My Candle Has Good Melt-Pool Diameter but Weak Hot Throw — Why Might Buying a Larger Wick Be the Wrong Solution?

Why a bigger wick is the wrong buy here

The worked example: CSI's Clear Glass Jar with Golden Lid (150 gram), outer diameter about 7 cm on its page, so about 6.3 cm inside on our 0.35 cm wall assumption: 31.17 cm² of pool. You pour 150 g at 6% Lavender in CSI 464 (9 g + 141 g) on an Eco C1. The pool reaches the glass by burn 2, sits at a sensible depth and the flame is calm, but the room barely smells of lavender.

That pool is the evidence. Hot throw is fragrance evaporating off the melted surface; a full pool of 31.17 cm² is all the surface this jar has. A bigger wick can make the pool deeper and hotter, and some makers report a small throw gain from that, but it is bought with heat: taller flames, more carbon on the wick, soot, and a jar that runs hotter in its final third. If you want to see that trade measured with stop conditions, the good-flame, weak-throw post owns the guarded wick-up experiment. If you want the full throw troubleshooting sequence, including whether a 7 cm candle is simply small for your room, that is the perfect-pool, little-room-fill post. This page owns the purchase: what to buy instead, and what the wrong buy costs.

What to buy instead, arm by arm

Arm 0: cure, with candles you already have

If you judged throw at day 1 or 2, you haven't tested it yet. The Lavender page states no cure time in the text we captured; the Blue Ocean page says "Cure soy wax candles for 48-72 hours before burn testing", and many makers go further and check soy at day 3, 7 and 14. Keep two or three candles from your existing batch aside and smell them on those days. If throw rises with time, the purchase was patience.

Arm 1: load, inside both ceilings

The Lavender page states "Recommended fragrance load 6-10% for candles"; CSI 464 states "Fragrance Load Up to 10%". The lower governs, and both say 10%. But the wax page doesn't say whether that 10% is of total or of wax weight. Series practice: plan on CSI's total-weight convention and keep the top rung at 9% of total (9.89% of wax), which is inside 10% on either reading; 10% of total would be 11.11% of wax. So the arms are 8% (12 g + 138 g) and 9% (13.5 g + 136.5 g), three candles each, 76.5 g of Lavender, from one 100 g bottle with 23.5 g left. Your current 6% is 6.38% of wax weight.

Maximum load is not best load. More oil past what the wax holds tends to sweat and can make the flame smaller, so read the 9% candles for both throw and burn. If a higher load starts to shrink the flame or narrow the pool, the wick question reopens, for a different reason; that cost-benefit is the 6% to 9% load-rise post.

Arm 2: a second oil, at the same load

Three candles of Blue Ocean at 6% (27 g from a 50 g bottle, 23 g left), same wax, jar, wick and pour. It is a system check: if Blue Ocean fills the room and Lavender at the same load doesn't, wax, jar and wick are not the bottleneck, and the answer lies with the Lavender load or the oil. If neither oil throws, look at cure, room size and your test method before buying anything else. It is not a ranking of oils: CSI has no measured throw data, and different scents read differently at the same load.

The control: what you make today

Three candles at 6% on C1, from the oil, wax and wicks you already hold. Without them, the new candles are compared with a memory.

New oil: ₹787.00. With two bags of wax: ₹1,801.80. Every candle stays on the same C1: change one thing per arm, or you won't know what changed the throw.

An oil arm against a wick arm, in rupees

Read the last column honestly. A load rise is the dearer production change: 8% instead of 6% adds ₹14.68 a candle at the 100 g price, against ₹3.54 for a C2. If the decision were only about rupees, the wick would win. It isn't, because the wick does not address the cause: if 6% Lavender is too little fragrance for your room, a hotter flame burning the same 6% is still 6%. The load arm costs more because it buys the thing you are short of. All costs here exclude your jar, labour, freight, packaging and GST.

For the wider question of which lever to pull first when a cured candle smells weak, and what each one costs to test, see the change-order cost ladder. This page's narrower point: when the pool is already right, the wick is the last lever, not the first.

Running the twelve candles

Materials for all twelve: ₹1,610.18, excluding jars. If none of the arms improves throw, stop buying: the room may simply be large for a 150 g candle, which is a product decision, not a wick or oil purchase (room-matching).

How a wick bought for throw becomes dead stock

Wicks are cheap, which is what makes this mistake common. The sequence goes: weak throw, "maybe the wick", a pack of the next size up, three candles, no real change, and the rest of the pack has no job. It isn't the wick you use, and it isn't approved for anything else. CSI's tabbed wicks cost the same per wick in every pack, so a bigger pack never earns back its size through price.

And the bigger cost is not the pack. If the C2 "seems a bit better" and production moves to it, every candle gets ₹3.54 dearer and runs hotter, for a throw gain that was really the cure catching up. At 300 candles a month that is ₹1,062.00 a month in wicks for no reason, plus whatever the extra heat does in the final third. A wick change for throw is also a wick change for burn: the full-life approval starts again. If production has already moved to the bigger wick, going back down, and what to do with the stock, is the wicking-down transition post.

From the winning arm to production

Suppose 8% passes the full life with a clean burn. Your wick stays C1, and the production wick order is the series formula: wicks = candles × wicks per candle × (1 + allowance); at 300 candles a month and a 5% allowance, 315 C1, covered by three 100-packs and a 20-pack (₹1,888.00). What changes is oil: 3,600 g of Lavender a month at 8%, covered by three 1 kg, one 500 g and one 100 g (₹18,823.00). At the 1 kg price the step from 6% to 8% adds ₹4,242.24 a month at that volume (₹4,403.34 at the 100 g price), a real cost to put against the throw you gained.

Oil reorder point, worked example: about 120 g of Lavender a day; with a 10-day order-to-bench time and a week of safety stock, reorder at about 2,040 g. CSI dispatches from Pune and publishes no lead times or stock depth, so confirm on WhatsApp before a festive run. If the second oil won instead, it needs its own wick check on the full life before production: an approval for Lavender does not carry over (the fragrance-changes-the-wick hub).

What to buy, and what to skip

Four items, chosen on page statements, price and stock on 1 October 2026. CSI publishes no throw or wick-performance data, so nothing here is ranked on burn or scent results. Oil candle counts use 12 g per 150 g candle at 8% and 9 g at 6%.

Skip for this problem: Cotton Braided Wicks (₹120.00 for 10), Performance Wooden Wicks and any double-wick fixture: all change heat or construction, none changes fragrance. A different wax is a bigger test than this page needs; try load and cure first.

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