Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
So far so good, I’ve only had the product for a few days but I like the taste of the green tea. It does lower my anxiety and I seem to have more energy. If that changes, for better or worse, I will update my review. Everything was shipped on time and as shown.