Amazon calculates a product's star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
I usually buy this from supermarket and taste is good but i bought it from here and the taste is awful ! Taste like metal ! Am sure it’s from storage, but if you don’t know how to store it then don’t sell it from the first place.