What is flavoured olive oil, and what should you look for on the label?

Lemon, garlic, chilli and oregano olive oils have multiplied both on shelves and online. The legislation has a name for them: flavoured olive oil. And this category has one feature that separates it from ordinary olive oil, which any buyer ought to know.

The short answer

The Turkish Food Codex Communiqué on Olive Oil and Olive-Pomace Oil (2017/26) defines flavoured olive oil as "oil obtained by adding various spices, plants, fruits and vegetables to olive oils, and which in all other respects carries the characteristics of the products in its own category under this Communiqué."

A flavoured oil is therefore not a separate grade. It is an existing grade with flavouring added. If the base oil is extra virgin, it must meet the chemical limits of extra virgin; if it is riviera, those of riviera.

The labelling rule: the flavour cannot be hidden

The labelling article (14/a) is explicit: the name of the flavouring or aroma must appear before the product name and in the same type size as the product name.

In practice that means in "lemon-flavoured extra virgin olive oil", "lemon" must be as large as "olive oil". A small "flavoured" squeezed into a corner breaks the rule. In our piece on how to read a label we explained why this format matters: a consumer has to see at first glance that the product is not pure olive oil.

The detail that matters: the sensory gate closes

The product-characteristics article (5/1-ç) states that for flavoured and/or aromatised olive oils only the quality and purity criteria in Annex 1 apply, and the sensory characteristics in Annex 2 are not taken into account.

That sentence carries a lot of weight. In an ordinary extra virgin oil, finding a defect — musty, fusty, winey or heated notes — pushes the oil down a grade. In a flavoured oil, no sensory assessment is carried out at all. The chemical gates remain: acidity, peroxide value, ultraviolet absorbency. But the taste gate closes.

⚠ This does not mean "every flavoured oil is made from defective oil". It does mean that aroma is the easiest way to cover a defect, and that in this category the rules do not measure taste. Looking at the list of defects and deciding with your own palate goes further here than elsewhere.

The reverse is also true: a good producer closes the gap voluntarily. A flavoured oil whose label gives the grade, variety and harvest year of the base oil is more trustworthy from the start than one that does not.

Two different methods, the same shelf

Co-milling. Lemon, orange, chilli or spice is milled at the same time as the olives. The aroma passes into the oil mechanically, with no separate additive. Production happens inside the cold-pressing line, yields drop and costs rise.

Infusion. Plants or spices are added to already-milled oil, left for a period, then filtered out. This is the most common method.

Added aroma. An aroma compound goes straight into the oil. This is usually why the word "aromatised" appears so often on labels.

⚠ The communiqué does not require the method to be stated on the label. If a producer claims the oil was milled together with the fruit, it is up to them to explain it; if the ingredient list names an aroma compound, the method is the third one.

Food safety with fresh garlic and herbs

This is the least known side of the category. When fresh garlic or fresh herbs sit in oil, an oxygen-free environment forms. That environment suits Clostridium botulinum: if the product is not acidified or kept refrigerated, toxin can develop.

After poisoning cases in 1989, the United States food authority stopped production of commercial garlic-in-oil mixes that relied on refrigeration alone; such products are now expected to use acidifying agents such as citric or phosphoric acid. For home-prepared garlic and herb oils, the safe routes have been narrowed to two: either the material is acidified beforehand, or the product is kept in the refrigerator and used within a few days. Fresh garlic oil kept at room temperature for months is not considered safe.

⚠ Dried spices — oregano, chilli flakes, bay — do not carry the same microbiological risk. But they do bring moisture and sediment, which shorten the oil's life.

Shelf life and storage

Flavouring accelerates oxidation: plant fragments left in the bottle create sediment, and sediment speeds up deterioration. The rules of light, heat, air and time still hold — the storage rules for olive oil do not change here, only the time frame shortens.

Use an unfiltered oil with plant matter still in it quickly. We have written separately on how to read an olive oil use-by date; with a flavoured oil, the time since opening tells you more than the printed date.

It cannot be sold loose

There is another easily overlooked provision: products within the scope of the communiqué, if offered directly to the final consumer, may not be placed on the market without being prepacked (Article 14/g). Flavoured oil falls within that scope.

An "oregano olive oil" ladled out of a large drum in a shop therefore breaks the rules. This is not a formality: without packaging there is no grade declaration, no ingredient list, no date and no responsible company — the product's trail disappears entirely.

If you plan to make and sell it

Adding flavouring to olive oil and selling it is no different from bottling olive oil: it is a food production activity. Registration or approval of the premises, the accuracy of the label and the safety of the product are the producer's responsibility. For a small-scale producer that has two practical consequences.

First, flavouring adds value but it also adds a labelling burden: the type size of the flavour name, the ingredient list, allergen information, the grade of the base oil. Second, if fresh material is to be used, the safety question has to be settled at the outset — it is not something that can be corrected after the sale.

⚠ The good news is that in the hands of a producer who knows how to tell good olive oil, a flavoured oil is an honest product. The bad news is that the same category can serve as a shelter for defective oil.

What to ask when buying

1. Is the grade of the base oil stated? Extra virgin or riviera? If it is not stated, assume the weakest case.

2. Is the flavour name as large as the product name? If not, the label does not comply.

3. Does the ingredient list show real plants and fruit, or an aroma compound?

4. Is there a harvest year or date?

5. If the product contains fresh garlic and is sold at room temperature with a long shelf life, ask how it was made safe.

6. Price. Flavouring can add value to a good oil or cover up a bad one, and both sit in the same price band.

Points of caution

⚠ Sensory criteria not applying does not mean "these oils are defective". It means "defects are not officially measured". The difference matters.

⚠ Only extra virgin and virgin olive oils may carry a geographical indication (Article 14/b). Whether a flavoured product fits the product definition of any given registration can only be established from that registration's own document.

⚠ The labelling rules described here apply to products sold in Türkiye. For export, the destination country's rules govern.

⚠ The colour the flavouring gives an oil is not a quality indicator. A lemon oil that looks green may be showing the pigment of the flavouring rather than the freshness of the oil; we have written separately on what the colour means.

⚠ This is not a recipe article. Preparing flavoured oil at home is a separate matter precisely because of the food-safety warning above.