Fruit puree of strawberry. Purén is pasteurized, fast chilled and packed in aseptic (sterile) Multi-layer aluminum bag with screw cap. Léonce Blanc Puré Strawberry 1kg  Content: Puree of strawberry (Strawberry) . Strawberry spur. Carrot juice. Natural flavor. Weight: 1 kg (2.2 lbs) Shelf life: At least 12 months from the date of manufacture at room temperature. Preferably store in a refrigerator, or freeze in and thaw up for use. Opened packaging keeps about 5 days in the refrigerator. Use in beer: Carefully add to the earth vessel when the beer yeast for 4-7 days. Then let the beer continue to ferment for 7-10 days or as the recipe describes.