I Received 10 Fragrance Samples From a Supplier — What Candle Tests Should I Run Before Deciding Which Ones Are Worth Buying in 1 Kg Quantities?

Treat ten samples as a funnel, not a line-up

When a box of ten fragrance samples arrives, the temptation is to pour ten candles, light them all on one evening and pick favourites. That approach feels efficient and produces unreliable answers. Candles lit together share one room, so their scents mix. Your nose tires after the third or fourth sniff. And a favourite on the first night may still mushroom the wick, darken white wax or fade by week two.

A better structure is a gated funnel. Every sample enters Gate 1. Each gate is a pass or fail check, and only oils that pass move on to the next, slower and more expensive test. By the time you reach the question of a 1 kg order, you are deciding on perhaps three or four oils with a full record behind each one, rather than ten oils with a vague impression.

The order matters because the tests get costlier as you go. Smelling a strip takes seconds. Curing and burning a candle takes days and uses wax, wicks and jars. So the cheap gates come first and do most of the filtering.

The five gates and what each one removes

Keep one rule firm throughout: one variable at a time. In Gates 2 to 4, the wax, jar, wick, load, pour temperature and cure time must be identical for every sample. If you change the wick for one oil because it looked weak, you have mixed a wick test into a fragrance test and lost the comparison.

Set up round one so ten oils face the same conditions

Choose one container wax and hold it for the whole screen. In the worked example below, that is Luxury Soy Wax CSI 464, which the product page states takes fragrance up to 10%. Pick one jar you actually sell, one wick that already burns correctly in that jar with an oil you trust, and one load that sits inside every sample's stated range. For most CSI soy oils the product pages state 6–10%, so 8% of total candle weight is a sensible common load.

On the convention used in this series, an 8% load in a 200 g candle is 184 g of wax plus 16 g of oil. Two candles per oil means 32 g per sample, which a 50 g sample covers with room for a third candle as a spare. Add each oil below its published flashpoint and at your wax maker's stated temperature. Where a flashpoint is not published on the page, ask for the MSDS before you heat it.

Burn one oil per room, or burn in the same room on different days with the windows opened in between. Never leave a burning test candle unattended, keep it away from fans and open windows while scoring, and stop any test that smokes or flares.

Worked example: ten CSI samples, costed

Suppose your ten samples are ten CSI oils across the main families, bought in 50 g sizes. The table sets the sample price against what the same ten oils would cost if you skipped sampling and bought 1 kg of each.

The sample route costs ₹2,533.20 in oil. The skip-sampling route commits ₹44,420.20. If only three oils survive the gates, most of that larger figure would be sitting in bottles you have already decided against.

Wax for the screen is modest too. Twenty candles at 184 g each need 3,680 g of wax, so a 5 kg pack of CSI 464 at ₹2,537.00 covers it with wax left for re-tests. Twenty Thin (C1) Eco wicks at ₹5.90 each come to 20 × ₹5.90 = ₹118.00.

From survivors to a 1 kg decision

Once the gates have run, lay the results side by side. A useful record for each oil is a single row: bottle notes, cold throw score, hot throw score, burn notes, colour note and cost per candle. Survivors are the oils with no failed gate, not simply the oils with the highest single score.

When two survivors tie, break the tie with the gate that matters most to your customer. A maker selling white jars should weight Gate 4 colour more heavily. A maker selling to cafés or large living rooms should weight Gate 3 hot throw. Write that priority down before you look at the scores, so the tie-break is a business rule rather than a mood on the day.

Before you buy a kilogram of any survivor, run one more short round: a load bracket. Pour that oil at two or three loads, for example 6%, 8% and 10%, keeping everything else the same. If 6% already meets your target, you have just found a cheaper recipe before placing the order. For Lavender, that difference is ₹83.54 of oil per candle at 8% against 12 g × ₹5.221 = ₹62.65 at 6%.

Then consider pack size honestly. For some CSI oils the 500 g pack costs the same per gram as the 1 kg, so a 500 g pilot costs you nothing extra per candle. Woody Oud is one: ₹2,265.60 ÷ 500 and ₹4,531.20 ÷ 1000 both come to ₹4.5312 per gram. Check your chosen oil's two pack prices before assuming the bigger pack is the better buy.

Where this page fits

CSI already has guides that cover parts of this question. This page answers the specific oil-in-wax question above; these go deeper on the rest:

Three things to buy for this job

Frequently asked questions