To calculate the overall star rating and percentage breakdown by star, we do not use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I bought 2 packs, used 1 a week for my meals. While it's technically vacuum sealed, the second pack started going bad in my fridge after around 7 days. Not a problem with the product, just my frequency of cooking.