We are extremely selective with our suppliers and require that they avoid mineral nitrogen fertilizers and synthetic chemical pesticides and perform annual audits by the national partners of the internationally active certification bodies Ecocert and IMO. The impeccable quality of our products is our top priority. To ensure that it is maintained throughout the entire supply chain, we have our teas checked at all important points of production in accordance with the so-called HACCP guideline for food hygiene (Hazard Analysis Critical Control Points).