§ 59a.332. Dryers.
(a) Spray dryers. Spray dryers must conform to the current 3-A Accepted Practices for Spray Drying Systems. The filtering system shall be cleaned or component parts replaced as often as necessary to maintain a clean and adequate air supply. In gas-fired dryers, precautions shall be taken to assure complete combustion. Air must be drawn into the dryer from sources free from objectionable odors and smoke, dust or dirt.
(b) Roller dryers. Roller dryers must comply with the following:
(1) The drums of a roller dryer must be smooth, readily cleanable and free of pits and rusts. The knives shall be maintained in a condition so they do not cause scoring of the drums.
(2) The end boards must have an impervious surface and be readily cleanable. The end boards shall be provided with a means of adjustment to prevent leakage and accumulation of milk solids. The stack, hood, drip pan inside of the hood and related shields must be constructed of stainless steel and be readily cleanable. The lower edge of the hood must be constructed to prevent condensate from entering the product zone. The hood must be properly located and the stack of adequate capacity to remove the vapors. The stack must be closed when the dryer is not in operation. The augers must be of stainless steel or properly plated and be readily cleanable. The auger troughs and related shields must be of stainless steel and be readily cleanable. Air entering the dryer room shall be filtered to eliminate dust and dirt. The filter system must consist of a filtering media or device that will effectively, and in accordance with good commercial practices, prevent the entrance of foreign substances into the drying room. The filtering system must be cleaned or component parts replaced as often as necessary to maintain a clean and adequate air supply. Dryer adjustments must be made and the dryer operating normally before food grade powder can be collected from the dryer.
Cross References This section cited in 7 Pa. Code § 59a.326 (relating to equipment and utensils).
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