Janine - When the kids were bf, i used to have a tin of formula in the cupboard for emergencies, and let me tellyou, it was never used within 4w!! I think Decans tin i had for 6 months... and it did him no harm. I think they say that so you will throw it out and buy more tins from them :rollyes: I wouldnt be too worried, honestly. Love the new av