Microwaved some mixed veg: peas, carrots, broccoli & cauliflower for dinner and the odd pea was giving orange/white sparks in the microwave. They were from Tesco if that's relevant. The same thing happened when I microwaved some from Iceland a few weeks ago.
Microwave is fairly new, under 2 years, and this does not happen with anything else.
Is there something in the production line I should know about. Slightly apprehensive as I sometimes use these for my baby for dinner for speed. I'm know wondering if there is minute scrapings from the machines or something contaminating?