Certo, a popular fruit pectin product, is commonly found in the baking or canning aisle of major grocery stores, supermarkets, and big-box retailers like Walmart or Target. It’s usually sold alongside other canning supplies, such as mason jars and preserving lids. If you’re shopping online, Certo is available on platforms like Amazon, Walmart’s website, or specialty food retailers. For those in the U.S., grocery chains like Kroger, Safeway, or Publix often stock it. If you’re struggling to locate it in-store, asking a staff member or checking the store’s online inventory can save you time.