|Better Farming Series 16 - Roots and Tubers (FAO - INADES, 1977, 58 p.)|
Cassava roots contain a poison, prussic acid.
Some contain a great deal of poison; these are mainly the bitter tubers. Others, the sweet tubers, contain little poison.
The poison can be removed by thoroughly washing the root; by drying it or by cooking it thoroughly.
Before giving cassava to people or to animals, it must always be well cooked.