Fridge maker Beko is urging customers to slip a piece of A4 paper into their fridge this week while the weather is still hot.

The common letter-sized paper used in Europe and in most locations outside of North America. At 8.3 x 11.7" (210x297mm), A4 paper is slightly narrower and a little longer than "A" size 8.5 x 11 ...

residents are being advised to perform a simple check with a piece of A4 paper before cranking up the heat, which could lead ...