Apologies in advance - I usually see these threads and think 'give your head a shake and get it ate' and now here I am 
Fresh, ready-made mash from Tesco, with a use by date of the 20th, so 2 days out of date. I'll give it a sniff when I open it (but how dodgy can potato smell?) and an extra blast in the microwave. But I'm 39 weeks pregnant and could do without a dodgy stomach.
Thanks!