I did heat a ready-made pasta souse from Sainsbury’s in its’ original plastic container. The instructions said to heat it for 5 mins in the actual container it came in, so I did. However, I am now reading that this is dangerous, especially during pregnancy, because of the chemicals the plastic releases due to the heat. Of course I am not going to do it anymore, but how harmful could it be for the baby if I have only done it once? Am I over-reacting?