To calculate the overall star rating and percentage breakdown by star, we don’t 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.
Not microwave safe. I put it in the microwave to reheat my coffee for 30 seconds and the cup was so hot I needed oven mitt to remove it from the microwave. They're cute but not suitable for those who need to warm up their coffee.