How to Scale a Candle Recipe Up to a Batch of 24

Scaling a candle recipe is plain multiplication, as long as the recipe is written in weights for one candle. Candlewic calls 1 oz of fragrance oil per pound of wax a common starting point, so a 2 lb test batch takes about 2 oz of oil and a 10 lb batch about 10 oz. The traps are in the details, such as what stays in the pitcher, whether your pot is big enough, and whether a big batch cools the way a small one did.

What are the steps?

1. Prove the small batch first. Candlewic says to make small test batches, cure them at least 24 hours, burn them in a controlled setting, and scale up only when you like the results. Scaling a flawed recipe just makes more flawed candles.
2. Write the recipe per candle, in weights. Wax in ounces or grams, oil in ounces or grams, and the wick. Do not write "one scoop" or "a cup".
3. Fix how you count the load. Decide if fragrance load is a percent of the wax or of the total, and keep to it. See our guide on that split.
4. Multiply by the number of candles. Wax x 24, oil x 24.
5. Add an allowance for waste. Some wax and oil stays on the pitcher and the thermometer. Weigh your pitcher before and after one pour to see what yours really keeps. I do not have a source for a standard number, so the example below uses a made-up 3 percent.
6. Split into pours your equipment can handle. A pitcher that is too full is hard to pour and unsafe when hot.
7. Pour, label and track. Write down the batch, the date and what you used, then burn test a few from this batch.

Worked example: 24 candles

Say one candle takes 6.5 oz (184 g) of wax, and your load is 8 percent of the wax. All numbers are examples.

• Oil per candle: 6.5 x 0.08 = 0.52 oz (15 g)
• Wax for 24: 6.5 x 24 = 156 oz (4.42 kg), which is 156 / 16 = 9.75 lb
• Oil for 24: 0.52 x 24 = 12.48 oz (354 g)
• Add a 3 percent allowance: wax 156 x 1.03 = 160.68 oz (4.56 kg), oil 12.48 x 1.03 = 12.85 oz (364 g)
• Check the ratio: 12.85 / 160.68 = 0.08, still 8 percent
• Two pours of 12: each takes 80.34 oz of wax (5.02 lb, 2.28 kg) and 6.43 oz of oil (182 g)

If you go the other way and the load is a percent of the total, as NorthWood handles it when it fills a jar, each candle's wax would be 6.5 / 1.08 = 6.02 oz and you would redo the sums. Pick one method and stay with it.

What changes when the batch gets bigger?

Candlewic does not cover this, and I would not guess past its words. These are my own cautions from making candles, so treat them as things to watch, not rules:

• A larger pot of wax holds heat longer, so its temperature may differ from a small pot when you reach your pour temperature. Use a thermometer, not a clock.
• Jars poured later in the batch may sit with wax that is cooler than the first ones. Check your wax's pour temperature range.
• Stirring for the same time matters more than stirring harder. Mix oil and wax well in the bigger pot.
• Retest. A few candles from the first full batch should go through the same burn test as the small batch.

Common mistakes

• Scaling a recipe that was never burn tested.
• Writing the recipe in volumes, such as cups or tablespoons.
• Multiplying the wax but forgetting the oil, or the other way round.
• Changing the load basis (wax or total) between the test and the batch.
• Melting more wax than the pot can hold safely.
• Not weighing the leftover wax, so the cost per candle is a guess.

Questions

How much extra wax should I make?

Enough for the pitcher and a second pour. A number from a forum is not as good as weighing your own pitcher before and after a pour. Then use that percent for the next batch.

Can I use the same method for 100 candles?

Yes. The math is the same: multiply by 100. Splitting it into pours matters more, and so does your ordering, since a bigger run needs more wax on hand. Our cost guide shows how to turn the totals into cost per candle.

Do I scale the wick too?

No. The wick belongs to the candle, so each jar still gets one wick of the size you tested, whatever the batch size.