Manufacturing Process
Whey contains little protein. This means ricotta production is a low-yield process, considering the amount of whey required to produce it. The whey is heated, sometimes with additional acid like vinegar or lemon juice, to catalyze the coagulation through heat of albumin and globulin in the whey. The whey is heated to a near-boiling temperature, much hotter than during the production of the original cheese, of which the whey is a remnant. This use for the whey has ancient origins and is referred to by Cato the Elder.
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