Bests & Worsts Reviews from Amazon

I have had these for less than 6 months. I liked them up until today. I put a little frozen peas and a little frozen corn in one and popped in in the microwave just like always, but this time the container exploded after less than a minute in the microwave. I thought when I read about this in the reviews that they must have done something wrong that caused it. But I've been making peas and corn this way at least once a week for the last 10 years and have never had anything like this happen. Up until 6 months ago, I was using 10 year old Pyrex I bought at an outlet mall.