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Drying oil containing eleostearic acid. Creates very hard bars but tricky to work with.
INCI: ALEURITES FORDII SEED OIL
Tung Oil (ALEURITES FORDII SEED OIL) is a soap-making oil used in handmade soap recipes. Its SAP values are 0.1350 for NaOH and 0.1900 for KOH, which helps dial in accurate lye amounts.
Typical usage stays below 10% of total oils. In practice, it is vegan, palm-free.
Tung Oil has an NaOH SAP value of 0.13500 and a KOH SAP value of 0.19000, meaning approximately 135g of sodium hydroxide saponifies 1kg of this oil. It is typically used at 0–10.00% of total oil weight in cold process soap recipes.
Shaded areas show the ideal range for balanced soap. Values outside these ranges may still produce good soap depending on the overall formula.
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