Goat milk powder
Milk soap from a powder instead of liquid milk.
Opens the calculator’s starter recipe, 1000 g of oils, with this additive at the dose it fills in, ready to change.
What it is
Goat milk powder is whole goat milk dried to a powder; one study found it about a quarter protein. Made up at Meyenberg’s ratio, 28 g of powder to about three quarters of a cup of water, it gives regular-strength milk.
Int. J. Food Sci. Technol. (2011) primary source, Meyenberg primary source
How much
- 2 tbsp per cup of the water filled in Handcrafted Soap (2002) primary source
- 5.33 tbsp per cup of the water (from the maker’s mixing ratio) Fisher, The Complete Photo Guide to Soap Making primary source
- 3.97–4.09 % of the oils (from a published recipe) Faiola, Pure Soapmaking primary source
The calculator fills in 2 tbsp per cup of the water: 16.7 g for the 1000 g of oils in its starter recipe.
When and how
- Usually: as the lye liquid.
- Also used: into the oils, at light trace.
- At light trace: Make it into a paste with a little of the recipe’s water.
- Stir it into the recipe’s water and freeze that; the lye goes into the frozen milk.
Meyenberg primary source, Handcrafted Soap (2002) primary source, Fisher, The Complete Photo Guide to Soap Making primary source, Faiola, Pure Soapmaking primary source
What it does to the recipe
- 2.6 % is water, taken off the recipe’s water.
- 27.5 % is fat, which stays in the bar as extra superfat.
- 37.2 % is sugar, which heats the batch.
Int. J. Food Sci. Technol. (2011) primary source
Worth knowing
- Caution: Hot lye scorches it: it darkens and can smell burnt or of ammonia. Keep it cold, and keep the soap cool so it does not gel. Soap Queen supplier or guide
- Once opened, use it within 8 weeks. Meyenberg primary source
- Skin allergy to it has been reported. Asia Pacific Allergy (2021) primary source
Spoons and drops
- 1 tsp ≈ 2.33 g
- 1 tbsp ≈ 7 g
- 1 cup ≈ 112 g
Meyenberg primary source
INCI name
Whole Dry Goat Milk
Recipes that use it
Guides that discuss it
Sources
Composition of goat milk powders, International Journal of Food Science and Technology (2011): moisture 2.6 %, fat 27.5 %, protein 25.6 %, lactose 37.2 %.
Meyenberg powdered whole goat milk, package: 1 cup is 112 g; 2 unpacked level scoops (28 g), each 2 tablespoons, with about 3/4 cup of water.
Handcrafted Soap (North Light, 2002): aloe juice or cold, strong coffee in place of the distilled water; "2 tablespoons (30ml) of powdered goat milk for every 8 ounces (237ml) of water".
David Fisher, The Complete Photo Guide to Soap Making (Creative Publishing International, 2018), p. 105: "If using powdered milk, use as much powder as would be needed to make enough regular strength milk to substitute for the water." At the regular strength on the Meyenberg package, 28 g (two scoops of 2 tablespoons) to about 3/4 cup of water, that is 4 ÷ 0.75 = 5.33 tablespoons per cup of the water.
Anne-Marie Faiola, Pure Soapmaking (Storey Publishing, 2016), recipes in chapters 8–10. 100% Castile-Brine Stamped Cube: "1 tablespoon sea salt" dissolved in the water before the lye, for 33 oz of olive oil. Oatmeal Soap for Babies: "2 teaspoons bentonite clay dispersed into 4 tablespoons distilled water" and "2 tablespoons colloidal oatmeal" at thin trace, for 15.1 oz of oils whose olive oil is infused with "2 tablespoons Egyptian chamomile" in a teabag in 14.5 oz of oil, 2 hours in a double boiler. Nettle & Yarrow Upcycle: "2 teaspoons dried yarrow powder dispersed into 1 tablespoon apricot kernel oil" in one of two halves of 24.1 oz of oils. Buttermilk Honeycombs: "3 tablespoons honey" at thin trace for 25.1 oz of oils. Banana Cream Pie Layered Bars: "1.2 ounces banana, 1.5 ounces whipping cream, and 1.5 ounces water, pureed" at thin trace for 35.2 oz of oils, then the freezer "for 24 hours to avoid overheating from the sugars in the banana". Annatto-Yarrow with Embeds: "1 tablespoon spirulina powder" and "1 teaspoon yarrow powder", added "directly to the hot lye-water", for 7.1 oz of oils; "2 tablespoons poppy seeds" in one of two halves of 34 oz of oils. Cucumber Layers: "1 ounce cucumber puree" into the whole batch at thin trace, 22 oz of oils. Gardener Scrub with Coffee Grounds: 50 oz of oils, the batter divided "into four exactly equal sections", one each for "5 teaspoons paprika", "5 teaspoons ground orange peel dispersed into 1 tablespoon of canola oil", "5 teaspoons brewed coffee grounds" and "10 teaspoons green zeolite clay". Indigo-Annatto Negative-Space Funnel Pour: "1.5 tablespoons indigo powder" whisked into the lye-water and "1 tablespoon alkanet root powder dispersed into 1 ounce sunflower oil" at very thin trace, 35.2 oz of oils; "In order to bring out the best color for the indigo powder, the soap must go through a hot gel phase". Black Tea Funnel Pour: 5.5 oz of brewed black tea added at thin trace, 5.5 oz of water for the lye, 33.1 oz of oils. Goat Milk Sunset Burst: "0.7 ounce goat milk powder dissolved in 1 ounce distilled water" for 17.1 oz of oils and "1 ounce goat milk powder" for 25.2 oz, added at trace: "To help avoid scorching, this recipe incorporates the goat milk by using a concentrated solution of powdered goat milk."
Soap Queen, adding lye to milk: the lye into frozen milk, slowly; scorched milk turns "from a creamy white to a golden yellow" with an "ammonia-like smell for up to 10 days"; gel phase scorches it.
Asia Pacific Allergy 11 (2021) e13: goat’s milk allergy developing after use of a goat’s milk soap.