Malted/ˈmɔːltɪd/ Definition 1 of 2Pro Tip 1/3Beverage Context Often used to describe rich, creamy shakes with a malted powder flavor. She relished her vanilla-malted milkshake. Pro Tip 2/3Beer Ingredient 'Malted' references malted barley, a staple ingredient in brewing beer. The brewmaster discussed the types of malted grains used in their ales. Pro Tip 3/3Historical Usage Malted milk has nostalgic associations with old-fashioned diners and soda fountains. The diner's decor included a vintage malted milk dispenser.