Tallow
![Tallow made by rendering calf suet](/Images/godic/202502/15/Tallow-beef_suet_after_rendering1605.jpg")
![Tallow consists mainly of triglycerides (fat), whose major constituents are derived from stearic and oleic acids.](/Images/godic/202502/15/TriglycerideTallow1605.png")
![An 1883 ad soliciting tallow from butchers and graziers for soap production in the Hawaiʻi newspaper The Daily Bulletin](/Images/godic/202502/15/Tallow_Ad1605.jpg")
Tallow is a rendered form of beef or mutton fat, processed from suet. It is solid at room temperature. Unlike suet, tallow can be stored for extended periods without the need for refrigeration to prevent decomposition, provided it is kept in an airtight container to prevent oxidation.