Back in 1960 a dog fancier visited Grannick's Pharmacy and explained that her dog would become nervous before every show and start chewing and licking his coat. She asked if there was anything available to help stop him. No such product existed, but in the days when Irv Grannick learned his profession, pharmacists regularly prepared their own compounds and ointments. He tried different bitter flavorings until he came up with a formula that worked. For some time thereafter he gave his customer and her friends what he called "Bitter Apple" free of charge.
Word spread among dog fanciers and breeders, and before long friends were encouraging Irv to market "Grannick's Bitter Apple." His original "manufacturing plant" was in the kitchen of his home and his wife, Mary, wasn't thrilled. Over the years, Grannick’s Bitter Apple has grown into a full line of taste-deterrents.