Anisha Riggs
When making hot process soap, it's important to consider how much fragrance oil to add. The amount of fragrance oil used will depend on the desired strength of the scent, with stronger scents requiring more oil. For hot process soap, it is recommended to use 15-20g of fragrance oil for every kilogram of fats/oils in the recipe. This is less than the amount recommended for cold process soap, which is typically around 0.7 ounces (20g) of fragrance oil per pound of soap. It's also worth noting that some fragrances, particularly floral scents, can cause cold process soaps to accelerate or 'seize', so extra care must be taken when adding these fragrances to soap.
| Characteristics | Values |
|---|---|
| Amount of fragrance oil per kg of fats/oils | 15-20g |
| Amount of water per kg of fats/oils | 330g |
| Usage rates | Play a big role in scent retention |
| Strong scent | 0.7 ounces of fragrance or essential oil per pound of cold process soap |
| Melt and pour | 0.3 ounces per pound |
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What You'll Learn
How much fragrance oil to use for hot process soap
When making hot process soap, the amount of fragrance oil you should use depends on the strength of scent you want. For a strong scent, you can add 0.7 ounces of fragrance or essential oil per pound of cold process soap. For melt and pour, you can add 0.3 ounces per pound. This number will vary based on the oil you choose. For instance, Cherry Almond Fragrance Oil is really strong, so the maximum amount recommended is 0.2 ounces per pound of cold process soap.
If you are making hot process soap, you can use the 'Cold Process' option on the Bramble Berry Fragrance Calculator to work out how much fragrance oil to use. This calculator is based on the amount of oil, liquid and lye in your soap.
As a general rule, for hot process soap, you should use 15-20g of fragrance oil for every kilogram of fats/oils in your recipe. This will give you a good, strong fragrance.
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How to prevent scent fading
To prevent scent fading in hot process soap, it's important to use the right amount of fragrance oil. For hot process soap, it is recommended to use 15-20g of fragrance oil for every kilogram of fats/oils in your recipe. This will ensure that your soap has a strong scent that lasts.
The amount of fragrance oil you use will depend on the type of oil you choose. For example, Cherry Almond Fragrance Oil is very strong, so you only need to use a maximum of 0.2 ounces per pound of cold process soap. On the other hand, English Rose Fragrance Oil is also very strong, but you don't need to use a full 0.7 ounces per pound of soap to get a strong scent.
It's also important to consider the usage rate when trying to prevent scent fading. The fragrance calculator can help you determine the exact amount of fragrance oil you need based on your specific recipe and the type of oil you are using. The fragrance calculator takes into account testing and safety guidelines created by the International Fragrance Association (IFRA) and the Research Institute for Fragrance Materials (RIFM).
Additionally, when making cold process soap, it's important to use enough water. For every kilogram of fats/oils in your recipe, ensure you are using at least 330g of water. This will help prevent scent fading and ensure that your soap has a strong, long-lasting fragrance.
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How to use a fragrance calculator
For hot process soap, it is recommended that you use 15-20g of fragrance oil for every kilogram of fats/oils in your recipe.
To help you calculate the exact amount of fragrance oil you need, you can use a fragrance calculator.
To use a fragrance calculator, you first need to choose the type of product you are making. For example, the Bramble Berry Fragrance Calculator has options for lotion, liquid soap, cold process soap, melt and pour soap, salts and scrubs, rebatch soap, candles, and shampoo and conditioner. Once you have selected the type of product, you can then select the fragrance or essential oil you want to use. You can then input how much of the product you are making, and the calculator will tell you how much fragrance or essential oil you need to add to achieve a light, medium, or strong scent.
Some fragrance calculators, like the Bramble Berry one, also allow you to create custom blends and save your recipes for future use.
It is important to note that some fragrance and essential oils are lighter or stronger than others, so you may need to adjust the amount you use to your personal preference. For example, English Rose Fragrance Oil is very strong, so you may not need to use the full recommended amount to achieve a strong scent.
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How much water to use
When making hot process soap, the amount of water you use is important. If you use too much water, your soaps may warp as the water evaporates. If you use too little, your soap will be difficult to work with.
The amount of water you use will depend on the amount of oils in your recipe. One source recommends using 35% water as a percentage of your oils. For example, if you have 100 g of oils, you would use 35 g of water. Another source recommends using 38% water as a percentage of your oils. This is the standard amount recommended by SoapCalc.
You can also use a lye solution with a 25% lye concentration – a ratio of 1:3 by weight, lye to water. For example, 100 g lye would be mixed with 300 g distilled water. If you want to add yogurt to your soap, you will need to discount the total amount of water in your lye solution. For example, if your recipe calls for 10 oz of water and you want to add 1 oz of yogurt, you will only use 9 oz of water for your lye solution.
It's important to note that the more water you use, the more fluid your soap will be, but you run the risk of shrinkage after the cure.
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How much fragrance oil to use for cold process soap
When making cold process soap, the amount of fragrance oil you use will depend on the strength of scent you want. For a strong scent, you can add 0.7 ounces of fragrance or essential oil per pound of soap. However, some fragrance oils are very strong, so you may not need to use the full amount to achieve a strong scent. For example, if you are using Cherry Almond Fragrance Oil, the maximum amount recommended is 0.2 ounces per pound of soap.
The amount of fragrance oil you use will also depend on the recipe you are following. If your recipe includes fats or oils, you will need to use more fragrance oil. A general rule of thumb is to use 30g of fragrance oil for every kilogram of fats or oils in your recipe. You will also need to make sure you are using enough water. For every kilogram of fats or oils, you should use at least 330g of water.
It is important to note that some fragrances, particularly floral scents, can cause cold process soaps to accelerate or 'seize'. If you are having trouble with a fragrance oil, you may need to adjust the amount of water you are using or try a different fragrance.
To find out exactly how much fragrance oil you need, you can use a fragrance calculator. These tools take into account the weight of your soap, as well as the type of oil you are using, to give you a precise recommendation.
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Frequently asked questions
It is recommended that you use 15-20g of fragrance oil for every kilogram of fats/oils in your recipe.
The maximum amount of fragrance oil recommended is 0.7 ounces per pound of soap.
For every kilogram of fats/oils in your recipe, ensure you are using at least 330g of water.
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