It's a kitchen staple that millions of us use every week but if you keep your olive oil next to the oven or the hob, you could be ruining the flavour.
Cooking experts at Good Housekeeping Institute (GHI) have revealed that keeping olive oil in a warm and well-lit place - such as next to your stovetop - will give it a mustier flavour that will become more vinegary over time.
The best place to store it is in a dark, cool place with the lid kept tightly on - but be warned, as it doesn't last as long as you might think.
Unlike wine, olive oil doesn't get better with age, but an unopened bottle can last for up to two years if you keep it between 14C and 18C in a dark place.
However as soon as you open a bottle, you should use it within six months so that it tastes its best, according to the GHI experts.