Fragrance Content vs Fragrance Load Calculation Methods

In the following video, we explain the different methods that you can use when measuring how much wax and fragrance oil to use in your candle making process.


The two different methods are called fragrance LOAD and fragrance CONTENT. Each method uses a percentage calculation, but in a different way, so each method will give a different result. Want to know which one you should use?

Watch the video

Fragrance content

The fragrance CONTENT method is used to calculate how much fragrance oil to add based on the combined weight of the wax and the fragrance oil in the candle.

The fragrance CONTENT method gives true percentages based on the finished candle.

Candle Shack’s CLP tool uses the fragrance CONTENT method.

Calculation example:

For making a 220g candle with 10% Fragrance CONTENT, then:

Fragrance to use:
10/100 x 220g = 22g

Wax to use:

90/100 x 220g = 198g

Fragrance load

The fragrance LOAD method is used to calculate how much fragrance oil to add based on the weight of wax used.

The same method should be used for all calculations during production runs.

Calculation example:

For making a candle with 200g of wax at 10% fragrance LOAD, you need:

Fragrance to use:
10/100 x 200g wax = 20g

Manufacturer’s recommendations

Wax manufacturers often give a recommended or maximum fragrance load for particular wax blends. These values should be regarded only as a general guide, as manufacturers cannot realistically test their products with every available fragrance oil. A wax with a recommended load of 10% might easily accommodate a load of 12%, 14%, or even 20%. The only meaningful way to find out how much fragrance oil your candle will hold is to test it yourself.

The fragrance LOAD method is used to calculate how much fragrance oil to add based on the weight of wax used.

The same method should be used for all calculations during production runs.

Summary

Each method will give a different result. Fragrance CONTENT is based on the whole candle. Fragrance CONTENT gives true percentages; thus, it is a recommended way to calculate the amounts.

Candle Shack’s CLP tool uses the fragrance CONTENT method.

Fragrance LOAD method is based on the weight of wax used.

Fragrance LOAD offers a convenient method for manufacturers to describe how much fragrance a particular wax can hold. Fragrance load values should be regarded only as a general guide, as manufacturers cannot realistically test their products with every available fragrance oil.

It really doesn't matter which method you choose, but once you have chosen a method, stick to it.