Final answer:
Milkshake flavors vary and can include chocolate, vanilla, strawberry, among others, while the milk used is generally whole milk (about 3.25% milk fat), though other milk types can be used depending on dietary preferences. Protein milkshakes, specifically, are enriched with protein powder.
Step-by-step explanation:
In answer to the student's question about milkshake flavors and the percentage of milk used to make them, it's important to note that the flavors can vary widely depending on the establishment. Popular flavors often include chocolate, vanilla, strawberry, and more exotic varieties such as cookies and cream or mint chocolate chip. As for the percentage of milk, this can also vary, but typically milkshakes are made with whole milk, which contains around 3.25% milk fat. Some places might use reduced-fat milk (2%), low-fat milk (1%), or even non-fat milk. However, the exact percentage used can depend on the specific recipe of the restaurant or ice cream shop.
Moreover, additional ingredients like protein powder can create different types of milkshakes, such as protein milkshakes which are popular among bodybuilders and those looking for a high-protein diet supplement. These protein milkshakes often use a blend of protein powder and milk, as depicted in Figure 19.6.1. The type of milk used in these would similarly vary based on dietary preferences and desired caloric intake.