How many options for cassava chips drying?

The question of cassava chips drying costs was noted as important in the production of  livestock feed. Several options for cassava chips drying were cited including:

(a)Use of concrete floors like is the case in traditional but this also require warehousing facilities which are costly to set up.

(b)Use of wooden trays, although this is not a feasible option.

(c)Pelletising approaches, but only if the necessary machinery can be made available. Pelletisers are costly. Fabrication of  local pelletisers did not give rise to quality products as some of these degenerate into flour during packaging.

(d)Choosing sun drying for production of cassava chips drying.

Cassava chips machine

Cassava chips slicer introduction:

a. Cassava peeling:  Production of cassava chips starts with the peeling of the cassava. Peeling can be done mechanically or manually. Mechanical peelers peel as much as 2,400 –2,500Kg per hour with a wastage rate of 30-40% while manual peeling does 22Kg per man hour and wastage of 20-25%. Mechanical peelers are problematic because of the non-uniform nature of the cassava roots and the irregularity in size which make smooth peeling difficult. Also, the thickness of the skin, the texture and the strength of adhesion to the flesh of the tuber differ from specie to specie thereby making over-peeling and under-peeling possible. As a result of these problems, processors prefer manual peeling for now till the mechanical is perfected.

b. Cassava washing: The peeled tubers are thoroughly washed to remove all dirt and sand that may adhere to them. Export requirements insist that sand content should not be more than 2%.

Cassava slicer machine

c. Cassava chipping: The washed tubers are carted to the chipping machines where they are chipped into small chips of about 1-2 centimetre thickness and 6-7 cm long. The sizes at times depend on the prescription of the order.

d. Cassava chips drying: The wet chips are taken to the Rotary Dryer where they are dried to 12-14% moisture content.

Cassava chips drying machine

e. Packing: they are then weighed and bagged in 50kg polypropylene bags and stored.

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