The Truth About Acidity Levels

Summary

Free acidity in olive oil is not about taste — it is a measure of quality and process. Low acidity means the olives were healthy, handled carefully, and cold pressed quickly after harvest. Most supermarket oils sit between 0.5% and 0.8%. Golden Olives is pressed below 0.3% — the result of pressing within four hours of harvest. Acidity is evidence of every decision made before the oil reached you.

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Acidity is the most misunderstood term in the olive oil world.

Ask most people what low acidity means in olive oil and they will tell you it means the oil tastes less acidic. Less sharp. Gentler on the palate. This is wrong — and the misunderstanding matters.

What acidity actually measures

Free acidity in olive oil refers to the percentage of free fatty acids present in the oil. It has nothing to do with flavour. You cannot taste acidity in olive oil. What it measures is the integrity of the olive and the speed and care of the production process.

When an olive is damaged — by disease, by delay, by rough handling — its cell walls break down. Enzymes are released. Free fatty acids form. Acidity rises.

Low acidity means the olives were healthy, handled carefully, and pressed quickly. It is a measure of process quality, not flavour profile.

What the numbers mean

Extra virgin olive oil must have an acidity below 0.8% to qualify for the classification. Most supermarket extra virgin oils sit between 0.5% and 0.8%. Premium oils from careful producers typically fall below 0.3%.

Golden Olives is pressed below 0.3%.

This is not a marketing number. It is the result of pressing within four hours of harvest, using healthy fruit from trees that have been tended carefully for generations. It is what happens when speed and care are not compromised for volume.

Why it matters

Acidity is a proxy for everything that happened before the oil reached you. It tells you whether the producer prioritised quality or yield. Whether the olives were fresh or stored. Whether the press was clean and fast or slow and indifferent.

When you see a low acidity figure on a bottle of olive oil, you are seeing evidence of decisions made long before bottling. Decisions about which olives to pick, when to pick them, and how quickly to press them.

At Golden Olives, acidity below 0.3% is not a target. It is a consequence of doing everything else correctly.