Ice Cream Mix
Ice cream mix comprises milk fat, milk solids-not-fat (MSNF),
sweeteners, stabilizers, colors, emulsifiers, and water. Dairy and
other ingredients used to supply these components are chosen
on the basis of their cost, availability, and quality of the finished
product. An account of composition of various frozen dairy
desserts is presented in Table 3. The source of fat that is derived
from milk ingredients (e.g., cream and butter) is common in
North America and many other parts of the world, while fat
derived fromnondairy sources (e.g., coconut oil and palmkernel
oil) is more common in parts of Europe and Asia. The triglycerides
in milk fat have a wide melting range of 40 to 40 C.
Consequently, at refrigeration temperatures, there is always a
combination of liquid and crystalline fat within the globules.
The resulting solid–liquid ratio at freezer barrel temperatures is
important for formation of ice cream structure, as crystalline fat is
required for partial coalescence. Nondairy fat sources must also
be chosen to provide a suitable solid fat content.