The eCool uses the centuries-old method of storing food and drink underground to stop it spoiling, but brings the concept right up to date. This is an earth cooler, which uses nothing but the natural lower temperature of the ground to cool your cans of drink.

The eCool stands 113 cm (44 in) tall and weighs 12 kg (26 lb). Most of its body lives permanently underground, where it stores up to 24 standard-size cans (330 ml in Europe, 12 oz in the US).

Installing the eCool is as easy as digging a deep hole, lowering the cooler into it, and then packing soil around its sides. A garden drill would seem the most obvious tool to use, but a shovel will suffice. Once installed, the eCool will remain in situ all year round.