Why don candle manufactures add more fragrance?
There is a maximum amount of fragrance that can be added to a candle before it no longer burns cleanly or properly. Each wax blend is different. Having worked with a great number of them, we have found that Palm Wax (likely because it is steam distilled just like other essential oils) can hold and throw higher concentrations of 100% pure essential oil fragrance blends. We pour as much as 12% fragrance in some of our candles. For one private label customer, we even managed to go up to 21%! It all really comes down to production costs. Fragrance is the most costly raw ingredient.