I Want to Launch 20 Fragrances in the Same Jar — Why Is It Risky to Approve One Wick Based Only on a Single Fragrance?

Why one approval cannot cover twenty fragrances

Launching twenty fragrances in one jar is an efficient idea. One jar, one wax, one label format, one wick in the stores cupboard. The temptation is to run a careful wick test on one fragrance, usually the one you like best or expect to sell most, and pour the rest on the same wick. It saves weeks. It also means nineteen of your twenty products have never been burn-tested as finished candles.

Each fragrance oil is a different fuel. Some are built from light, quick-evaporating materials; some lean on heavy woods, resins or vanillin; some sit in between. At the same percentage in the same jar, those differences can decide whether a wick burns cleanly, collects carbon, smokes on the rim or struggles to open a pool. A wick approved on a mid-weight oil can be oversized for a light citrus and undersized, or overloaded, for a rich vanilla. You will not know which until customers burn them.

The commercial risk is uneven, too. The oils most likely to misbehave on a borrowed wick are often the warm, rich ones, and those are frequently the fragrances that sell well in gifting seasons. A soot complaint on a bestseller costs far more than the test that would have prevented it.

Why the favourite oil is a poor test subject

The fragrance chosen for a single approval is usually a comfortable middle-weight: a lavender, a rose, a clean fresh scent. Those oils often forgive a wick that is a little off in either direction. The approval then feels robust because the test oil was undemanding, and the true limits of the wick only appear when a heavy gourmand or resinous wood goes into the same jar. If you must test only one oil, the heaviest in the range tells you more than the most popular.

How far a twenty-oil range can spread

To see the spread, look at a plausible twenty-oil range using only what CSI's product pages publish. The groups below are working hypotheses based on those published notes and figures, not measured burn behaviour; the point of testing is to confirm or correct them.

Even on paper, the range spans oils with no vanillin and oils where vanillin is published, flashpoints from 85°C to above 200°C, and profiles from bright citrus to resin-heavy oud. It would be surprising if one wick suited every member at the same load. It is possible, but it has to be shown, not assumed.

Three testing plans, and what each costs

There are three realistic ways to approach the launch. The comparison below counts 200 g candles at 8%, so 184 g of CSI 464 wax each, with wicks priced at the Eco Thick (C2) rate of ₹9.44 each purely for the comparison. Jars and oil are left out here and discussed after.

The working: wax is candles × 184 g × ₹507.40 ÷ 1000, so for 120 candles, 22,080 g gives ₹11,203.39, and for 56 candles, 10,304 g gives ₹5,228.25. Wicks are candles × ₹9.44, so 120 × ₹9.44 = ₹1,132.80 and 56 × ₹9.44 = ₹528.64. The grouped count comes from four anchors × three wicks × two candles = 24, plus sixteen other oils × two confirmation candles = 32, giving 56 in total; the full matrix is 20 × 3 × 2 = 120. The grouped plan tests every fragrance as a finished candle for less than half the candle count of the full matrix.

Oil is the bigger variable cost, because each oil needs its own sample. In the grouped plan, each anchor oil needs six candles at 16 g, or 96 g, so a 100 g pack covers it. Taking Citrus Lemon, British Rose, Dark Vanilla and Woody Oud as anchors, the four 100 g packs cost ₹300.00 + ₹342.20 + ₹790.00 + ₹453.12 = ₹1,885.32. Each of the other sixteen oils needs two confirmation candles, 32 g, which a 50 g pack covers where one is listed.

Set against the value of a launch, those sums are small. The single-oil plan saves money only on paper; its real cost arrives as returns, replacement candles and reviews that mention soot, and none of those appear on a test budget.

Running the grouped plan

Launch in waves if the testing takes time

If the full grouped plan will not finish before your launch date, launch the fragrances that have passed and hold the rest. A launch of twelve proven fragrances followed by eight more a few weeks later is a better business outcome than twenty fragrances with unknown burns. Customers remember a sooty jar far longer than they notice a staggered range.

It also helps to keep the number of different wicks in production small. If the grouped testing shows that three groups share one wick and the gourmands need another, you have a two-wick range, which is still simple to run. Label the wick on each fragrance's batch sheet, and keep the wicks physically separated in stores so they cannot be swapped.

When you add a twenty-first fragrance later, the grouped system pays off again. Decide which group the new oil most resembles, pour two confirmation candles on that group's wick, and only run a full ladder if it fails. Growth then costs a couple of test candles per fragrance rather than a fresh project each time.

Finally, pull one candle from each early production batch and burn it as a check. Early batches are where differences between the test bench and full-scale pouring appear, and one candle per fragrance per batch is a cheap way to confirm the approval holds.

Where this page fits

CSI already has guides that cover parts of this question. This page answers the specific oil-in-wax question above; these go deeper on the rest:

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