By "formulated products" is meant the class of foods that is compounded from a number of ingredients according to a definite formula, and these ingredients when so compounded do not have a pH low enough to render them commercially sterile when processed without steam under pressure. The control of acidity for this type of product is based on the examination of the finished product, and is determined directly as pH, which must be below 4.6. Samples of the finished product are to be submitted to the laboratory as requested.
Cal. Code Regs. Tit. 17, § 12420