My Corrected Wick Burns Cleanly but Produces Slightly Less Hot Throw — Should Safety and Combustion Quality Take Priority Over Maximum Fragrance Intensity?

Your situation, made precise

The worked example, labelled: a 150 g candle at 8% (12 g of British Rose and 138 g of Luxury Soy Wax CSI 464, load as a percentage of total weight) in CSI's 7 cm Clear Glass Jar with Golden Lid (150 gram). On Eco C2 it sooted by the third hour. On Eco C1, one rung down, three candles burned to the end cleanly. But in your workroom the C1 candle seems a little less strong than the C2 one did, and a customer has said she "loved how strong the old one was". You want to know whether you've given up something you shouldn't have.

This post owns the trade-off when the wick fix costs a little throw, the blind-panel method for deciding whether the loss matters, and the throw-recovery levers that don't add wick power. Its sibling about a candle with excellent throw that runs the jar too hot is the hot-jar throw decision; whether a slightly smaller pool is still acceptable is 6990. Why a bigger flame doesn't mean more fragrance in the first place is large flame, weak hot throw.

Why combustion is a gate and throw is a ranking

It's tempting to score candidates on everything at once (throw 8 out of 10, soot 6 out of 10) and pick the best total. That's how sooting candles get approved: a strong throw carries a combustion fault over the line. The order that avoids it is simple. Gate first: every candidate must pass your written combustion limits (flame in band, no smoke, mushroom within your limit, pool depth within your limit, glass within your limit, the top, middle and bottom judged separately). Rank second: among candles that pass, prefer the stronger throw, the lower cost, the simpler wick stock. A candidate that fails the gate never reaches the ranking, whatever its throw.

Why the clean wick tends to cost a little throw: a smaller flame commonly puts slightly less heat into the pool, and hot throw comes from fragrance evaporating from that heated pool. The over-sized wick's "extra" throw was partly a symptom of the same excess heat that made it soot. The published posts on that illusion are when an oversized wick seems to give better throw and why larger wicks are the wrong route to stronger candles; the method for wicking down without losing the scent is wicking down without destroying throw.

Why a clean candle can seem weaker: causes, ranked

The ranking is our judgement for "the clean candle on the smaller wick seems weaker than the old sooting one". Signs are common observations, not CSI data; CSI has no measured throw data for any oil.

Causes 1 and 2 cost nothing and account for a lot of "it's weaker". Cause 3 is real but usually small when the smaller wick still reaches the glass; if it doesn't, that's 6990's question, not a throw question. The fuller list of hot-throw variables is large pool, weak throw and the customer-versus-maker version is a customer says the candle has no scent; the formal method for an objective throw test is creating a more objective hot-throw test.

How much throw loss is acceptable: the blind panel

You'll lose most head-to-head contests against a candle with more wick power; that's what more wick power does. So don't make the head-to-head the test. Set a sufficiency question, write the pass line before anyone smells anything, and use the head-to-head only as context.

Recovering throw without wick power: the twelve-candle test

The levers in order of cost: time (cure longer before judging), the pool (make sure the clean wick reaches the glass on burn two), conditions (the panel room), load within both ceilings, oil. The worked example tests the first and the fourth together, because those are the two most likely to move this candle. Four arms, 12 candles, every one poured the same day from one wax lot and one oil lot:

The CSI buy list and the step to production

CSI's sized, tabbed wicks are three rungs, C1 → C2 → Cotton Braided, with no sized, tabbed wick between C1 and C2, none smaller than C1, and one wooden-wick listing with no widths. For this reader that settles the wick question: C2 soots, C1 is the only smaller step, and there's no in-between size to buy back a little power. That's a limit of our range, and we'd rather say so than sell you the wrong wick. If your test shows C1 is genuinely too weak and C2 genuinely sooty, ask on WhatsApp; the between-sizes options are the hub's job (6981).

Argued against our own interest: the cheapest throw lever, a longer cure, costs nothing and sells nothing. Try it before you buy any oil. And because C1 and C2 cost the same per wick at every pack size, there's no saving in a bigger wick pack; buy the 20-pack for the test and production quantities after approval. C1 is ₹3.54 a candle cheaper than C2, a side effect, never the reason.

The step to production quantity

Only after the chosen arm passes both gates. Worked example, labelled: 300 British Rose candles a month on C1 plus 2% is 306 wicks: 3 × 100 + 20 = 320 for ₹1,888.00. At 8% the month uses 3.6 kg of oil; if arm D wins, 4.05 kg, ₹1,380.60 more a month at the 1 kg price. Reorder point = daily use × your lead time + safety stock; CSI publishes no lead times, so ask on WhatsApp. How many repeat candles before production is 6991.

What to buy, and what to skip

Four items, chosen on page statements, price and stock on 7 October 2026. CSI publishes no throw, flame or soot data for any oil or wick, so nothing is ranked on performance.

Skip for now: a second oil until cure and load have been tested; larger oil sizes for the test; Cotton Braided (a rung above the wick that sooted); and any production wick pack before both the combustion gate and the panel have passed.

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