Mass Transfer - Engineering

Q1:

Coffee is prepared from coffee beans by leaching with

A cold water

B hot water

C dilute hot caustic solution

D naphtha

ANS:B - hot water

Coffee is typically prepared from coffee beans by leaching with hot water. Hot water is used to extract the flavor, aroma, and other soluble compounds from the ground coffee beans during the brewing process. The hot water helps to dissolve and extract the desired compounds efficiently, resulting in a flavorful and aromatic beverage.