Safe to use on all your brewing equipment: buckets, kegs, tanks, vats, bottles and more. Low-foaming formula is superior to other brands of Iodophor for brewing. No-rinse concentrate requires only 1 tsp per 1 1/2 gallons of cool water and 2 minutes of contact time to be effective. BTF Iodophor for professional or home brewing and wine making Low foaming, no rinse sanitizer No residual taste or odor left behind Gentle on hands OMRI Listed (Organic Materials Review Institute)Directions for 12.5 PPM Brewing Sanitizer Solution: Mix 1 tsp BTF Iodophor into 1 ½ gallons cool water Mix ¼ oz (1/2 Tablespoon) BTF Iodophor into 2 ½ gallons cool water Mix ½ oz (1 Tablespoon) BTF Iodophor into 5 gallons cool water Allow solution to contact surface for 2 minutes, then air dry.