The Daily Star's FREE newsletter is spectacular! Sign up today for the best stories straight to your inboxMore than one billion pints of beer have been flushed down the drain this year, thanks to Covid-19, a study has found.Taking into account all the lockdowns across the country since March, researchers found that vast quantities of beer, ale and lager - which has a shelf life of between 2-4 months - has been wasted at pubs, clubs and eateries.The researchers worked out that just over 1bn pints - that’s enough to fill just under 180 Olympic-sized swimming pools - went to waste in 2020.That’s 3.5m barrels of beer - each containing 288 pints - lost, and with the average price of a pint around £4, that works out about £4bn worth of beer gone.