The temperature of the wax should at least be 60°C up to 65°C before adding the fragrance oil.

Before adding the fragrance oil to your candle, it is important that all the wax ist melted. To do this, stir again the wax poured in the glass. Check with your thermometer how many degrees celsius the wax is. At least 60°C to 65°C you can add the fragrance oil. Various wax producers provide rough guidelines for melting, mixing and pouring temperatures.

You can find the formula for the proportion candle fragrance oil here.