Description Ideal for restaurants and institutional kitchens. Keeps food fresher in refrigerators, coolers and freezers. Spill-proof, flo-thru package design with cloth filter provides maximum odor protection. After two months, pour contents down drains and grease traps with warm running water to freshen them. Safe for septic systems. Naturally occuring substance. Water soluable, nontoxic. Packaging contains 100% recycled content. 16-oz. box. 12 boxes per case.