Wednesday, January 8, 2014
Why the heck did I buy this and what can I do with it? Captex SBE or ButterEZ
An aside on melting butters (from the FAQ). Let's look at the fatty acid profile of shea butter - 3 to 7% palmitic acid (C16), 35 to 45% stearic acid (C18), 40 to 55% oleic acid (C18:1), and 3 to 8% linoleic acid (C18:2). The palmitic and stearic acid have different melting and solidification points (the oleic and linoleic aren't solid fatty acids, so they aren't relevant for this situation). After melting, the palmitic and stearic acids will eventually turn solid again, but each does it at a different temperature. If they cool slowly, the fatty acids can crystallize into large clumps, which causes the graininess. If they cool quickly, they won't have time to crystallize and you'll have a smooth product. This is one of the reasons it's suggested we temper our butters by heating them and cooling them quickly in the freezer to get rid of grains!
How do we use it? Weigh it in a heatproof container along with your heated oil phase and use as you would any other butter. As the melting point of stearic acid is 69˚C, you will want to get the temperature above that point.
To use it to temper our butters, try it at 10% to 25% the weight of the butter in your products. To use it as a substitute for our butters, just substitute it for whatever the butter was in the product, except for something like a whipped butter - don't try using ButterEZ for that purpose! To use it to increase glide in a lotion bar, add it at up to 25% in the heated oil phase.
Join me shortly for a quick tutorial on how to use this to reduce grains in your product, and join me tomorrow as we enjoy a little formulating with Captex SBE/ButterEZ.