Extra virgin olive oil
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Harvest date
More informative than the best-before date alone.
Dark glass
Protects against light – clear bottles are a warning sign.
Acidity
Below 0.8% is mandatory for "extra virgin"; lower is better.
Origin
A specific region instead of "from EU countries" is a good sign of quality.
Comparison
| Criterion | Region + harvest date | Generic extra virgin | Refined |
|---|---|---|---|
| Aroma | Pronounced | Mild | Neutral |
| Light protection | Dark glass | Varies | Doesn't matter |
| Ideal for | Cold, finishing | Everyday | Frying |
Buying advice in detail
"Extra virgin" is the highest quality grade for olive oil in the EU – but that is all the term tells you. Whether the oil is fresh, regional and fine in aroma only becomes clear from the harvest date, origin information and packaging.
Quality grade and origin are two different things
"Extra virgin" describes the quality grade under EU law. Where the oil comes from is stated separately on the label: a statement such as "blend of olive oils from EU countries" names no region; a specific country or region is much more concrete.
Harvest date and vintage
Olive oil is a fresh product. A printed harvest year or harvest date helps more than the best-before date alone; however, it is not required on every bottle.
Light protection
Dark glass, a tin or a carton protects against light. Clear bottles on a bright shelf are less favorable for shelf life.
PDO and PGI origin labels
For oil with PDO or PGI status, the growing area and processing are defined. This is a seal of origin, not a promise of flavor.
Flavor by use
Fruity, grassy oils with a slight pungency and bitterness suit salad, bruschetta and vegetables. Milder oils are more versatile, for example for fish or baking.
When not to buy
- You only need oil for searing in large quantities: A not quite so fine oil is more economical for that.
- You use oil very slowly: A large bottle loses aroma before it is empty – better to choose smaller containers.
- You do not like pronounced bitterness or pungency: Intense oils from young olives can scratch the throat and are a matter of taste.
Use & care
- Store in the dark and cool, but not directly next to the stove. Close tightly after each use so less oxygen reaches the oil.
- Avoid very high heat: smoking oil tastes bitter and smells unpleasant. It is well suited for gentle frying and braising.
- Wipe the spout and bottle neck now and then so that no rancid oil residue builds up.
Frequently asked questions
Can I use extra virgin olive oil for frying?
Yes, but the delicate aromas fade with heat – a less expensive oil is enough for that.
Why does olive oil turn rancid?
Through light, heat and oxygen. Store in the dark, cool and tightly closed.
How can I tell that the oil is rancid?
It smells of old nuts, wax or putty and tastes flat. Fresh oil smells fruity, grassy or of tomato leaf.
Is sediment a problem?
Fine sediment can occur in unfiltered oils. It is not automatically a defect as long as smell and taste are right.
How long can I use an opened oil?
That depends on storage and the oil. As a rule of thumb: use within a few months after opening and pay attention to smell and taste.
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