The lye, the water, and how the bar will behave.

A lye calculator you can read. Every number you need to make the batch, and a clear picture of the bar you'll get.

WHAT IT DOES

• 38 oils, butters and fats with SAP values and fatty acid profiles
• Sodium hydroxide, potassium hydroxide or both (for cream soap), with purity settings
• Water by lye concentration, water-to-lye ratio or % of oils
• Superfat, fragrance by % or ounces per pound
• Hardness, cleansing, conditioning, bubbly, creamy, iodine and INS charted against the SoapCalc-style ranges
• Fatty acid breakdown and saturated-to-unsaturated ratio
• Notes that flag harsh, soft, sticky or rancid-prone recipes and say what to change
• Mold sizing from length, width and height
• Cost per batch and per bar, saved recipes, and a printable batch sheet

Who it's for

Cold process and hot process soapers, from the first batch to the craft-fair table.

What you get

• Lye & Leaf (one .html file, runs in your browser, offline)
• A 2-page quick-start guide

Good to know

• One file. No install, no account, no subscription, no internet needed after download.
• Your data stays on your computer. Export a backup any time; import it on another machine.
• Built for a computer screen: Windows or Mac, in Chrome, Edge, Safari or Firefox.
• Instant download.

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