Good Food Blog
Essential oil
Posted at 12:11PM, 14 July 2010 by Carol Wilson - Food writer
A recent survey by The Office for National Statistics has revealed that the UK now consumes 28 million litres of olive oil each year. I think it's wonderful when research proves that something so delicious and enjoyable is actually good for us too. Olive oil is beneficial because it's chock-full of monounsaturated fats - believed to be partly responsible for the low incidence of heart disease in Mediterranean countries.
Olive oil is like fine wine, there are a multitude to choose from
Mediterranean, and especially Spanish and Italian cuisine, would be unimaginable without olive oil. Like fine wines, there are a multitude of oils to choose from, each with its own distinctive flavour and unique character. The flavour depends on the type of olive (there are over 200 varieties), the soil and climate of the region. Whenever I go abroad I make sure to visit at least one small artisan olive mill. It's fascinating to watch the olives being crushed and pressed and you can taste the oil for free before deciding if you'd like to buy a bottle.
Personally, I prefer a single estate rich, fruity olive oil, although it's a matter of personal choice which type you favour - soft, sweet and mild; light and fruity with herbal notes; rich and grassy or full-bodied, intense and peppery. Generally, the earlier the harvest and greener the fruit, the greener and stronger the oil. It takes around 5kg of olives to produce just one litre of oil. Unopened bottles will keep in a cool dark place for up to two years. If refrigerated, the oil will become cloudy as it chills, but will become clear again when it returns to room temperature.
It's best to buy extra virgin olive oil for the best quality and flavour. Oil labelled 'First Cold-Pressing Extra Virgin', can be single estate or a blend of oils from several producers. 'First cold-pressing' tells you that this is the first squeezing of the olives and that the oil contains less than 1% acidity. The acidity in olive oil is determined by the season's harvest and helps to determine its quality: the lower the acidity the better the oil. The oil may be filtered (clear) or non-filtered, which is often cloudy and has a slightly more robust flavour.
Extra virgin oils lose much of their character if heated, so are at their best just as they are. I serve really good olive oil in small bowls for dipping bread and also for dressing salads and drizzling over fish, meat or cooked vegetables.
What's your favourite olive oil?


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