My Fragrance Performs Beautifully in Wax Melts but Poorly in Candles — What Does That Tell Me About Its Interaction with the Wick and Combustion System?

What a strong melt proves, and what it can't

In a warmer, the whole portion of wax is liquid, spread across the dish and held warm from below, with no flame burning any of it. Fragrance evaporates from that surface into the room. In a candle, the wick makes its own pool: it starts small, spreads towards the glass over the first hours, and its depth and warmth depend on the wick, the wax, the oil and the jar. Some of the fuel is also burned at the flame. These are general tendencies, not measurements of any CSI product, and CSI publishes no temperature or throw data for warmers or candles.

So a strong melt, fairly made, rules out "this oil can't leave wax" and "this oil is too weak at this load". It does not rule out that the candle's pool never reached what the warmer gave the melt: full surface, even warmth. That is why the matrix reads the candle's pool rather than its scent: the scent is already known to be faint. What you need to know is why the pool couldn't do what the dish did. If you want the fuller mechanism of melts against wicks, with the cost of a melt cube against a candle, that is the melts-versus-candles post; here the melt is a control, and the matrix turns it into a decision.

Was your melt a fair control?

A melt made at the melt figure and a candle made at the candle figure are two different recipes. Fresh Strawberries' page, for example, gives "6-9% for candles" and "8-12% for wax melts". A melt at 10% beside a candle at 7% carries 43% more oil, gram for gram (worked example), before any difference in format. Five things have to match before the melt can act as a control:

On CSI's convention the load is a percentage of total weight: 8% of a 150 g candle is 12 g of oil in 138 g of wax, and 8% of a 20 g melt portion is 1.6 g. 8% of total is 8.70% of wax, inside Fresh Strawberries' 9% candle maximum on either reading of its basis, and far inside CSI 464's "up to 10%". The melt figure on an oil page is a melt figure, not a candle load, and no CSI wax page states a melt ceiling.

Why the candle falls behind

Ranked most common first. The ranking is editorial judgement, not measured data; CSI publishes no failure statistics. Each cause has a pool signature, which is what the matrix columns read.

Rows 1 and 2 are the common ones and the cheap ones: a wick step. Row 3 is the case this page is really about, where the pool is doing all it can and the melt still wins because the dish offers more warm surface. Row 4 looks like row 3 from the pool alone; if your jar is tall with the pool far below the rim, run the vessel-swap test before buying a wider jar.

Pouring a fair control: one pot, two formats

Costs are worked examples and exclude labour, freight, packaging and GST. If you own the wax, jars, wicks and an electric warmer, the new cash is ₹359.90. If you have no warmer, use an electric one rather than a tealight burner; a flame under the dish undoes the point of the control.

The matrix, cell by cell

A wick step that closes the gap is the good outcome: one pack of wicks and no change to your jar, price or range. Keep the flame honest when you step up, though. More heat can bring soot, a carbon cap and a hotter jar in the final third, where heat builds as the wax level falls (a tendency). Approve a step only after a full burn-down, stopping with about 1 cm of wax left, as common practice.

Pool area: the arithmetic behind a wider jar

A pool's surface is π × r², so area grows with the square of its width. Worked example: a candle pool 6.0 cm across has 28.27 cm² of surface; a warmer dish holding wax 9.0 cm across has 63.62 cm², 2.25 times as much. Measure your own dish and pool with a ruler across the liquid; these are illustrations, not CSI data. The 150 g Clear Glass Jar with Golden Lid lists an outer diameter of about 7 cm (38.48 cm² as a full circle), and its pool is smaller than that because the glass has thickness: a 6.5 cm pool would be 33.18 cm². No CSI jar listing states an internal diameter.

That is why the shaded cell points at width, not wick. A wider jar gives the flame more pool to keep warm, and the room more surface to receive scent from. It is also a different candle. The Apothecary Glass Candle Jar with Dome Lid lists an outer rim of about 10 cm; if its pool reached 9 cm across, that would be the 63.62 cm² of our dish example. But a 500 g candle at 8% needs 40 g of oil and 460 g of wax, and a jar that wide may need two wicks. Moving to a wider jar means a new wick bracket from scratch (the wider-jar wick adjustment, one, two or three wicks) and a new price point: ₹596.84 in oil (at the 100 g price), wax and jar before wicks, against ₹209.73 for the 150 g candle.

When the right product is a melt

If you land in the shaded cell and a wider jar doesn't suit your range or price, the honest option is to offer that scent as a wax melt only, and keep your candle range to oils that throw from your jar. That keeps one clear standard for the candles and uses the oil where it has already proved itself. Two cautions. First, the melt figure on an oil page is the oil maker's figure for melts; no CSI wax page states a melt ceiling, so test your melt recipe for sweating and surface finish before you sell. Second, melts are a separate product with their own packaging, labelling and costing; the cost per melt cube against a candle is worked through in 3131, not here.

If the matrix says wick, your per-candle cost barely moves: one wick step. If it says wider jar, your candle changes size and price. If it says melt-only, you drop a candle SKU and add a melt SKU. In our judgement the first outcome is the common one; the other two are real, and it is better to know than to keep pouring a candle that can't do what its melt does.

Products for each cell

Five items: the worked-example oil, melt containers for the fair control and the melt-only route, the wick step most cells call for, a wider jar for the shaded cell, and a mould for shaped melts. Chosen on page statements, price per unit and stock on 26 September 2026; CSI has no measured throw data, so nothing is ranked on throw. The oil table shows every size, 150 g candles at 8%, and how many control pots (27.2 g each) a bottle covers.

Frequently asked questions