We try to source our material as naturally as possible. If the tea has the term "Organic" in its title, then its a material with organic certificate; if it has "Natural Farming" in its title, then it is organically grown without a certificate; if it has "Wild" in its title, then it is wildly grown; if none of these terms appeared in the title, then it is a conventionally grown material which will have applied pesticides and herbicide in a safe quantity.