Purchased 1-2 years ago and stored long-term. They were stored in a dark place, so I don't think there's much deterioration, but please understand that returns are not accepted. Please consider this if you agree. There is no visible deterioration or tearing of the product. Weight approximately 200g/bag; both bags have similar weights. There is no clear date of manufacture, but it says 15109 14:05 H. Will be sent sealed in film + envelope.