My Coffee Candle Needs More Fragrance Than My Lavender Candle for Similar Perceived Strength — Should Fragrance-Specific COGS Determine Pricing?

Building COGS per fragrance

A worked three-scent range in a 200 g candle (series default; use your own), each oil at the load a matched-strength test approved: Lavender at 7%, Roasted Coffee at 9%, Dark Vanilla at 9% (hypothetical results, not CSI claims). Wax and wick are CSI prices; jar and box are your own supplier's figures, labelled.

Three things belong on every scent's card even when they look identical. The load, because it sets both the oil and the wax line. The wick, because heavier oils such as coffee and vanilla commonly need a different wick from a light herbal; if your coffee needs a C2 where lavender runs on a C1, that ₹3.54 belongs in coffee's COGS. The pack you buy, because a scent you sell slowly is often bought in smaller, dearer bottles: at 100 g prices the three oil lines become ₹75.60, ₹70.20 and ₹142.20.

Why the coffee candle can cost less

Roasted Coffee costs ₹3.74 a gram at 1 kg, Lavender ₹5.22: coffee is 71.6% of lavender's price per kilo, and cheaper per gram at every pack size CSI sells. So coffee can use more oil and still cost less, up to a point. At the worked loads, coffee's 18 g costs ₹67.28 and lavender's 14 g costs ₹73.09: ₹5.81 in coffee's favour on oil alone. Coffee's candle also carries 4 g less wax, which narrows the gap slightly, leaving the coffee candle ₹8.21 cheaper overall.

So the premise "coffee needs more, so coffee costs more" fails for these two CSI oils unless lavender passes at 6% and coffee needs more than 8.84%. Then the gap runs the other way: coffee at 10% is ₹74.76 of oil against lavender's ₹62.65 at 6%. Dark Vanilla is the real outlier, for a different reason: it is dear per gram (₹7,646.00 a kilo), so it is expensive at any load.

Blended COGS from the sales mix

If all three scents share a price, the cost that price must cover is the mix-weighted average of the three candles. With 160 lavender, 90 coffee and 50 vanilla candles a month (worked example, 300 in total):

At a shared price of ₹699.00 the blended material ratio is 39.8%. That single number hides a spread: lavender at 38.6%, coffee at 37.5%, vanilla at 47.5%. One price works because cheaper candles carry dearer ones, which is fine as long as the mix holds.

Price the blend at the packs you actually buy. Vanilla at 50 candles a month uses 900 g; a maker who buys it in 100 g bottles while lavender and coffee come in kilos pays ₹4.57 more per vanilla candle, which lifts vanilla's COGS to ₹336.82 and the blend to ₹278.77. Small on its own; worth knowing before you decide whether a slow seller deserves a kilo.

When the mix moves, the blend moves

Suppose a winter season shifts sales towards vanilla: 120 lavender, 90 coffee, 90 vanilla. Blended COGS rises to ₹286.29 (41.0% of price), ₹8.29 a candle more, worth ₹29,827.20 a year at 300 candles a month, and no supplier changed a price. The reverse is just as real: if coffee takes 40 sales from lavender, the blend falls to ₹276.91. This is the strongest argument for knowing per-scent COGS even if you never use it to set a per-scent price: it lets you see margin move with the mix, month by month.

Three pricing policies, priced out

Before the numbers, remember what one price buys you that a spreadsheet does not show: a customer chooses by scent, not by price; gift buyers and corporate clients get one number to quote; your product page, labels and stall signage stay simple. Those are real advantages, and they are why the default should be one price unless a scent clearly breaks your band. With selling costs of ₹100.00 a candle (courier, gateway, packing; worked example), here is what each policy earns a month on the worked range.

Policy B: cost bands. Keep ₹699.00 for the scents inside your band and move the outlier to a premium band. With a 40% material-ratio ceiling (worked judgement), lavender (38.6%) and coffee (37.5%) sit inside; Dark Vanilla (47.5%) does not. At ₹799.00 it contributes ₹366.75 a candle (41.6% material ratio); if vanilla volume holds, the range earns ₹1,01,298.90 a month, ₹5,000.00 more. If vanilla falls from 50 to 40 a month at the higher price, the lift is ₹1,332.50; it breaks even at about 36.4 vanilla candles a month. Bands follow cost, not family: coffee is a gourmand like vanilla, but it belongs in the standard band because its candle is the cheapest.

Policy C: a price per scent. Price each candle at COGS ÷ your target material ratio: at 40%, lavender ₹675.27, coffee ₹654.75, vanilla ₹830.62. Lavender and coffee end up ₹20.52 apart, a gap too small for customers to value and big enough to confuse gift sets and bundles. Per-SKU pricing earns its complexity only when scents' costs are far apart, which is what bands already capture.

Gift sets and discounts land differently on each scent

Per-scent COGS earns its keep again whenever scents are sold together or on offer. A three-candle gift set with one of each scent costs ₹864.26 in materials; priced at ₹1,899.00 (worked example), its material ratio is 45.5%, while a set of three coffee candles at the same price would be 41.4%. If you let buyers choose any three, the vanilla-heavy set is the one that eats your margin; price the set on its dearest likely mix, or keep vanilla out of the "choose any three" offer.

Discounts work the same way. A 15% festive discount (worked example) takes ₹699.00 to ₹594.15. Lavender then contributes ₹224.04, coffee ₹232.25, and Dark Vanilla only ₹161.90. A sitewide percentage hits your dearest scent hardest. If you must discount, consider excluding the premium band, or discounting a fixed rupee amount that every scent can carry.

The test behind "similar perceived strength"

Your title rests on a claim: coffee needs more fragrance than lavender for similar perceived strength. That is a test result, and it should come from a matched-strength test rather than an impression. Pour both scents at a ladder of loads in the same wax, jar and wick; cure them the same way (Roasted Coffee's page says to cure soy candles at least 48–72 hours before burn testing; many makers judge again at day 7 and 14); burn them in the same closed room; and have a blind panel say which coffee load matches lavender's approved load for strength across the full life of the candle. The approved loads you price from are the matched pair, not the strongest each can go.

Testing two oils at three loads each (three candles per load, 18 candles) needs 126 g of Lavender and 162 g of Roasted Coffee; add Dark Vanilla's ladder and the three oils' bottles come to ₹3,440.00 for two 100 g bottles each. The method for finding the lowest load that still throws is the lowest effective load guide; whether to optimise dosage, wax, wick or fragrance first when cutting fragrance cost is the fragrance-cost order of work. If any scent's oil changes later, its approved load and its COGS go back to the start: what to retest when the fragrance changes.

The oils and wax in the worked range

Four CSI products from the worked range, chosen on page statements, price ladders and stock on 4 October 2026; every size shown is in stock. CSI publishes no throw or burn data, so nothing is ranked on performance. Each oil table prices the grams at its worked approved load in a 200 g candle.

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