As an olive oil expert, I'm excited to share insights on how to determine if your extra virgin olive oil (EVOO) is truly extra virgin. Here's a thought dump into the key factors that can help you identify authentic EVOO.
Certification: Your First Line of Defense
Certification is crucial in verifying the authenticity of EVOO. Look for quality seals like the OlivesNZ OliveMark Seal, which ensures the olive oil meets rigorous standards. This certification involves thorough testing and provide assurance that the oil meets the criteria for extra virgin grade.
Telegraph Hill Extra Virgin Olive Oil is certified.
Flavour Profile: The Taste Test
Authentic EVOO should have a distinctive flavour profile. When tasting, look for:
- Fruitiness: reminiscent of fresh olives
- Bitterness: a positive attribute indicating freshness
- Pungency: a peppery sensation in the throat
High-quality EVOO can have aromas and flavours ranging from green fruit, artichoke, and grass to ripe fruit, nuts, and butter. Remember, if it doesn't taste right, you can return it to the store.
Chemical Profile: The Scientific Approach
While not easily accessible to consumers, the chemical profile of EVOO is a key indicator of its quality. Authentic EVOO should have:
- Low free fatty acid content (≤0.8%)
- High levels of polyphenols (antioxidants)
- Specific ranges of other compounds like peroxides and waxes
Freshness: The Younger, The Better
EVOO is best when fresh. Look for oils from the most recent harvest season. Unlike wine, olive oil does not improve with age.
Storage: Protect from Light, Heat, and Air
Proper storage is crucial for maintaining EVOO quality. Choose oils in dark or opaque containers to protect from light. Once opened, store in a cool, dark place with the lid tightly closed and use within 2-3 months.
Time to Harvest: A Crucial Factor
The time between olive harvesting and oil production significantly affects quality. The best EVOOs are made from olives pressed within hours of harvesting to minimize oxidation and preserve freshness.
Oxidation: The Enemy of Quality
Oxidation degrades EVOO quality over time. Signs of oxidation include a rancid smell or taste. To minimize oxidation, choose oils in proper packaging and store them correctly.
Buy Local: Support and Verify
Buying locally produced EVOO, when possible, allows you to verify the production process and supports local farmers. It also often ensures fresher oil due to shorter transportation times.
Trust Your Supplier: Research and Reputation
Choose reputable suppliers known for their commitment to quality. Research their production methods and look for transparency in their practices.
Date Markings: Decoding the Labels
Understanding date markings is crucial:
- Harvest Date: Indicates when the olives were picked. Fresher is better.
- Bottling Date: When the oil was packaged. Should be close to the harvest date.
- Best Before Date: Typically 18-24 months from bottling. Use this as a guideline, but remember that EVOO quality degrades over time. It should be a maximum of 2 years from Harvest date.
By considering these factors, you can make informed decisions when purchasing EVOO. Remember, high-quality EVOO should taste like fresh herbs and fruit, with profiles ranging from delicate to complex. Trust your senses and don't hesitate to taste before buying when possible. With practice, you'll become adept at identifying authentic, high-quality extra virgin olive oil.
