And of course it's a great way to use up gluts from the garden, or any cheap, almost overripe fruit from the local shop.

Pick any ripe or nearly ripe produce because overripe fruit and veg can encourage rot, disease and wasps.

Ethanol naturally occurs in ripe and overripe fruit and consequently early primates developed a genetically based attraction to the substance.

Ethanol can commonly be found in overripe fruit.