Download Ebook Scientific Soapmaking: The Chemistry of the Cold Process, by Kevin M. Dunn
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Scientific Soapmaking: The Chemistry of the Cold Process, by Kevin M. Dunn
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Until now, there were just two kinds of books on soapmaking. Books for the commodity soap industry emphasized the economical production of soap by the ton and were written for those with a background in chemistry and chemical engineering. Books for the emerging craft industry emphasized the production of high-quality soap by the pound and were aimed at those familiar with the format of cookbooks. Makers of handcrafted soap often wish they had paid more attention in chemistry class so that the information of the commodity soap books would be accessible to them. Scientific Soapmaking answers that call by bridging the gap between the technical and craft literatures. It explains the chemistry of fats, oils, and soaps, and it teaches sophisticated analytical techniques that can be carried out using equipment and materials familiar to makers of handcrafted soap. Presented in a college textbook format, Scientific Soapmaking guides students and individual soapmakers alike to formulate questions about soap and design experiments to answer those questions scientifically.
- Sales Rank: #135579 in Books
- Published on: 2010-03-16
- Original language: English
- Number of items: 1
- Dimensions: 9.02" h x .96" w x 5.98" l, 1.39 pounds
- Binding: Paperback
- 432 pages
Most helpful customer reviews
49 of 50 people found the following review helpful.
Titrate your own oils
By Michele Lee
The first time I cracked this book open, all of the technical information was lost on me. Then I started selling my soap, and I realized that if I wanted a product that wasn't superfatted, which I didn't (that unsaponified oil goes down the drain, after all), I would need to titrate my own oils. Otherwise my soaps could turn out lye heavy even running it through a lye calculator, which uses average SAP values, and following the recipe exactly.
Yes, I own just about every soap making book on the market today. No, none of them tell you how to titrate your oils. This book does. It also tells you how to measure properly, how to test your bars for various qualities, what to do to avoid the dreaded orange spots, and why it's a waste of time adding "superfatted" oils to your soap last.
There is so much more in here but it is definitely for the chemistry lover. If you just want to make a bar of soap, you can do that with almost any soap making book. If you want to standardize your bars so that you know exactly what you are getting each and every time, this is the book you would buy.
98 of 106 people found the following review helpful.
Good for chemistry students and professional/experienced soap makers
By K. Ammon
Scientific Soapmaking is a book that takes soap very, very seriously. It's dense with information, but that information may not be exactly what you expect. While a lot of the book does indeed cover the underlying chemistry of soap and tackles some of the important issues soap makers face, a huge portion of the book is all about doing your own experiments. The entire first third of the book is teaching you how to make small (1-bar), highly accurate (measuring ingredients in grams to two decimals out), quick-turnaround (you're buying a roasting oven to speed things up) test runs.
This degrees of accuracy and reproducibility is such that I can only imagine a full-time professional being interested in jumping through these hoops to get there. The problem is that he doesn't gear the book just towards professionals, or even experienced soapmakers; he tries to bring beginners - who have never made a bar of soap, let alone used a lye calculator - up to speed. Beginners who have never made soap before should not be relying on this book to get them started: he asks you to make a substantial investment in equipment, chemicals, and time (leaning how to do things in very specific ways) when you don't even know you're going to like the hobby or stick with it. He should have started with the assumption that anyone who would want to pick up this book has made soap already. The book grinds to a halt every time he starts talking about why you have to mix oils for the best results or what a slab mold is. Everyone who has read another soap book knows what coconut oil brings to the party, how to use an online lye calculator, and they've probably made their own castile at some point, so stepping slowly through these issues like you don't know a thing about them becomes tedious.
I suppose he's trying to be inclusive of beginners to make the book suitable for students in a chemistry class. Not only does he guide you through a bunch of experiments, a lot of them aren't even soap-related. The first part of the book leads you into soap chemistry by asking you to perform a whole series of experiments with acids, bases, alcohols, and more. There are also "Practice Problems" at the end of the chapters. I skipped all this and decided to just take his word on the fact that Xg of acid would neutralize Yg of alkalines. I'm a hobbyist soap-maker and I do this for fun: I didn't want to run my own experiments, I just wanted to know the results of his.
All this chemistry talk does eventually lead into what I was really after: namely, what happens when lye meets oils. And I was excited when a couple of big, fat light bulbs went off over my head. I learned about rancid oils, what happens during the curing process, and why Castor oil behaves differently than everything else. Once I slogged my way through a bunch of skippable math instruction and background info, things got much more informative.
Finally, the very back of the book is where he answers the questions a soap maker is really after. Soda ash, DOS, lye discounting vs superfatting, water discounting, temperature changes, and more have been tested and laid out in charts.
My final verdict? Professionals should probably own this book, and hobbyists would benefit by reading through it at least once. There's some very good information in the pages, but an average soap maker can skim half the chapters, skip the experiments, and ignore the instructive problems. I suppose this book is also written for classroom instruction, but the very things that make it a good introductory textbook make it a slow, frustrating book for soapers. Still, I'm a soaping hobbyist myself and I'm glad I bought the book.
33 of 34 people found the following review helpful.
Great resource for handcrafted soapmakers
By Elaine Koronich
"Scientific Soapmaking" stands out from many books on the market geared towards cold-process handcrafted soapmakers that are filled with recipes, instructions, and guides. In this book, Kevin combines his extensive knowledge of chemistry and soapmaking with practical advice to lay the foundation for systematic exploration into the world of saponification.
The book starts with basic protocols on weighing, chemical handling, and supplies for your soapmaking lab. And then follows with in-depth information on oils and their structures, acid and bases, saponification stoichiometry, and analytical techniques to test your starting materials and soap. These are all tools for you to bring into play when addressing an issue in the soap pot, formulating a recipe with new oils or additives, or troubleshooting finished soap issues.
The last section, research and development, leads you through five research projects conducted by Dr. Dunn and his students at Hampden-Sydney College to answer long-standing questions asked in the cold-process handcrafted soap community: causes of the dreaded orange spot, effect of time and temperature on saponification, effects of lye and water discounts, and factors that affect trace. This last section is what makes this book so unique and valuable for a cold-process handcrafted soapmaker - the problem is defined, a scientific approach is composed, tests are run, and the data is analyzed and discussed.
"Scientific Soapmaking" fills a knowledge gap for the cold-process handcrafted soap community and I recommend it as a great resource for all handcrafted soapmakers.
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