My 9 cm Jar Burns Well with Two Cotton Wicks but I Want Wooden Wicks for Appearance — Do I Need to Restart the Entire Burn-Test Sequence?

What a wooden wick changes, and what it doesn't

A cotton wick draws melted wax up a braided or twisted fibre and burns it in a narrow, roughly round flame. A wooden wick is a flat strip; it draws fuel along its face and commonly burns with a wider, lower, flatter flame and its familiar crackle. That is a tendency described by many makers, not a CSI measurement, and it is enough to explain why nothing about the wick transfers: the flame's shape, where its heat lands in the pool, how fast carbon builds, how the wick behaves as the pool deepens and how it should be trimmed all belong to the construction.

What does not change is the candle around the wick. Your jar's inside diameter on our assumed 0.35 cm wall is 8.3 cm, a pool area of 54.11 cm² to the glass; the fill is still 24 g of oil and 276 g of wax in a 300 g candle at 8%; the oil still sits inside both ceilings. None of that depends on what is burning in the middle, so none of it needs re-proving. The logic is the same one the retest-scope post for a new jar width uses the other way round: change one component, and retest only what that component touches.

Two page claims are worth reading carefully. The Performance Wooden Wicks page says wooden wicks "tend to burn more cleanly than cotton wicks, with less smoke and soot" and are "long burning". Treat both as the page's claims, and as reasons to test, not to skip testing. A cleaner flame in someone else's candle says nothing about the flame in your 9 cm jar with your oil at 8%, which is why the cotton pair stays in the round as the control.

The carry-over ledger

Write the ledger before you pour. Anything marked "kept" is fixed for the round at exactly the value in your cotton file; if you are tempted to change one of those too, stop, because the round then tests two things at once.

Notice how short the "restarts" list is, and how much it matters. Four of the five restarted rows are about one question: where the new flame puts its heat, from the first pool to the last centimetre. That is why the answer to "do I restart the entire sequence?" is no in hours saved and yes in rigour: you skip the measuring, the load work and the cure ladder, and you do the full-life burn-down again.

One ledger item deserves a warning: the jar batch. If the jars for the wooden round come from a new delivery, they may not match the ones you measured. Mass-produced glass varies between batches; measure the inside of three new jars at the rim, middle and base before you trust the ledger's first line.

One listing, no widths: what "a size" means here

In a cotton bracket you step C1 → C2 → Cotton Braided, or pair C1s and C2s. Wooden wicks elsewhere are commonly sold in several widths so that makers can step up and down in the same way. CSI's Performance Wooden Wicks are one listing, sold in packs of 10, 50 and 100, with no width, length or jar range stated in the text we captured. So at CSI the wooden "bracket" has exactly two rungs: one wick centred, or two wicks on a line.

In pool terms, that is a big jump. One centred wooden wick serves the whole 54.11 cm² pool; each wick of a pair serves about 27.05 cm². If your jar sits in the band where two cotton wicks worked, the answer may be the wooden pair; it may also be that one wooden wick's wider flame covers the pool on its own. Nothing but the round tells you which, and the two-rung limit is exactly why we bother to state it:

The Palo Santo page makes the same point in its own words: "Wick Recommendations: Eco wicks or wooden wicks for an even, clean burn. Wick testing is recommended based on your container and wax type." Both constructions, no size, a test. That is the honest position for any oil page to take, and it is the one this round follows.

The requalification round

Pour all six candles from one batch on one day, into jars from the batch you measured. Label the bases C-a, C-b (cotton control), W1-a, W1-b (one wooden) and W2-a, W2-b (two wooden). CSI 464's page states "Pour Temperature 80°C – 90°C"; if your jar has no stated heat rating, pour at the low end and pre-warm clean jars (our judgement). Cure all six for the same time: the Palo Santo page states 48–72 hours for soy; many makers wait about a week, which is what the calendar above uses.

Cash outlay from nothing is ₹2,601.90 (Palo Santo 100 g and 50 g, two 1 kg bags of CSI 464, one wooden 10-pack and one C2 10-pack), or ₹3,000.90 with the Wick Setting Tool. The oil is tight on purpose: 6 g is left, so a split arm that needs two more candles (48 g) needs another 50 g bottle, and the 344 g of wax left covers only one of them, so add another 1 kg bag. Costs are worked examples and exclude labour, freight, packaging, GST and your jars.

Reading the round

Read the control first. If the cotton pair behaves the way your file says it does, the round is valid and the wooden arms can be judged against it. If the control changes too (a new ring, a bigger flame, soot it never had), something other than the wick moved: a new wax lot, a jar batch, a room with a fan. Fix that and repeat the round; don't blame the wooden wicks.

Two things are worth saying about the first row. First, a single wooden wick passing in a jar where cotton needed two is not a contradiction: a flat flame spreads heat differently, and a single wick has fewer ways to fail (one flame, one position, nothing to drift toward its neighbour). Second, "calm" at halfway means calm by your file's standard: flame height inside the range you used for cotton (many makers use about 2.5–5 cm as a practical range, a rule of thumb), no flame lean at the glass, pool depth not running far past the common 0.5–1 cm target, no heavy soot on the wall.

Wooden wicks bring one failure cotton rarely shows at the top: going out by themselves as the pool deepens. Commonly that is a trim or exposed-height problem rather than a size problem, which is why the verdict table sends it to the wooden routine first. Only when a wooden wick drowns with the routine followed exactly is it evidence about the construction.

What the look costs per candle

In the worked example the wick is the only line that changes: ₹144.43 of Palo Santo, ₹140.04 of CSI 464, and then either a cotton pair or wood. Per 300 g candle, jars excluded:

So one wooden wick adds ₹40.12 a candle and a wooden pair adds ₹99.12, about 33% on the cotton candle's materials, or ₹9,912.00 over 100 candles at 10-pack prices. At 100-pack prices the pair premium falls to ₹63.72 a candle. A wooden pair costs 82% of the oil in the same candle. That is a real design cost, and a reason to hope the single wooden arm passes.

The "Save 25%" label, worked out

The 10-pack is ₹590.00, ₹59.00 a wick. The 50-pack is ₹2,360.00, ₹47.20 a wick: a real saving of 20%, not the 25% on its label (a true 25% off five 10-packs would be ₹2,212.50). The 100-pack, labelled "Save 30%", is ₹4,130.00, ₹41.30 a wick, and that label does work out at 30%. We would rather you read the per-wick figure than the badge.

One more cost is time. The worked-example calendar runs 23 days from pour to verdict. Poured on 30 September 2026, that is a verdict around 23 October, 16 days before Diwali on 8 November 2026 (40 days from 29 September 2026). That is enough time for one round, not two.

What to buy, and what to skip

Five items, in the order the round needs them, chosen on page statements, price and stock on 29 September 2026. CSI publishes no wick-performance data, so nothing is ranked on burn results. Oil candles are counted at 24 g (300 g fill) and 12 g (150 g).

Frequently asked questions