Got a couple of 1 Litre nato Flasks that have been tucked away in the cupboard for a couple of years, unfortunately they have been stored with the caps on, now when you open them they have the most awful plasticky smell, i have tried washing them out and have even filled them water and put some bicarb in them to try and get rid of the smell it's not as bad as it was, but when you take a drink from them you can taste the platic, any ideas on how to neutralise the smell/flavour.
They were stored dry by the way
They were stored dry by the way