Most people have never tasted olive oil — they have used it. They have poured it over bread, dressed a salad, finished a dish. These are valid encounters with oil. They are not the same as tasting it. Professional evaluation of extra virgin olive oil follows a specific three-step method that strips away context, focuses the senses, and produces a consistent, repeatable read of what is actually in the bottle.
Step One: Look
Professional tasters use a small blue glass — cobalt, specifically, so the colour of the oil does not influence the assessment. Colour is not a reliable quality indicator: olive oil can be pale gold or deep green and be excellent or mediocre at either end. However, looking at the oil in ordinary circumstances is still informative. Clarity matters. A slightly cloudy, unfiltered oil that has been recently pressed carries different character from a polished, filtered one. Cloudiness alone is neither virtue nor flaw; what it indicates is filtration status and, roughly, age.
Swirl the glass and observe the viscosity. Extra virgin olive oil has a distinct body — it moves differently from refined or blended oil. A thin, watery oil in a room-temperature glass is often a sign of lower solid content, which correlates loosely with lower polyphenol concentration. This is not diagnostic on its own, but it is a first data point.
Step Two: Smell
Warm the glass between your palms for thirty to sixty seconds. Then cover the mouth of the glass and swirl. Remove your hand and smell immediately. This is the most revealing stage of the tasting.
Extra virgin olive oil should smell unambiguously of fruit. Not generic fruit — specific impressions that tasters have given consistent names over decades of professional evaluation: freshly cut grass, green artichoke, raw almond, tomato leaf, green banana, herbs after rain, ripe apple, citrus peel. A good oil is aromatic and precise. It should not smell of nothing, of wax, of old fat, of metallic surfaces, or — the worst defect — of fermentation and rot. These are the markers of poor fruit, poor timing, poor milling, or poor storage.
A poor oil smells of nothing, or of trouble.
The International Olive Council classifies olive oil defects into fusty, musty, winey-vinegary, rancid, and muddy sediment. Any of these disqualifies an oil from extra virgin classification. A serious taster can detect rancidity — the smell of oxidised fat — in seconds. It is unmistakeable once you know it, and it is present in many supermarket oils that carry the extra virgin label.
Step Three: Taste
Take a small sip — around five millilitres. Draw air across the oil while it is in your mouth. This technique, called strippaggio, volatilises aromatic compounds and carries them to the olfactory receptors at the back of the nasal passage. It sounds unusual. It is necessary. Without it, you are only getting surface-level impressions.
Assess three sensations in sequence. First, fruitiness: is the oil alive on the palate? Does it carry aromatic identity? Second, bitterness: felt at the sides and back of the tongue. This is caused by phenolic compounds — oleocanthal, oleuropein, and their derivatives. Bitterness is a positive attribute in extra virgin olive oil and a direct signal of polyphenol content. It should be present, balanced, and not overwhelming. An oil with no bitterness is an oil that has been refined, oxidised, or pressed from over-ripe fruit. Third, pungency: the peppery sensation felt in the throat, sometimes causing a mild cough. This is oleocanthal specifically, a compound with well-documented anti-inflammatory properties. Strong pungency indicates a young, polyphenol-rich oil. It is a feature, not a flaw.
Common Beginner Mistakes
The most common error is treating bitterness as a defect. Decades of industrial olive oil, selected for mildness and inoffensiveness, have trained consumers to expect neutrality. A bitter olive oil is not wrong — it is fresh, polyphenol-rich, and close to the fruit. The second mistake is tasting at room temperature without warming the oil, which mutes aromatic expression. Third: tasting after eating or drinking. Palate fatigue is real and fast. Tasting olive oil after coffee or strong food is like listening to music in a room where someone is already shouting.
How AL WASAT Scores
On the visual assessment: the 2024 AL WASAT Classic presents deep green-gold with good viscosity and natural clarity. No defects on appearance. On aroma: the nose is immediate — green artichoke dominant, with secondary green herb and a trace of almond that emerges as the glass warms. Clean, precise, no off-notes. On taste: fruitiness is medium-high, with articulate green character. Bitterness rates medium — present and structured, not aggressive. Pungency is medium-high, with a persistent throat finish that lasts several seconds after swallowing. This is consistent with polyphenol content confirmed by laboratory analysis. The 2024 batch scored above 400 mg/kg total polyphenols by Folin-Ciocalteu method — firmly in the high-quality range for the variety and region.
Tasting olive oil properly is not a specialist skill. It requires no certification, no expensive equipment, and no particular vocabulary beyond a few sensory categories. What it requires is attention. The same attention that distinguishes a serious bottle from a mediocre one is available to anyone who decides to use it.