A baby can be fed out of any properly sized container, but it is nice to have perfectly sized baby feeding bowls that might also come with safety features to prevent spills or harm to the infant. These bowls are generally made with plastic because a baby might hurt his hands on a ceramic surface or it might break into dangerous shards. A proper bowl is generally sturdy but made of a material that is not hard enough to easily injure a small child.
Feeding trays for infants might contain cubbies for different foods just as a cafeteria tray. This is very convenient for a parent who needs to feed different food while dealing with a fickle infant or toddler. As any parent will experience, small children do not like unfamiliar tastes as when mixing different types of paste or food.