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.
Great to have in your handbag for those moments you are just going to the Supermarket for one item and end up with a lot more. Love the Museum range. Bags are very strong. I keep mine in the pouch provided to make storage easier. Bought 2 others as presents and I'm sure they will love them too!