Cauliflower canning recipes are a lovely way to preserve cauliflower when you’ve got a big harvest. Recipes are generally some form of Pickled Cauliflower and cauliflower-packed relishes like Giardiniera and Piccalilli, along with other vinegar-forward jars that stay crisp and flavorful. Because cauliflower is a low-acid vegetable, plain cauliflower isn’t water bath canned on its own, so these recipes focus on safe, properly acidified preserves with the right processing times.