What do you need to taste olive oil?

  • A small, clean glass with no smell of its own. A dark glass is best, because it hides the color and color says nothing reliable about quality.
  • About one tablespoon (15 ml) of oil per glass.
  • Water to rinse your mouth between oils.
  • A minute without strong smells around you: no coffee, perfume or cooking.

How do you taste olive oil, step by step?

The method is often called the 4 S's. We split it into five short steps, each shown in a short video.

  1. Pour

    Pour a tablespoon (15 ml) into a clean, odor-free glass. Thin glass is enough — no lab tools needed.

    • ⊚A dark oval glass hides the color so it doesn't sway your impression
    • ∿A small amount swirls through the whole glass
  2. Warm & Swirl

    Cup the glass in your palm until the oil reaches body temperature, then swirl gently so it coats the wall. Cover it for 20 seconds to trap the aroma.

    • ❋Warmth wakes the volatile aromatic compounds
    • ↻Swirling multiplies the surface exposed to air
  3. Smell

    Lift your hand, bring your nose to the glass, and inhale deeply. Don't overthink — name the first thing that comes to mind. A lively, strong aroma = high quality.

    • ❀Freshly cut grass · green apple · tomato
    • ❧Almond · mountain herbs · fresh olive
  4. Sip out loud

    Take a small sip then draw air through your teeth — like sipping hot tea. The goal: spread the oil across your whole tongue.

    • ◔Gentle bitterness at the back — like dark chocolate
    • ✺A peppery sting in the throat = live polyphenols
  5. Swallow & notice

    Swallow and notice what stays. Real oil leaves a clean, lively taste that lingers. Any flat or greasy taste = lower tier.

    • ∞A long, clean finish
    • ✓A feeling of liveliness, not heaviness

What should real extra virgin olive oil taste like?

After tasting, match what you noticed with the two lists below. If you find any flaw from the warning list, the oil is not extra virgin, whatever the label says.

Good signs

Real extra virgin
  • ✓Fresh fruity aroma — grass · green apple · tomato
  • ✓Almond, mountain herbs, or fresh olive
  • ✓Gentle, balanced bitterness at the back of the tongue
  • ✓A peppery sting in the throat = live polyphenols
  • ✓A clean taste that lingers after you swallow

Warning signs

Lower tier · defects
  • ✕Musty or fermented aroma (compost-like)
  • ✕A damp, cellar-like smell
  • ✕Vinegar or spoiled-wine aroma
  • ✕Rancid taste — stale nuts or wax
  • ✕Flat taste · almost no flavor

Why does good olive oil taste bitter and peppery?

Bitterness and the peppery sting come from the phenolic compounds (polyphenols) that fresh, unrefined olive oil keeps and refining strips away. The sting at the back of the throat was traced in a 2005 study to one of these compounds, which the researchers named oleocanthal. 1

So a cough after the first sip is a good sign, not a flaw. A completely smooth, flat oil has usually lost most of these compounds, through age, heat, light or refining.

What should you notice when you taste Leptis Magna?

Leptis Magna is an early-harvest Libyan olive oil, cold pressed within hours of picking, with free acidity of 0.4% or less. Taste it with the steps above next to any oil you already have at home: the difference in aroma and in the peppery finish is the easiest one to notice.

To understand what the grade on a label means, read olive oil grades explained. To check a bottle before you buy it, read how to spot fake olive oil.

  1. Ibuprofen-like activity in extra-virgin olive oilBeauchamp G.K. et al., Nature 437, 45–46, 2005