I bought some wine today, couldn’t get it opened, took away all the wrapping away at the top and there was no screw top, had a taste and was unsure if it was ok to drink.
I once bought some wine from Marks & Spencer to take on a picnic as it was in a plastic bottle - the top was a bit like a ring pull, once opened it had to be consumed (obviously!) but they were in 250ml bottles -just enough for a slurp at lunchtime.