An experienced woman uses one quick stroke of a knife to take the dirty peel off of cassava roots. She makes it look easy. Cassava is the staple farmed plant of the Amerindians, providing fiber to their fruit, fish, and chicken diet. It is a poisonous plant, full of cyanide, so preparation is key. They peel, shred, and then put cassava in a matapee, a large woven long basket that hangs, and using human weight, the cassava is strained of it's deadly poison. This poison can then be used in fishing and hunting.