Cold-Process Soap Making

Learn to make cold-process soap from scratch using vegetable oils and lye. You'll pick up the basics while making a batch of honey-oatmeal soap, and then experiment with colors and fragrances. We'll discuss proper usage and storage of lye, mixing lye and water, oils for soap making, fragrance oils, essential oils, superfatting, additives and exfoliants, coloring, molding, and curing. A $30 materials fee is payable to the instructor at the first class. Instructor: Barbara Thomas



Start Date

February 2, 2020









2 Sundays, 2-5pm. February 2 & 9.

A $30 materials fee is payable to instructor at the first class.

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Instructors: Barbara A. Thomas


Barbara A. Thomas

Barbara Thomas is the owner of Artifact Soapworks Limited, whose vegan-based soaps depict "artifact' shapes such as the Venus of Wildendorf and the ancient Egyptian goddess Hathor. She regularly designs her own soap molds. Barbara holds a B.S. in Chemical Engineering from MIT.

In her more than 15 years in the soap business, she has enthusiastically taught her craft through private lessons as well as at the Amigos School in Cambridge, MA. Barbara is a software developer, public speaker, writer, knitter, model, and voice actor - all of which she incorporates into her soap craft. Her artisanal soaps have been featured in numerous galleries nationally.