Olive Oil Labels: 7 Key Terms To Know

  • By David McCoper

Published: Thursday, Jul 12, 2025

Olive oil is a staple in kitchens worldwide, celebrated not only for its rich flavor but also for its numerous health benefits. However, when purchasing olive oil, understanding the information printed on the label is essential. Labels provide valuable details that help you identify the quality, origin, and characteristics of the olive oil. Being familiar with these terms will enable you to choose the best product for your needs and avoid common pitfalls.

Below, we explain seven key terms you’ll often find on olive oil labels. Knowing what they mean ensures you get a premium olive oil that is fresh, healthy, and flavorful.

Extra Virgin Olive Oil (EVOO)

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Extra virgin olive oil is the highest quality and most natural form of olive oil available. It is extracted mechanically without any chemical treatment or excessive heat, which preserves its natural antioxidants, flavor, and nutrients. EVOO has a low acidity level (below 0.8%) and contains the most health-promoting polyphenols. It is ideal for salad dressings, dipping, and low-heat cooking to maintain its delicate flavor.

  • Highest quality, mechanically extracted
  • Acidity below 0.8%
  • Rich in antioxidants and polyphenols

Early Harvest Extra Virgin Olive Oil

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Early harvest olive oil is produced from olives picked at the very beginning of the harvest season when they are still green and unripe. This type of olive oil tends to have a stronger, more bitter taste and significantly higher polyphenol content compared to oils made from ripe olives. The higher antioxidant content makes it especially beneficial for health, offering better protection against inflammation and aging.

Cold Pressed / Cold Extracted 

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Cold pressing means the oil is extracted at temperatures below 27°C (80°F), without heat that could degrade its quality. This process ensures that the olive oil retains its nutritional profile, flavor, and aroma. Cold-pressed oils are considered superior to those extracted using heat or chemicals.

  • Extracted without heat (below 27°C)
  • Preserves flavor, nutrients, and antioxidants
  • Preferred for premium olive oils

Acidity Level

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The acidity level measures free fatty acids present in the olive oil, indicating its quality. Lower acidity generally means fresher and better-quality oil. Extra virgin olive oils have acidity levels below 0.8%, while virgin olive oil can go up to 2%. Always look for low acidity levels on the label for optimal health benefits and taste.

  • Indicator of oil quality
  • EVOO acidity below 0.8%
  • Lower acidity equals higher quality

Polyphenol Content

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Polyphenols are natural compounds found in olives that provide antioxidant and anti-inflammatory benefits. Some olive oils highlight their polyphenol content on the label, especially early harvest oils. Higher polyphenol levels usually give the oil a slightly bitter and peppery taste, which is a sign of superior health benefits.

  • Natural antioxidants in olive oil
  • Protect cells from damage
  • Higher levels = better health benefits

Organic Certification

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Organic olive oil comes from olives grown without synthetic pesticides or fertilizers. Organic certification ensures environmentally sustainable farming practices and often results in higher-quality oils. Look for official certification logos such as USDA Organic or EU Organic on the label.

  • Grown without synthetic chemicals
  • Environmentally friendly farming
  • Certified by trusted organizations

Harvest Year

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The harvest date tells you when the olives were picked and the oil was produced. Olive oil is best consumed fresh because it can lose flavor and nutritional value over time due to oxidation. Ideally, choose oils harvested within the past year and consume them within six months after opening.

  • Indicates oil freshness
  • Prefer recent harvests (within 12 months)
  • Consume within 6 months of opening

How To Choose The Best Olive Oil

When selecting olive oil, consider these seven label terms together. For the richest flavor and highest health benefits, choose an extra virgin, early harvest, cold-pressed olive oil with low acidity and high polyphenol content. Organic certification and a recent harvest date are additional quality guarantees. Store olive oil in a cool, dark place to preserve its freshness.

Why Knowing These Terms  Metters The Best Olive Oil

Understanding these label terms helps you avoid misleading marketing and ensures you invest in olive oil that is fresh, nutritious, and flavorful. Many consumers unknowingly purchase lower-grade oils labeled simply as “pure” or “light,” which are often refined and lack the beneficial compounds of extra virgin olive oil.

Our Recommendation: Garisar Early Harvest Arbequina Extra Virgin Olive Oil

Understanding these label terms helps you avoid misleading marketing and ensures you invest in olive oil that is fresh, nutritious, and flavorful. Many consumers unknowingly purchase lower-grade oils labeled simply as “pure” or “light,” which are often refined and lack the beneficial compounds of extra virgin olive oil.

How To Use Olive Oil for Maximum Benefit

  • Drizzle extra virgin olive oil raw over salads, vegetables, or bread.
  • Use in low-heat cooking to preserve nutrients.
  • For digestive benefits, consume a tablespoon on an empty stomach, optionally mixed with lemon juice or warm water.

Summary

Understanding these seven key terms on olive oil labels — extra virgin, early harvest, cold pressed, acidity, polyphenols, organic certification, and harvest date — empowers you to select fresh, high-quality olive oil. This knowledge ensures you enjoy all the flavor and health benefits olive oil has to offer.

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