I'm Launching 20 Candle Fragrances — Do I Need to Test 6%, 8% and 10% for Every Scent or Is There a Faster Formulation Method?

Why a full ladder is mostly repetition

The full ladder exists for good reasons: each fragrance oil is a different mixture, and some scents need more or less than a house default to perform in your wax (I'm Making Different Candle Fragrances in the Same Soy Wax — Should Every Scent Automatically Use the Same 8% Fragrance Load? explains the mechanisms). But look at what the ladder does for a scent that is clearly strong and clean at 8%. The 10% candle tells you it is still strong — which you knew — at extra cost. The 6% candle might tell you it is also fine lower, which matters only if the saving is worth having. For a scent that costs ₹3.07 a gram at 1 kg, dropping two points saves ₹12.27 a candle. For one that costs ₹8.96, it saves ₹35.84. The ladder is worth running where the answer changes something.

Scale that across twenty scents and the cost of the "test everything" approach is mostly time. Sixty candles at a 4-hour test burn is 240 candle-hours of burning, each one needing a room, a timer and at least one assessor who has not already smelled the candle next to it. Most makers do not have the rooms or the noses for that in the weeks before a launch, and rushed judging is worse than fewer, better-judged candles. Comparing loads objectively covers what a properly judged burn involves.

The honest cost of screening is in two rows: you will not find out whether your cheapest clear-pass oils could have gone lower, and you will not know whether a clear pass could have been "even stronger". The first is a small, recoverable saving you can test later, once the range is selling. The second is rarely worth chasing — the 8% candle that beat the 10% and I Reduced My Fragrance Load from 10% to 8% and the Candle Suddenly Burns Better — How Can Less Fragrance Sometimes Produce Better Overall Performance? show why more oil is not always more scent.

The two-round method

Sorting twenty scents into three bins

A score sheet makes the bins objective. For each coded candle, score hot throw at a fixed distance (say two metres) at one hour and two hours on a 0–5 scale, note the burn (pool reach, flame, soot, surface oil), and record cold throw from the lid. Several assessors are better than one. The table below turns scores into bins; the cut-offs are working suggestions to adapt, not a standard.

How many scents land in each bin depends entirely on your oils, wax and wick, and we cannot predict it: CSI publishes no throw or dosage data for any oil. For costing, this page uses an illustrative split of 11 clear passes, 6 borderline and 3 fails, with four of the clear passes on dear oils getting a step-down candle. That gives 4 + 6 + (3 × 2) = 16 round-2 candles. If your split is worse, round 2 grows; even with ten borderline scents and five fails it stays well under sixty.

Full ladder vs screening, priced

Both routes buy the same twenty 50 g bottles, because round 1 plus any round-2 candle fits in 50 g. The difference is everything else. Wax is priced as Luxury Soy Wax Chunks with a 4% working allowance for pour loss; jars as White Matte Glass Jars in packs of five; wicks as Eco Candle Wicks.

The screening route saves ₹4,384.60 in materials here, and 96 candle-hours of burning. The material saving is real but modest; the time saving is what gets a twenty-scent range to launch on schedule. It also means each candle can be judged properly, rather than rushed through a queue of sixty.

Where the step-down pays

Round 2 gives a step-down candle only to clear passes on your dearest oils. The reason is arithmetic. In a 200 g candle, every point of load is 2 g of oil. For the four dearest oils in this twenty, priced at their 1 kg rate, here is what one and two points are worth across 1,000 candles:

Across those four scents, passing at 6% instead of 8% would save ₹1,10,936.00 over 1,000 candles of each. For the cheapest oils in the twenty, the same step saves less than half as much per scent, which is why screening leaves them at 8% for now. Once the range is selling, you can run a proper step-down on any scent with the method in finding the lowest load that still throws. For the single-oil version with a formal yes/no test, see I'm Using an Expensive Fragrance Oil — How Do I Determine Whether 7% Performs Just as Well as 10% Before Committing to Commercial Production?.

The twenty oils in the example

The example uses the first twenty oils in the Fragrance Oils collection's best-selling sort on 24 September 2026, simply because that is a list many makers start from. It is not a recommendation that these twenty belong in your range, and position in the sort says nothing about how any oil performs in your wax. All twenty are in stock at 15 g and 50 g; note that the Chocolate Fudge 100 g was out of stock on the pull date.

Once your bins are settled, the production side follows. Group scents by final load on the batch sheet, and size each scent's first order from its tested load, not from 8% by default — the bulk-dosage guide does that maths, and deciding which scents deserve 1 kg purchases covers which scents to buy by the kilo. If you have more samples than launch slots, I Have 30 Fragrance Samples but Only Want to Launch Five Candles — What Testing Sequence Can Eliminate Poor Performers Before I Waste Wax and Wicks on Full Burn Tests? handles the elimination problem, and I Want to Compare 20 Candle Fragrance Oils Objectively — How Do I Create Identical Test Candles so Wax Quantity, Fragrance Load, Wick, Jar and Cure Time Remain Controlled? sets out how to make twenty test candles truly identical.

Frequently asked questions