Homemade Tallow Soap
Learn how to make luxurious, nourishing tallow soap at home with this step-by-step guide. Discover the benefits of tallow, tips for safe soap-making, and why homemade soap beats store-bought every time!
Prep Time10 minutes mins
Active Time30 minutes mins
Cure Time28 days d
Total Time28 days d 40 minutes mins
Yield: 7 bars
Author: Allyson Letal - Boreal Bloom Homestead
Cost: $20
- 300 g grass fed tallow
- 100 g coconut oil unrefined
- 100 g sweet almond oil
- 190 g cold water
- 69 g lye (sodium hydroxide)
Gather Safety Supplies And Tools
Dig out the safety glasses and some rubber gloves. Make sure to wear a long sleeved shirt and pants. Find a heat proof bowl with at least a 2 quart capacity to mix your oils and a heat proof container for the lye solution with a capacity of at least 1 pint (500 ml). Collect a silicone spatula, a scale, a double boiler, soap molds, an immersion blender, digital thermometer or infrared thermometer.
Make The Lye Solution
Put on your safety glasses and rubber gloves. Weigh 190g cold water in a heat proof container with at least 500 ml capacity. I use a 2 cup glass pyrex jar. Weigh 69g lye crystals into a separate container. Carefully pour the lye into the water and stir well. Steam, fumes, and heat are byproducts of this chemical reaction and are very normal, but be cautious to not burn yourself.
Set the lye somewhere safe to cool, in the kitchen sink is a great place - if it spills, it can be quickly and easily diluted.
Make The Soap
Use your infrared thermometer to check the temperature of both the lye solution and oils. Once the lye solution is between 100 and 120f and the oils are within 10 degrees Fahrenheit, you can start soaping.
Pour the lye solution into the heated oils and carefully place your immersion blender into the mixture, ensuring the blending head is covered at all times. Alternate between pulsing the blender on and off and stirring the mixture with a spatula. This recipe will take a longer time to come to trace because tallow is a slow moving fat.
After pulsing and stirring for a while, the mixture will come to trace, which simply means it thickens. We're aiming for the consistency of pudding.
Transfer Soap To Molds
Place the soap molds onto a tray or baking sheet. Pour the soap batter into the molds. If desired, texture the top of the soap bars. You can use a spoon or a toothpick to add swirls.
Move the tray somewhere that the soap can set for 48 hours.
Cure The Soap
After 48 hours, remove the soap from the molds. If the soap does not easily pull away from the edges of the molds, it may need longer to set, but after 48 hours, it should be firm enough to remove. Use a peeler to remove the sharp edges from the sides of the soap bars.Set the soap bars on end in a place with good airflow and allow to cure for at least 4 weeks. The curing time is very important when it comes to cold process soaps, this allows the saponification process to complete, excess moisture to evaporate and improves the longevity and lather of your soaps.
Batch
This recipe perfectly fills a 6 cavity soap mold plus one extra. If you only have one mold, you can always pour the rest into another mold or something from around the house, like an ice cube tray, silicone baking mold, Pringles can, anything with a smooth, shiny surface that the soap will pop out of. I find when you're just getting into soap making, this is a great sized batch - it allows you to make a reasonable amount of soap that you'll work through in a reasonable amount of time!
Smaller batches also allow you to experiment more, as you'll have less soap to use up before you can try something new!
Storage
I keep my cured handmade tallow soap in an old shoe box in the basement. This location is perfect because it's low humidity, temperature controlled, and away from direct sunlight.
The shelf life of your soap is long, and I personally find that the longer the cure, the better the soap. Look to the expiration dates on your oils to help you determine your shelf life. The one with the shortest expiration date determines your shelf life.