The term 'soft food for infants' can be summarized as 'PAP, ' which is a three-letter word. PAP is a type of soft food that is often given to infants and young children. It is usually made from cereal grains, such as wheat, oats, or barley, that have been boiled and mashed into a thick paste. PAP is easy to digest and is often used as a weaning food when babies are transitioning from breast milk to solid foods.