Question

Raw whole apples with a moisture content of 87% (wet basis) are peeled and cored before being sliced and dried to 7.5% moisture content (wet basis). 18% of the raw apples mass is lost due to peeling and coring. Assume the peels and cores have the same moisture content of the rest of the apple.

1.) How many kilograms of 87% (wet basis) apple slices (already peeled and cored) are needed to make 30 kg of fried apple slices at 7.5% moisture (wet basis)

2.) How much water needs to be removed during drying?

3.) How many kg of whole raw apples (not peeled or cored) are required to make the 30 kg of the dried product?

Answer 1