1. Calculate the required amount of wax and additives for making the candle.
a) If you are using the mold for the first time, you need to measure how much wax the candle will require. To do this, place the mold on the scale, turn it on, and fill the mold with water. Multiply the resulting weight by 0.9 (average wax density). Add a few more grams of wax (3–10%), since some wax will remain on the walls of the pouring pot.
b) To calculate the fragrance, use any up-to-date calculator online or compute it yourself. Multiply the wax mass by the fragrance load in % and divide by 100; this gives you the mass of the fragrance.
c) Next, subtract the fragrance mass from the wax mass; this gives you the wax mass accounting for the fragrance.
Example calculation:
Mass of water in the mold: 105 g
Fragrance load: 5%
Wax mass = 105 × 0.9 = 94.5 g
Fragrance mass = 94.5 × 5 / 100 = 4.7 g
Wax mass accounting for fragrance = 94.5 − 4.7 = 89.8 g
If you are making more than one candle at a time, multiply both the fragrance mass and the wax mass accounting for fragrance by the number of candles.
2. Place the pouring pot on the scale and tare it to zero, then add the required amount of wax.