Lance Carson
When making glycerin soap, it's important to get the right ratio of fragrance oil to fats and oils. Too much fragrance oil can cause the soap to accelerate or 'seize', so it's important to be careful. The amount of fragrance oil you use will depend on the type of soap you're making. For cold process soap, a ratio of 30g of fragrance oil to 1kg of fats/oils is recommended. For hot process soap, 15-20g of fragrance oil per 1kg of fats/oils is suggested. And for melt-and-pour soaps, a ratio of 10g of fragrance oil to 1kg of melt-and-pour soap base is recommended.
| Characteristics | Values |
|---|---|
| Cold process soap | 30g of fragrance oil for every kilogram of fats/oils |
| Hot process soap | 15-20g of fragrance oil for every kilogram of fats/oils |
| Melt and pour soaps | 10g of fragrance oil for every kilogram of melt and pour soap base |
| Lotions, creams, balms, shampoos, bath gels | 1-3% by weight |
| Minimum fragrance oil | 3% of weight of oil |
| Maximum fragrance oil | 5% |
| Average fragrance oil | 6% |
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What You'll Learn
Cold process soap: 30g of fragrance oil per kg of fats/oils
When making cold process soap, it is recommended to use 30g of fragrance oil for every kilogram of fats/oils in your recipe. This will ensure that your soap has a good, strong fragrance.
The amount of fragrance oil you use will depend on your personal preference. Some people prefer a stronger scent and use 1 oz per pound of oils (PPO), which works out to approximately 6%. Others start at 3% of the weight of oil and increase from there.
It is important to note that some fragrances, particularly floral scents, can cause cold process soaps to accelerate or 'seize'. To avoid this, make sure you are using enough water. For every kilogram of fats/oils in your recipe, use at least 330g of water.
If you are making hot process soap, the recommended amount of fragrance oil is 15-20g per kilogram of fats/oils. For melt and pour soaps, 10g of fragrance oil is recommended for every kilogram of melt and pour soap base.
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Hot process soap: 15-20g of fragrance oil per kg of fats/oils
When making hot process soap, you should use 15-20g of fragrance oil per kg of fats/oils in your recipe. This will give your soap a good, strong fragrance. If you are making cold process soap, you should use 30g of fragrance oil per kg of fats/oils. For melt and pour soaps, use 10g of fragrance oil per kg of melt and pour soap base.
It is important to use the right amount of fragrance oil in your soap. If you use too much, it can cause the soap to accelerate or 'seize'. This is more common with floral fragrances. If you are having trouble with a fragrance oil, make sure you are using enough water. For every kilogram of fats/oils in your recipe, you should use at least 330g of water.
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Melt and pour soaps: 10g of fragrance oil per kg of soap base
When making melt and pour soaps, it is recommended that you use 10g of fragrance oil for every kilogram of melt and pour soap base. This will give your soap a good, strong fragrance.
If you are making your soap using the cold process method, you will need to use more fragrance oil: 30g of fragrance oil for every kilogram of fats/oils in your recipe. The amount of fragrance oil you use will depend on how strong a scent you want your soap to have. Some people use 1 oz per pound of oils (PPO), which works out to approximately 6%.
If you are making a small batch of soap, you can start with 3% of the weight of oil as fragrance oil. You can also check with the supplier for maximum usage rates, which are usually at least 5%.
You can buy melt and pour soap kits online, which include a soap base, moulds, and fragrances.
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Fragrance oil percentages: 3-6% of the weight of oil
The amount of fragrance oil you should use depends on the type of soap you are making. For cold process soap, you should use 30g of fragrance oil for every kilogram of fats/oils in your recipe. For hot process soap, use 15-20g of fragrance oil for every kilogram of fats/oils. For melt and pour soaps, use 10g of fragrance oil for every kilogram of melt and pour soap base.
If you are unsure how much fragrance oil to use, it is recommended to start with 3% of the weight of oil. You can then increase this to 6% if you prefer a stronger scent.
It is important to note that some fragrances, particularly floral scents, can cause cold process soaps to accelerate or 'seize'. In this case, it is recommended to use more water – at least 330g of water for every kilogram of fats/oils in your recipe.
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Water content: 330g of water per kg of fats/oils
The amount of fragrance oil you should use in glycerin soap depends on the type of soap you're making. For cold process soap, use 30g of fragrance oil for every kilogram of fats/oils in your recipe. For hot process soap, use 15-20g of fragrance oil per kilogram of fats/oils. For melt and pour soaps, use 10g of fragrance oil for every kilogram of melt and pour soap base.
If you're making a small batch of soap, you can start with 3% of the weight of oil as fragrance oil. Some people use 1 oz per pound of oils (PPO), which works out to approximately 6%.
When making cold process soap, some fragrances (mostly floral) can cause the soap to accelerate or 'seize'. To avoid this, use at least 330g of water for every kilogram of fats/oils in your recipe.
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Frequently asked questions
It depends on the type of soap you are making. For cold process soap, use 30g of fragrance oil per kilogram of fats/oils. For hot process soap, use 15-20g of fragrance oil per kilogram of fats/oils. For melt and pour soaps, use 10g of fragrance oil per kilogram of melt and pour soap base.
If you are making a small batch of soap, start with 3% of the weight of oil.
If you want a strongly scented soap, use 1 oz of fragrance oil per pound of oils (PPO), which works out to approximately 6%.
If you want a lightly scented soap, use less than 1 oz of fragrance oil per pound of oils (PPO). Some people recommend using 0.48 oz/PPO for most scents.
If you're making a lotion, cream, balm, shampoo, or bath gel, use between 1-3% fragrance oil by weight.
