Common constituents are peanuts (actually a legume), almonds, walnuts, Brazil nuts, cashews, hazelnuts (filberts), and pecans.
In addition to being eaten directly, mixed nuts can be used in cooking, such as for Tunisian farka,[2] tarts,[3] and toffee.
[13] Besides peanuts, cashews are usually the next least expensive nut, and in deluxe mixes they tend to be the most common ingredient.
[15] Percent composition by weight is a serious matter in the U.S., where mixed nuts have been regulated by the Food and Drug Administration since 1977.
A 1964 Consumer Reports investigation of 124 cans of mixed nuts, representing 31 brands bought in 17 American cities, determined that most mixed nuts of the time were mostly peanuts, often 75%; peanutless brands were usually dominated by cashews.
Consumer Reports concluded, "What's needed of course is a Federal standard of identity...", detailing a list that of requirements that, with the exception of their desire to limit broken nuts, anticipated the 1977 rules.
The container volume must be at least 85% filled, and the label must state whether any peanuts are unblanched or of the Spanish variety.
[1] Modifying words like "fancy" or "choice" have not historically carried any legal meaning in the United States, and they remain absent from the current regulations.
[16] The ruling said It seems to me that until the Department establishes a set standard of quality... it would be altogether unsafe... to make them amenable to such a vague and indefinite standard as I understand the Government seeks to establish by the testimony of men engaged in the business of handling nuts.