This is due to temperature fluctuations, causing pressure inside the containers to increase, possibly leading to explosions and spills.
When beer freezes, its volume increases by about nine percent. As it warms up, the CO2 separates from the liquid and moves to the top of the can, raising the pressure and making the can prone to explosion.
A survey by the RoSPA found that around 5,000 people are injured each year in garden shed-related accidents, often resulting from improper storage of tools and hazardous materials.
Furthermore, approximately 20 percent of UK households store hazardous materials such as chemicals and flammable liquids.
Nick Blucert, head of bar at The Duke of Greenwich pub said: “One of the biggest mistakes I see people making is storing beer in places like garden sheds or garages where temperature swings are unavoidable.
“Many think cold beer left to warm up and then cooled again is fine, but that’s a misconception – those temperatures can alter the taste and carbonation. Keep it cool, dark, and avoid drastic changes – it’s the golden rule for a reason.”
Luke Dejahang, a gardening expert and CEO of Crown Pavilions added: “By being mindful of what you store in your garden shed, you can prevent accidents and ensure that your belongings remain in good condition.
“We want to help homeowners make informed decisions, and not experience any unpleasant surprises.”