My New Fragrance Oil Batch Smells Slightly Different From the Previous Kilogram — What Should I Check Before Making 500 Candles With It?
शेयर करना
What is the first thing to check? The label. Confirm it is the same fragrance name and variant you approved, because similar names are an easy source of confusion when you stock many oils.
How much oil does a proper comparison use? Five 200 g candles per oil at 8% is 80 g of each. That is one per cent of the 8 kg the full order needs.
Can CSI send documents for the new batch? IFRA and MSDS documents are available on WhatsApp request. Ask CSI about batch details for your specific delivery at the same time.
What is at stake in 500 candles
Start with the quantities, because they decide how careful you need to be. Five hundred candles of 200 g each is 100 kg of scented wax. Using the CSI convention of fragrance load as a percentage of total candle weight, 8% of 100 kg is 8 kg of oil and the remaining 92 kg is wax. With a 5% planning wastage allowance you would buy a little more of each, but the core commitment is 8 kg of this single fragrance.
At Sandalwood's 1 kg price of ₹5,026.80, eight bottles cost 8 × ₹5,026.80 = ₹40,214.40, before wax, wicks, jars, labour and packaging are counted. Once that oil is in wax and poured, it cannot be taken back out. Every test you run before pouring is cheap by comparison.
The second stake is harder to price. If these candles go to repeat customers, the ones who bought the previous batch will notice a change before you do. A candle that smells different on reorder is how a bestseller quietly stops being one.
Three checks you can do in ten minutes
1. The label and the order
Put the old bottle and the new bottle side by side and read both labels in full. Is it the same fragrance name? Is it the same variant, or is one a similarly named alternative? When a supplier offers 93 fragrance oils, near-identical names exist, and a mix-up in your own ordering or storage is far more likely than a formula change. Check your order record too.
2. Appearance
Pour a small amount of each oil into two identical clean beakers and look at them against a white card in daylight. Note colour, clarity and whether one looks noticeably thicker when swirled. A difference here is a reason to look more closely, not a verdict. Some natural materials in fragrance oils vary slightly in colour between lots while performing the same in the candle.
3. Smelling strips
Dip a paper smelling strip into each oil, label them, and smell them immediately, then again after some time as the lighter notes evaporate. Compare top, heart and base impressions. Smell only; never taste fragrance oil, and keep strips away from your face between sniffs. Take breaks, because your nose tires quickly and the second strip always seems weaker.
The comparison candle test
Oils are not sold to be smelled from a bottle; they are sold to perform in wax. The comparison candle test tells you whether the difference you noticed survives dilution, curing and burning. Make one small batch with the old oil and one with the new, holding everything else constant.
Record scores on a sheet like the one below. Use the same scale for every attribute and write short notes in your own words about what is different, because “sharper” or “less sweet” is more useful later than a number alone.
| Check | Old oil | New oil | Notes / verdict |
|---|---|---|---|
| Label and variant match | ✓ | ✓ / ✗ | Order record checked |
| Colour and clarity in beaker | Reference | Same / lighter / darker | Same background, daylight |
| Strip: first impression | 1–5 | 1–5 | Blind if possible |
| Strip: after drying | 1–5 | 1–5 | Base notes |
| Cold throw, cured candle | 1–5 | 1–5 | Random order |
| Hot throw, burn test | 1–5 | 1–5 | Same room size and interval |
| Candle colour after cure | Reference | Same / different | Watch for discolouration |
Deciding what the results mean
If the cured and burning candles match, proceed with the order and file the comparison sheet with the batch record. If the strip test showed a difference that the candles do not, that is common: the wax, the cure and the burn soften small variations in individual notes. The candle is the product your customer smells.
If the candles differ, decide how much. A slight change in character with equal strength may be acceptable for general stock but not for a customer who ordered by name. A clear drop in strength is more serious. You could test a small increase in load, but only within the stated limits, such as up to 10% in soy for Sandalwood or Jasmine and 6–10% for Lavender, and only with another comparison batch. Raising load without testing can create sooting or sweating problems that are worse than the original difference.
Use the cure time productively
A comparison test does not have to delay the order by the full cure period if you plan around it. While the ten comparison candles cure, the rest of the order can be prepared: jars inspected and cleaned, wicks fixed and centred, labels printed, wax weighed into batch lots, packaging assembled. None of that commits the new oil. When the verdict arrives, you move straight to scenting and pouring.
If the order is urgent and the comparison is still curing, the honest choice is to tell the customer the date depends on a quality check rather than to pour on hope. A short delay is easier to explain than 500 candles that smell different from the sample they approved.
Keep the evidence
Keep one candle from each side of the comparison, labelled with the date and your internal reference for each oil, along with the completed record sheet. If a customer later says the reorder smells different, you can put the two candles side by side and answer from evidence.
If you need to hold the batch
Keep producing other fragrances while you investigate. Label the new oil clearly as on hold and store it away from approved stock so no one uses it by accident. Keep the old reference bottle sealed and cool.
Then message CSI on WhatsApp (+91 7397976926) with the fragrance name, pack size, order details and a clear description of what you found, including your comparison scores. Ask what batch information they can share, and request the IFRA and MSDS documents for your records if you do not already have them. Do not assume a batch number, production date or reason for the difference unless CSI confirms it.
Where this page fits
CSI already has guides that cover parts of this question. This page takes the production-floor angle; these go deeper on the rest:
Three things to buy for this job
| Option | Price | Status on the September 2026 pull |
|---|---|---|
| 15 g | ₹93.22 | In stock |
| 50 g | ₹271.40 | In stock |
| 100 g | ₹502.68 | In stock |
| 500 g | ₹2,513.40 | In stock |
| 1 kg | ₹5,026.80 | In stock |
| Option | Price | Status on the September 2026 pull |
|---|---|---|
| 100 ml | ₹300.00 | In stock |
| 250 ml | ₹600.00 | In stock |
| Option | Price | Status on the September 2026 pull |
|---|---|---|
| Digital scale | ₹354.00 | In stock |
CANDLEMAKINGSUPPLIESINDIA supplies raw materials and production equipment, not finished candles. This guide separates what is general production practice from what CSI's own product pages state, and labels every suggested tolerance or timing as a starting point for your own validation.
Prices are live CSI prices from September 2026; product pages are authoritative. Where a spec is not published — such as the scale's capacity or the thermometer's range — this guide says so rather than filling the gap.
For bulk quotes, batch details on a specific delivery, GST invoicing, IFRA and MSDS, message us on WhatsApp at +91 7397976926.
Frequently asked questions
- My Bulk Fragrance Oil Looks Darker Than the Small Sample I Originally Tested — Should I Make a Comparison Candle Before Approving Production?
- I Tested a 100 g Fragrance Sample Successfully and Then Purchased 5 Kg — Should I Revalidate the Bulk Material Before Making Customer Inventory?
- My Bulk Wax Delivery Comes in Multiple Cartons — Should I Assume Every Carton Behaves Identically or Sample Different Cartons Before Production?
- I Received 100 Kg of Wax Across Several Manufacturing Lots — Should Different Lot Numbers Be Kept Separate During Candle Production?
- I Have Two Different Wax Batch Numbers in Inventory — Can I Combine Them in One Production Batch or Should I Keep Them Separate for Traceability?
- I Have Half a Drum of an Older Fragrance Batch and a New Drum Has Arrived — Should I Mix Them Together or Transition Between Batches Separately?
- My Fragrance Supplier Changed the Colour of an Oil but Says the Formula Is Unchanged — What Production Tests Should I Run Before Accepting It?
- My Candle Hot Throw Changes Slightly Between Raw-Material Batches — How Do I Determine Whether the Variation Comes From Wax, Fragrance or Wick?
- My Fragrance Supplier Sent a New Batch of My Bestselling Scent — What Should I Compare Against the Previous Batch Before Making Hundreds of Candles?
- I'm Manufacturing 1,000 Candles a Month — How Should I Test a New Fragrance Before Using It Across a Full Production Batch?
Customer reviews: The reviews at the top are genuine, published Judge.me reviews — Mohabatti Ki Dukaan (5★, verified); Deepika k. (5★, verified); Subhankar Roy (4★, verified); Jaya Sawlani (5★, verified); Jinal Patel (5★, verified). Names, ratings, dates and products as recorded by Judge.me.
Product facts (September 2026, CSI live store): Electric Wax Melter (Imported) 10 kg capacity ₹21,240.00, 20 kg capacity ₹25,960.00; its product page states 9.5 litres per melt, a 60–100°C display with ±10°C deviation, and about 30 minutes to melt 10 kg of soy at 100°C. Mini melter (1 litre) ₹2,360.00. Steel Pouring Pitcher 600 ml ₹708.00 (150 ml out of stock). Weighing scale ₹354.00 and pen thermometer ₹354.00, capacity/range not published. Luxury Soy Wax CSI 464 (flakes) ₹507.40/kg at every pack; Eco Candle Wicks ₹5.90 (C1) / ₹9.44 (C2) each. Published oil flashpoints include Roasted Coconut 93°C and Gardenia 98°C.
Assumptions: Fragrance load is a percentage of total candle weight (200 g = 184 g wax + 16 g oil at 8%); planning wastage 5%. Melted soy wax taken as roughly 0.9 g per ml for rough volume conversions. Tolerances, stir times, sampling plans, hold times and capacity rates on this page are suggested starting points to validate in your own production, not measured CSI data. Worked examples are illustrations. Prices and availability change — product pages are authoritative.