Iodine Values of Various Soap Making Oils

The iodine value is a measure of the saturation of a fat or oil (how many centigrams of iodine can be dissolved per gram of oil or fat). Saturated fats have low iodine values, and unsaturated fats have high iodine values. There are a few exceptions, but usually fats with high iodine values make softer soaps and fats with low iodine values make harder soaps. Keep iodine values in mind as you combine oils to make your own soap recipe. — North Country Soap Making Library

Oil	Iodine Value
Almond oil, sweet	105.0
Apricot kernel oil	102.5
Avocado oil	80.0
Babassu oil	15.5
Castor oil	85.5
Cocoa butter	36.5
Coconut oil	10.4
Corn oil	122.6
Cottonseed oil	105.7
Jojoba	85.0
Lard	58.6
Neem oil	71.0
Olive oil	81.1
Palm oil	54.2
Palm kernel oil	37.0
Peanut oil	93.4
Safflower oil	145.0
Sesame oil	106.6
Soybean oil	130.0
Sunflower seed oil	125.5
Tallow, beef	49.5
Tallow, mutton	40.0
Wheat germ oil	125.0