My Wooden-Wick Candle Burns Faster Than My Cotton-Wick Version — How Do I Compare Them Fairly?

Why your current comparison is not one

Almost every wooden-versus-cotton comparison a maker runs by accident is contaminated in at least three ways, and each of them points in the same direction — toward whichever candle was made second, with more practice and a better-chosen jar.

The first contamination is the vessel. Wooden wicks tend to get poured into the wider, shallower jars that suit the aesthetic, and cotton into whatever was already on the shelf. Diameter changes everything about how hard a wick has to work, so a comparison across two diameters tells you about the jars. The second is cure. If the wooden candle was burned four days after pouring and the cotton one three weeks later, you have measured cure time. The Luxury Soy Wax Chunks page asks for a minimum of 48 hours and ideally one to two weeks before burn testing, and the gap between those two extremes is wide enough to swamp a wick difference.

The third is session length, and it is the one that quietly destroys the arithmetic. If you burned the wooden candle in two long evenings and the cotton candle in six short ones, you did not just change the hours — you changed the number of relights, the number of trims, and the amount of time each candle spent reaching its working pool from cold. A candle lit six times does a lot of warming up. Equal total hours split differently are not equal sessions, and grams per hour computed across unequal session structures is not a comparable figure.

There is also a fourth difference worth naming, because it is real and it is not a flaw in your method: wooden and cotton wicks are not interchangeable as a product experience. They look different in the jar, they sound different, and a customer buying one is not expecting the other. That means the comparison is not purely technical. You may finish the test with a clear winner on grams per hour and still choose the other one — and that is a legitimate decision, provided you made it knowing what it costs in hours and in rupees.

The six conditions to hold

Write these six on the build sheet before you melt anything, and fill in both columns. If a cell differs between the two candles, the test is not ready to run.

The size match that does not exist

This is the part that most comparison guides skip, and skipping it is what makes their conclusions sound more authoritative than they are. A proper like-for-like wick comparison would match the two constructions on a shared dimension — equivalent width, equivalent rated diameter — so that only construction varied. That match is not available in this range, and the pages say so by saying nothing.

So the honest framing of your test is this: you are comparing the wooden wick CSI supplies with the cotton wick CSI supplies, as supplied, in your jar. That is a genuinely useful comparison — it is exactly the decision you have to make as a buyer — but it will not support the sentence "wooden wicks burn faster than cotton wicks". A single wooden product versus a single cotton size in one 6 cm jar cannot carry a general claim, and anyone making that claim from the same evidence is overreaching.

Two practical consequences follow. First, when the result goes against the wooden wick, the available response is not "try a narrower wooden wick" — there is no narrower one listed. It is to change the jar, the fill, the count, or to accept the result. Second, when the result goes against cotton, you do have one step: Thick (C2) down to Thin (C1), or across to cotton braided at ₹12. The asymmetry is worth knowing before you start, because it tells you which outcome you can act on cheaply.

The comparison, step by step

Two candles, one melt, two evenings, one subtraction each. The whole thing is a fortnight including cure, and almost all of that is waiting.

What each wick costs per candle

The hours half of this decision is measured. The money half is already published, and it is larger than most makers expect. Wick is normally a rounding error in a candle's bill of materials; between these two constructions it is not.

Now put the two halves together, because that is the only comparison that means anything commercially. Suppose your measured pair really is 7.9 g/hr against 6.2 g/hr, giving 14.0 and 17.8 hours from the fill. If the faster candle is also the dearer one, the decision is easy and it is not the wooden wick. If the faster candle is the cheaper one, you have a genuine trade — fewer hours for ₹35.40 less material — and the answer depends on what you charge and what your customer thinks they bought. Work it in cost per hour of candle, not in cost per candle. That reframing is the subject of the economics cluster later in this series, and it is where this test eventually pays for itself.

What to buy for the comparison

Both sides of the pair plus the instrument. Buy the smallest pack of each — on two of the three, small packs cost exactly the same per wick as large ones.

What the result is allowed to mean

You now have two rates, two sets of appearance notes, two wick costs and — if you ran the pair to the end — two residue weights. Here is the honest boundary around what you can conclude from them.

One last thing to keep in the file alongside the numbers: the reason you ran the test. If you are choosing between constructions for a new range, the result is a purchasing decision and the cost column matters as much as the rate. If you are explaining to yourself why an existing product changed behaviour, the same pair of candles is a change-control question instead, and the rule there is simpler — a new wick is a formulation change, and it comes with a fresh full-life burn test even when nothing else moved. Both uses are legitimate. They just lead to different next steps.

Frequently asked questions