Stevia is a calorie- and carbohydrate-free all-natural substitute for sugar and artificial sweeteners. Proper handling and storage will provide the longest possible shelf life for your stevia plants.
Stevia are susceptible to mold and mildew if the plants are left in oversaturated or poorly draining soil. Water the plants lightly, keeping the soil just slightly moist, to reduce the risk of spoiling due to mold growth.
Dry the stevia plants for several days after harvesting. Grind the product that you want to store as green stevia powder. Store the leaves in an airtight container, and the powder in a clean glass jar with a tight-fitting lid. Dried stevia will retain its sweetness for up to 2 years when stored in a cool, dry location.
Stevia leaves can be boiled to create liquid stevia extract. Green stevia powder is a calorie-free substitute for any other granular sweetener.