7 Pa. Code § 59a.372 – Equipment and utensils.

(a) General construction, repair and installation. Equipment and utensils necessary to the manufacture of cheese and related products must meet the requirements of § 59a.304 (relating to equipment and utensils). In addition, for other equipment the following requirements in this section shall be met.
(b) Starter vats. Bulk starter vats must be of stainless steel or equally corrosion resistant metal and must be in good repair, equipped with tight-fitting lids and have adequate temperature controls, such as valves, indicating or recording thermometers. New vats shall be constructed according to the applicable 3-A Sanitary Standards.
(c) Cheese vats. Requirements are as follows:
1. (1) Open vats used for making cheese must be of metal construction with adequate jacket capacity for uniform heating. The inner liner must be minimum 16-gauge stainless steel, properly pitched from side to center and from rear to front for adequate drainage. The liner must be smooth, free from excessive dents or creases and extend over the edge of the outer jacket. The outer jacket must be constructed of stainless steel or other equally corrosion resistant metal which can be kept clean and sanitary. The junction of the liner and outer jackets must be constructed to prevent milk or cheese from entering the inner jacket.
2. (2) The vat must be equipped with a suitable sanitary outlet valve. Effective valves must be provided and properly maintained to control the application of heat to the vat.
3. (3) Enclosed cheese vats must meet the requirements of the current 3-A Sanitary Standards for Enclosed Cheese Vats and Tables.
(d) Mechanical agitators. The mechanical agitators must be of sanitary construction. The carriage and track must be constructed to prevent the dropping of dirt or grease into the vat. Metal blades, forks or stirrers must be constructed of stainless steel, and be free from rough or sharp edges which might scratch the equipment or remove metal particles.
(e) Curd mill and miscellaneous equipment. Knives, hand rakes, shovels, paddles, strainers and miscellaneous equipment must be stainless steel or of material approved in the 3-A Sanitary Standards. The product contact surfaces of the curd mill must be of stainless steel. Pieces of equipment must be constructed so they can be kept clean. The wires in the curd knives must be stainless steel or other suitable metal, kept tight and replaced when necessary.
(f) Hoops and followers. The hoops, forms and followers must be constructed of stainless steel or heavy tinned steel. If tinned, they shall be kept tinned and free from rust. Hoops, forms and followers shall be kept in good repair. Drums or other special forms used to press and store cheese must be clean and sanitary.
(g) Press. The cheese press must be constructed of stainless steel with all joints welded and all surfaces, seams and openings readily cleanable. The pressure device must be the continuous type. Press cloths shall be maintained in good repair and in a sanitary condition. Single-service press cloths shall be used only once.
(h) Rindless cheese press. The press used to heat seal the wrapper applied to rindless cheese must have square interior corners, reasonably smooth interior surface and have controls that provide uniform pressure and heat equally to all surfaces.
(i) Paraffin tanks. The metal tank must be adequate in size, have parafinned wood or metal racks to support the cheese, heat controls and an indicating thermometer. The cheese wax shall be kept clean.
(j) Automatic curd conveyors. When the salted curd is moved to a hooping station for blocks or barrels by means of an air conveying system, the nonproduct contact surfaces of the system must be constructed of suitable nontoxic material which is corrosion resistant. Product contact surfaces must be constructed of stainless steel with all joints welded or properly gasketed, and all surfaces readily accessible and cleanable. The air shall be filtered and of sufficient quality for the intended use. Air compressors or vacuum pumps may not be located in the processing or packaging areas.
(k) Whey probes. Vacuum equipment used to withdraw whey from cheese must be constructed of stainless steel tubes and be readily accessible and removable for cleaning and inspection.
(l) Cheese vacuumizer. Bulk cheese vacuum chambers, if used, must be installed so that floor surfaces underneath are effectively sealed or have enough clearance so they can be cleaned. Interior surfaces of the vacuum chamber must be constructed and maintained so that the product is not contaminated with rust or flaking paint. An inner liner of stainless steel or other corrosion resistant material shall be provided.