The fermentation, drying, and curing rooms shall be kept in a dust-free clean condition and free of flies, insects, and rodents.
Drying units, racks, and trucks shall be kept in a clean and sanitary condition.
Drying pans, trays, belts, scrapers, or curing racks, if used, shall be kept in a clean condition.
Oils and waxes used in oiling drying pans or trays shall be of edible quality.
Equipment used for pulverizing or sifting dried albumen shall be kept in a clean condition.