Free fatty acidity · 02/08
Short answer
Acidity is a laboratory measurement; it does not describe sour taste. The IOC limit for extra virgin olive oil is 0.8%, and other chemical and sensory criteria must also be met. A low number alone does not prove good aroma or freshness.
≤ %0,8
One IOC criterion for EVOO
Check the label
Determine whether the number is a brand claim or a dated test result for the specific batch in your hand.
Important note
Do not automatically interpret a lower number as better oil; tasting and other analyses matter too.
Read the full explanation
Sources