, and shows the fixed-fill alternative separately further down, because the two do not give the same answer.

With that settled the arithmetic is short. Ten per cent of 200 g is 20 g of oil; eight per cent is 16 g. The gap is four grams a candle, and it is four grams whatever the oil costs, whoever supplies it and whatever currency you think in. Across a run of 100 candles that is 400 g: the run draws 1600 g from your shelf instead of 2000 g. The jar takes 216 g of fill rather than 220 g, so the finished candles are four grams lighter each, which matters if your label carries a weight.

It is worth naming the proportion as well as the quantity, because the proportion is what makes this decision feel bigger than a two-point change sounds. Going from 10% to 8% is a 20% reduction in fragrance — the four grams is measured against the twenty you were using, not against the candle. That is the number your nose will be asked to judge, and it is the reason the cut has to be burn-tested rather than assumed.

What 400 grams is worth at your rate

Your question gives a load and a run but not a price, so the honest answer is a rate multiplied by 400 g. A kilogram rate divided by 1,000 is a gram rate, and 400 g times that is your saving on paper. The table below is a lookup across a spread of rates so you can read off whichever is yours. None of the rates in it is a CSI price — they are round figures chosen to bracket what makers actually pay, and they are illustrative.

Two cautions come with that figure before you spend it. The first is that it is a saving on materials you have not yet bought, not money arriving in your account — it shows up as a smaller purchase order or a longer gap between orders, which the next section is entirely about. The second is that it assumes the 8% candle sells as well as the 10% one did. If throw drops and a customer does not reorder, ₹1,888.00 is a small thing to have traded away.

What 400 grams looks like when you place the order

Here is the part the paper figure hides. You do not buy 400 g less of oil; you buy a different set of packs. At 10% a run of 100 candles needs 2000 g, which is exactly two 1 kg packs of Verbena at ₹4,720.00 each, or ₹9,440.00. At 8% it needs 1600 g, and 1,600 g is not a pack size. You have to build it out of the ladder.

The Verbena ladder does fall as the pack grows, which is not true of every product on the store — several CSI oils carry the same rate per gram from 50 gm upward, and most CSI waxes are the same rate per kilogram at every pack size, so always read the ladder on the product you actually buy. Verbena runs from ₹7.08 a gram at 15 gm down to ₹4.72 a gram at 1 kg, live CSI pricing in September 2026.

Now build 1600 g three ways and compare. 1 kg plus 500 gm plus 100 gm is exactly 1600 g for ₹7,788.00. Three 500 gm packs plus a 100 gm is the same quantity for ₹8,024.00. 1 kg plus 500 gm plus two 50 gm packs is ₹7,858.80. The first is the cheapest, and against the ₹9,440.00 you would have spent at 10% it is a cash saving of ₹1,652.00.

Compare that with the ₹1,888.00 the multiplication promised and you find the gap: ₹236.00. It is there because the 600 g you bought in smaller packs cost more per gram than the kilogram would have. Your effective rate on the exact buy is ₹4.87 a gram against ₹4.72 on two clean kilograms — ₹0.15 a gram dearer. Nobody is overcharging you; you simply stopped buying a round number.

The saving most makers actually get: more candles per pack

Almost nobody buys 1,600 g. What actually happens after a load cut is that the next order looks exactly like the last one and the oil lasts longer, and that is a perfectly good outcome as long as you can see it for what it is. At 20 g a candle, one kilogram of oil scents 50 candles. At 16 g it scents 62.5. That is 12.5 more candles from every kilogram you already have on the shelf, and across two 1 kg packs — the order this run would have taken at 10% — it is 25 more candles for the same ₹9,440.00.

Read that as a rate rather than as a windfall. The cost of the fragrance in each candle falls from ₹94.40 to ₹75.52 at the ₹4.72 kilogram rate, and it is that per-candle rate, not the ₹1,888.00, that flows through to every costing you do afterwards. The ₹1,888.00 is what the run releases once. The per-candle figure is what it releases every time.

There is a version of this where the cash is real, and it is worth naming: if your run is the last one before you stop using this scent — an end-of-season fragrance, a collection you are retiring, a one-off wedding or corporate order — then the 400 g you did not use is oil you never have to buy, and the exact-quantity purchase makes sense. For a scent you sell all year, ordering to the gram to bank ₹1,652.00 while paying ₹0.15 a gram more for the privilege is usually the wrong trade.

If the jar has to stay full

Everything so far holds the wax at 200 g and lets the fill fall from 220 g to 216 g. That is the cleanest reading and it is the one this page carries. But if your vessel is poured to a line, or your label prints a weight, the fill cannot move — and then cutting the load means topping the candle back up with wax, which changes both the grams and the money.

Hold the fill at 220 g and divide by 1.08 to keep the load a true 8% of wax weight: the wax rises to 203.7 g and the oil falls to 16.3 g. The oil saved is now 3.704 g a candle rather than 4 g, which across the run is 370.37 g instead of 400 g. And you have added 370.37 g of wax to the run, which at ₹0.51 a gram for Luxury Soy Wax CSI 464 is ₹187.93 spent back.

So the fixed-fill version releases ₹1,560.22 of materials against ₹1,888.00 — about 17% less — and the difference is not an error in either figure. They are answers to two different questions, and the only mistake is quoting one while making the other. Write on the batch sheet which one you are doing before the first pour.

What has to be true before the saving is real

A load cut is the only saving in candle making that can be undone by a customer. Everything else on a cost sheet — a cheaper pack, a consolidated parcel, less wastage — leaves the product alone. This one changes what is in the jar, and 8% of wax weight is a 20% reduction in fragrance against the 10% you were pouring. It may be entirely invisible in the room. It may not be. The only way to know is to pour both, cure both and burn them side by side at the same age.

Two things are worth checking before you accept that the 8% version is weaker, because both are free. The first is cure, as above. The second is wick size: a candle that cannot reach a full melt pool cannot release what is in it at any load, and a wick chosen for a 10% candle is not automatically right for an 8% one. The live guides go further than a costing page should — making candles smell strong without exceeding the safe fragrance load, the curing and load mistakes behind fading fragrance and what load to use by fragrance family.

One last point in the cut's favour, and it is a practical one rather than a sales one. Eight per cent sits comfortably inside both stated ranges here — Luxury Soy Wax CSI 464 states a maximum of 10% of total wax weight and the Verbena page states use of up to 10% for soy wax, and the lower of the two governs — which means that if the 8% candle disappoints you still have headroom to go back up. Cutting from the ceiling leaves you somewhere to return to. That is not true of a cut made from a load that was already at the limit for a different reason.

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