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Household bars

Yellow soap with cocoa-oil

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The oils

Oil As the source prints it Share
Coconut Oil Cocoa-nut oil · 1072 lb 48.9 %
Palm Oil Raw palm-oil · 112 lb 5.1 %
Palm Oil Bleached palm-oil · 336 lb 15.3 %
Edible Tallow (beef/mutton dripping) Tallow · 448 lb 20.4 %
Rosin Resin · 224 lb 10.2 %

Everything else

  • Common salt — 112 lb · for graining out

How it is made

Process Full-boiled
Alkali 450 gallons soda ley at 23° B. · 450 imp gal · 23° Bé
Superfat Not stated
Water as the source states it
Iodine value 27
INS 203

This is a boiled soap. A kettle soap has its excess alkali salted out and drawn off before framing, so the recipe states the alkali charged, never the alkali the bar keeps. Read as a modern cold-process recipe it would be lye-heavy.

What the numbers say

Hardness 60 above 29–54
Cleansing 34 above 12–22
Conditioning 24 below 44–69
Bubbly lather 34 14–46
Creamy lather 25 16–48

Computed from the fatty acids of the fats above. The bands are what the craft has settled on, not chemistry — a bar outside one is not wrong.

The source

Alexander Watt, The Art of Soap-Making: A Practical Handbook of the Manufacture of Hard and Soft Soaps, Toilet Soaps, Etc., Crosby Lockwood and Co., London, 1884, p.75. The Art of Soap-Making: A Practical Handbook of the Manufacture of Hard and Soft Soaps, Toilet Soaps, Etc. · read 2026-09-22

Read from the Internet Archive OCR of the Cornell University Library copy. Page numbers are taken from OCR'd running headers and may be one out where the header digits were damaged.

Read from a scan rather than a proofread transcription, so the figures are checked against the book’s own printed total where it prints one.

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