Why is cassava coated in wax for storage?

Cassava is coated in wax for storage primarily to prevent sprouting. This process helps to create a barrier that reduces moisture loss and limits the exposure of the cassava to air, which can trigger sprouting. Sprouting occurs when tubers are stored improperly or for extended periods, leading to deterioration of the quality and nutritional value of the cassava. By using a wax coating, the shelf life is effectively extended, preserving the tuber's integrity and making it suitable for consumption over time.

While there are other methods of preserving food involved in controlling flavor, color, or pest damage, the specific purpose of waxing cassava centers around inhibiting sprouting to ensure that the product remains viable for longer periods during storage.