Organic steamed green tea (Sencha)is a high quality green tea whose raw material is processed, wrapped,stored and transported strictly complying to the organic agriculture processing system and methods. All of the organic tea products are certified by China Tea Research Institute and IMO. During to different materials,shapes,flavors, etc, the products are divided into different grades, suitable for different customers. The products are divded into 5 grades,from OST01 to OST05, and OST01 is the top grade of our organic sencha. 1, Product description: Organic sencha 2, NO.:OST01 2, Pesticide residue:EU or Japan compliant. 3, Appearance: green color with characteristic taste 4, Technical specifications(average) : Water soluble substance:34.3% Tea Polyphenols:22.0% Total Caffeine: 2.2% Loss on drying: 6.5% 5, Storage conditions : Keep in original package. Store in a cool, dry place, away from heat and direct sunlight. 6, Shelf Life: 2 years in unopened package if stored under proper conditions.