How Do I Compare Two Wax-Fragrance Combinations Using Stability, Hot Throw, Burn Quality, Summer Resistance and Cost per Finished Candle?
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How do I score hot throw fairly? Same burn time, similar closed rooms, more than one person rating blind on a fixed scale.
What is cost per finished candle? Wax, oil, jar and wick per candle, excluding packaging, labels, labour, shipping and GST, divided by the share of candles that pass QC.
Where does the reject rate come from? Your own QC log from the trial and pilot. Do not borrow a figure; measure it.
Five criteria, three stages
When you have two candidate formulas, each a wax, an oil, a load, a wick and a jar, it is tempting to build a weighted scorecard: so many points for stability, so many for hot throw, and so on, then add them up. That method has a flaw for sweating problems. It lets a combination that fails stability win on throw and price. A candle that sweats in the warehouse is not for dispatch however well it scores elsewhere.
So split the five criteria by what they are. Stability and summer resistance are gates: pass or fail. Hot throw and burn quality are scores: better or worse, compared among survivors. Cost per finished candle is the decider, and it is only meaningful once it includes the candles each combination loses to QC.
The two example combinations
Both use Lavender, whose page states a candle load of 6–10% and rates it 'Strong' (the page's own rating, not a measurement). Both are 200 g candles in a matte 200 ml jar.
Combination A: CSI 464 with Lavender at 8% and an Eco C1 wick. Per candle: 184 × ₹0.5074 = ₹93.36 of wax, 16 × ₹5.221 = ₹83.54 of oil, the jar ₹70.80 and wick ₹5.90, giving ₹93.36 + ₹83.54 + ₹70.80 + ₹5.90 = ₹253.60.
Combination B: Luxury Soy Wax Chunks with Lavender at 7% and an Eco C2 wick. Per candle: 186 × ₹0.5999 = ₹111.58 of wax, 14 × ₹5.221 = ₹73.09 of oil, the jar ₹70.80 and wick ₹9.44, giving ₹111.58 + ₹73.09 + ₹70.80 + ₹9.44 = ₹264.91. Both totals exclude packaging, labels, labour, shipping and GST.
On the load bases: 8% of total is 16 ÷ 184 = 8.70% of wax weight, inside CSI 464's 'up to 10%'. 7% of total is 14 ÷ 186 = 7.53% of wax weight, well inside Chunks' 'maximum 13% of wax weight'. Being inside a stated maximum does not prove stability; that is what the gate is for.
Stage one: the gates
Stability gate. Pour at least six candles of each, cure for the stated 48–72 hours, and observe on a suggested schedule of day 1, 3, 7 and 14 with photographs and a tissue blot. Pass means no oil film or droplets on any candle by the last check.
Summer gate. Take two of each through your own warm-room cycles at a condition you choose to represent your worst storage or courier exposure, in a supervised cabinet or room and never a kitchen oven. CSI publishes no heat-resistance figure for either wax, so this gate is entirely your own evidence. Pass means no oil after the cycles, judged at room temperature.
Run both gates on candles poured in the same session, from the same oil bottle, with fragrance-addition and pour temperatures measured by thermometer and matched. If A is poured on a cool morning and B on a hot afternoon, the gates compare days, not formulas. Keep the candles side by side through the whole observation period, in the same room, so they see the same temperature swings.
Stage two: the scorecard
| Criterion | Type | How it is measured | A: CSI 464, 8%, C1 | B: Chunks, 7%, C2 |
|---|---|---|---|---|
| Stability | gate | day 1, 3, 7, 14 observation and blot | pass | pass |
| Summer resistance | gate | your own warm-room cycles | pass, light film on 1 of 2 | pass |
| Hot throw | score 1–5 | blind rating, closed room, same burn time | 4 | 4 |
| Burn quality | score 1–5 | melt pool, flame, soot, burn to end | 3: slow pool in hour 2 | 4 |
| Materials per candle | cost | wax + oil + jar + wick | ₹253.60 | ₹264.91 |
| Reject rate in pilot | your log | QC fails ÷ candles poured | 10% (example) | 3% (example) |
| Cost per good candle | decider | materials ÷ (1 − reject rate) | ₹281.78 | ₹273.10 |
Look at the summer row for A in the example: one of two candles showed a light film after cycling. Strictly, that is a fail, and A should leave the comparison. It is kept in the table here to show how the cost stage works, and because many makers would be tempted to call it a borderline pass. If your own result looks like this, repeat the summer gate with more candles before you score anything.
Score throw and burn in the same sessions for both combinations. For throw, burn each candle for the same time, move it to a closed room of similar size, and have at least two people rate it on a fixed 1–5 scale without knowing which is which. For burn quality, record melt-pool progress at each hour, flame steadiness, soot on the glass and how the candle finishes at the bottom. Burn to the end at least three candles of each, and never leave them unattended.
If the scores tie, as throw does in the example, do not invent a tiebreaker from the bottle smell. A tie means the customer will not notice the difference, which pushes the decision onto burn quality and cost. Record the raters' notes as well as the numbers; a comment such as 'softer but rounder' can matter more for a scent than a one-point difference. If one combination wins clearly on throw but loses on burn, look at the wick before the formula: a different wick may fix the burn without losing the throw, and that is a third combination worth a short test rather than a reason to accept a flawed one.
Stage three: cost per good candle
The materials line is what most makers compare, and on that line A wins by ₹264.91 − ₹253.60 = ₹11.31 per candle. But candles that fail QC cost the same to make and earn nothing. Divide by the share that pass. With an example reject rate of 10% for A, from frosting, a few late surface films and some uneven burns in the pilot, A costs ₹253.60 ÷ 0.90 = ₹281.78 per good candle. With an example 3% for B, it costs ₹264.91 ÷ 0.97 = ₹273.10.
Across a run of an example 500 good candles, that is 500 × ₹281.78 = ₹140,890.00 for A and 500 × ₹273.10 = ₹136,550.00 for B, a difference of ₹4,340.00 in B's favour, before counting the labour of making the extra A candles that fail. The reject rates are illustrations; yours come from your own trial and pilot QC log, counting every candle you would not ship.
Record the winner as one formula
If neither combination passes both gates, neither goes on the sheet. Go back to the load ladder or a third wax rather than choosing the less bad of two sweating candles. And when the winner goes into production, keep logging rejects: the reject rate you measured in a pilot is an estimate, and the first few production runs will tell you whether the cost per good candle you decided on is the one you are actually achieving.
Where this page fits
CSI already has guides that cover parts of this question. This page answers one sweating decision; these cover the neighbouring questions:
Three things to buy for this fix
| Option | Price | Status on the October 2026 pull |
|---|---|---|
| 15 g | ₹105.02 | In stock |
| 50 g | ₹270.00 | In stock |
| 100 g | ₹540.00 | In stock |
| 500 g | ₹2,620.00 | In stock |
| 1 kg | ₹5,221.00 | In stock |
| Option | Price | Status on the October 2026 pull |
|---|---|---|
| Thin (C1) × 10 | ₹59.00 | Out of stock |
| Thin (C1) × 20 | ₹118.00 | In stock |
| Thin (C1) × 100 | ₹590.00 | In stock |
| Thin (C1) × 500 | ₹2,950.00 | In stock |
| Thin (C1) × 1,000 | ₹5,900.00 | In stock |
| Thick (C2) × 10 | ₹94.40 | In stock |
| Thick (C2) × 20 | ₹188.80 | In stock |
| Thick (C2) × 100 | ₹944.00 | In stock |
| Option | Price | Status on the October 2026 pull |
|---|---|---|
| Digital scale | ₹354.00 | In stock |
CANDLEMAKINGSUPPLIESINDIA supplies raw materials and production equipment, not finished candles. This guide separates general formulation practice from what CSI's own product pages state, converts the pages' wax-weight loads to the total-weight basis used here, says plainly where CSI publishes no figure (wax heat resistance, survival temperatures, oil composition beyond the page), and labels every load step, test temperature, observation day or reject rate as a starting point for your own validation.
Prices are live CSI prices from October 2026; product pages are authoritative. Where a spec is not published — such as the temperature at which a wax starts to release oil — this guide says so rather than filling the gap.
For bulk quotes, GST invoicing, IFRA and MSDS documents, message us on WhatsApp at +91 7397976926.
Frequently asked questions
- Should Every Commercial Candle Formula Have an Approved Maximum Fragrance Load Rather Than Allowing Production Staff to Add Extra Fragrance for “Stronger” Candles?
- How Do I Document an Approved Wax × Fragrance × Load × Wick × Process Combination so Future Production Does Not Recreate a Sweating Failure?
- How Do I Take a Candle From Visible Oil Droplets → Identify Whether It Is Fragrance Migration → Test Fragrance Load → Check Wax Compatibility → Standardise Processing → Heat-Test for Indian Conditions → Rescue Failed Stock If Possible → Select the Correct CSI Wax/Fragrance → Validate → Bulk Purchase?
- I Already Made 500 Candles and Fragrance Oil Has Started Appearing on the Surface — Can I Rescue the Batch or Should It Fail QC?
- I Have 200 Sweating Candles Made at 10% Fragrance — Should I Remelt Them and Dilute the Batch With Additional Wax?
- How Do I Calculate the Amount of Additional Wax Needed to Reduce a 10% Fragrance Batch to a Lower Target Concentration?
- If I Add More Wax to a Failed Scented Batch, How Do I Recalculate the Final Fragrance Percentage Accurately?
- Can I Remelt a Sweating Candle Batch Without Adding Any Additional Fragrance Oil?
- Candle Sweating Troubleshooting — Wax, Fragrance Load, Mixing or Temperature?
- My Candle Sweats with One Fragrance but Not Another at Exactly the Same Percentage — Why Can Wax Hold Different Fragrance Oils Differently?
Customer reviews: The reviews at the top are genuine, published Judge.me reviews — Ashwini (5★, not recorded as verified); Jinal Monil (4★, verified); Manasa GN (5★, verified); Arminder Kaur (5★, verified); Sraddha (5★, verified); Urvashi Patel (4★, verified). Names, ratings, dates and products as recorded by Judge.me.
Product facts (October 2026, CSI live store): Lavender Fragrance Oil: 15 g ₹105.02, 50 g ₹270.00, 100 g ₹540.00, 500 g ₹2,620.00, 1 kg ₹5,221.00 — single-note lavender; top fresh lavender, middle herbal green, base soft musk · stated candle load 6–10% · rated "Strong" on the product page · flashpoint and vanillin not published on the page. Eco Candle Wicks: Thin (C1) × 10 ₹59.00 (out of stock), Thin (C1) × 20 ₹118.00, Thin (C1) × 100 ₹590.00, Thin (C1) × 500 ₹2,950.00, Thin (C1) × 1,000 ₹5,900.00, Thick (C2) × 10 ₹94.40, Thick (C2) × 20 ₹188.80, Thick (C2) × 100 ₹944.00 — natural cotton and paper fibres · ₹5.90 (C1) and ₹9.44 (C2) per wick at every pack size · no dimensions or burn chart published. Candle Making Weighing Scale: Digital scale ₹354.00 — digital, grams or ounces · capacity and resolution not published. Luxury Soy Wax Chunks: 500 g ₹299.00, 1 kg ₹599.00, 5 kg ₹2,995.00, 10 kg ₹5,999.00 — container and jar wax · stated maximum fragrance load 13% of wax weight · product page states prices are inclusive of taxes.
Assumptions: Fragrance load is a percentage of total candle weight (200 g = 184 g wax + 16 g oil at 8%); CSI wax pages phrase their ceilings as a share of wax weight. CSI wax pages state fragrance loads as a share of wax weight; converted here to total weight with W ÷ (100 + W) (10% of wax = 9.09% of the candle; 13% = 11.50%). A stated maximum is the wax maker's ceiling for typical oils, not a promise for every oil. CSI publishes no wax heat-resistance or survival temperature; every test temperature, observation day, load step, reject rate and labour or energy cost is a suggested starting point or the reader's own figure. Blends with microcrystalline wax, Vybar, paraffin or Soy Pillar Wax are the maker's own to test. Wax prices re-checked 7 October 2026, oil prices 1 October 2026; product pages are authoritative.