The fufu starch in this article is made from fermented cassava that has been soaked in water for days.
How to do it
Harvest Cassava or buy

Peel off the outer skin of the cassava as shown

Wash the peeled cassava thoroughly

Soak the cassava in a bucket or bowl of clean water. Make sure all cassava is under the water surface. This process is to soften the cassava. It can take between 4 to 10 days for the cassava to soften

With a bowl of water and a plastic sieve as shown, squeeze and mash the softened cassava with your hand in the sieve partially submerged in water to extract the starch into the water. You can throw away the residue or dry and blend it and use to feed your chickens

If the soaked cassava is still to hard to process with your hand you can blend it then sieve in a bowl containing clean water as in the previous example. Blending the cassava may make the fufu more starchy
Leave the processed mixture to settle for like 8 hours. You can speed up the process by pouring the mixture in a sieve bag and apply slight pressure by tieing the bag so that water goes out slowly into the bowl as shown


Extract the raw fufu starch into a pot ready to cook

To watch the video see BELOW