Start with the harvest, not the marketing

Most bottles lead with words that feel reassuring and mean very little on their own. “Natural,” “cold pressed,” even “extra virgin” describe a minimum standard, not the character of what is inside. The information that actually predicts how an oil tastes, and how good it is for you, is usually printed small, or not at all.

The single most useful thing to look for is a harvest date. Olive oil does not improve with age; it fades. An oil pressed from this season's fruit and stored away from light is worth more than one with a distant best-before date and no harvest date at all.

The two numbers that matter

If the producer prints them, free acidity and total polyphenols tell you most of the story. Free acidity below 0.8% is the legal ceiling for extra virgin; a genuinely early, carefully milled oil sits far lower. Polyphenols — the antioxidants responsible for the peppery finish — fade as fruit ripens, so a high figure is a sign the olives were picked green and pressed fast.

Origin, in one place

Look for a single named origin — a region, ideally a grove — rather than “product of EU” or a list of countries. Blends assembled from several sources are not necessarily bad, but they cannot tell you when or how the fruit was picked, and the best lots are rarely sold that way.

A reputable producer can back their figures with a certificate of analysis tied to the lot number on the tin. That traceability — one grove, one pressing, one tested lot — is the difference between a label that reassures and a label that proves.

The paragraph

Polyphenols are a family of natural antioxidants the olive tree makes to protect its fruit. In the oil they show up as a green grip on the tongue and a peppery catch at the back of the throat — oleocanthal, oleacein, oleuropein and hydroxytyrosol are the ones most often measured. They are at their highest in green, unripe fruit and fall steadily as the olive darkens, and again with every day the oil spends warm, bright or open. An oil with a strong, clean peppery finish is therefore an oil that was picked early, milled quickly and kept well. That is the whole idea.

Why we chase them

Everything else about our method follows from that paragraph. We pick while the fruit is still green, because that is when the polyphenols peak. We accept the lower yield that comes with it. We press below 27°C, because heat strips them out. We put the oil in tin, because light does the same. None of this is a style choice; it is simply what keeps the compounds in the oil long enough to reach your kitchen.

What the numbers mean

Total polyphenols are reported in milligrams per kilogram. Many supermarket oils fall well under 200 mg/kg by the time they are sold; the European health claim for olive oil polyphenols requires at least 5 mg of hydroxytyrosol and its derivatives per 20 g of oil, which works out at 250 mg/kg. Early-harvest oils from healthy groves can sit comfortably above that. Every Makaron lot is tested, and the figure travels with the lot number on the tin.

How to taste for them

Warm a small glass of oil in your hands, cover it, then uncover and smell: grass, artichoke, tomato leaf. Take a little into your mouth with air, as you would a wine. A green, grassy grip arrives first, on the tongue. Then the peppery catch — and, with a young, high-phenol oil, a cough. Nobody has ever been sorry about the cough.

The enemies are light, air and heat

Olive oil is a fresh product. It does not spoil the way milk does, but it declines — the aromas flatten, the peppery finish softens, and eventually it turns flat and waxy. Three things drive that decline: light, which breaks down the chlorophyll and the polyphenols; oxygen, which oxidises the fats; and heat, which accelerates both. A clear glass bottle on a shelf under shop lighting is the worst place an oil can be.

What tin does

A tin is opaque. Not tinted, not dark — opaque. No light reaches the oil from the moment it is filled until the moment you pour it. The walls are thin, so the oil does not hold heat the way a thick bottle does, and the tin itself is light enough that a 2.5 litre size is practical to ship and to lift. It will not break in the post, and it does not need the bubble wrap that glass does.

Keeping it at home

Store the tin in a cupboard, away from the hob and the oven. Close it after each use. An opened tin will keep its character for several months; a sealed one, kept cool, considerably longer. If you buy the larger size, decant a week or two's worth into a smaller dark bottle for the table and leave the rest sealed — which is exactly why our gift set pairs a 2.5 litre tin with a refillable bottle.

One last thing: do not refrigerate it. The cold makes the oil cloud and thicken, and the condensation that forms each time it is taken out does more harm than the cupboard ever would.

Week one — the lower slopes

The harvest opened in the first week of October, on the lower terraces nearest the gulf where the fruit ripens earliest. The olives were still firmly green, a few just beginning to turn at the shoulder, which is exactly the point we want them. Nets down in the morning, fruit stripped by hand and with small rakes, crates loaded by early afternoon and at the mill before the heat of the day had gone out of them. Nothing stays overnight.

Week two — first oil

The first lot came off the press mid-month. Leaves blown off, fruit washed, crushed, and the paste worked gently and cold — never above 27°C — before the oil is separated. The first taste is always the same shock: electric green, artichoke and cut grass on the nose, a green grip on the tongue, and a peppery catch that makes everyone in the mill cough. A sample from the lot went to the laboratory the same day.

Week three — up the hill

Picking moved to the higher ground beneath the Kozak mountains, where the nights are cooler and the fruit ripens a week or two behind. The oil from these trees is leaner and more peppery than the first lot; blended within the same pressing, the two balance each other. The early lots settled in the steel tanks, in the dark, with the fine sediment dropping out of their own accord.

Week four — into tin

With the laboratory results back and within our own limits, the first lot was racked off its sediment and the filling line started. Each tin carries the lot number of the pressing it came from, so the certificate you can read online is the certificate for the oil in your hand. The 2026 oil is available now; the higher-ground lots will follow as they settle.

Not what it sounds like

The word misleads almost everyone. Free acidity has nothing to do with how sour or sharp an oil tastes; you cannot detect it on the palate at all. It is a laboratory measure of free fatty acids — mostly oleic acid — expressed as a percentage. Fatty acids are “free” when they have broken loose from the triglyceride molecules that make up the oil, and that happens when the fruit is damaged.

What raises it

Olives that have been bruised in picking, attacked by fly, left in heaps to warm and ferment, or simply kept waiting for days before milling all arrive at the press with more free fatty acids. So do olives picked from the ground. Acidity is, in effect, a record of how the fruit was treated between the tree and the mill. That is why it is used as the first line of the extra virgin standard: an oil must be below 0.8% to carry the name at all.

What it cannot tell you

A low figure proves the fruit was sound and handled quickly; it does not, on its own, tell you the oil is aromatic, or that it is rich in polyphenols, or that it has been stored well since. For that there are other tests — peroxide value and ultraviolet absorbance for oxidation, total polyphenols for the antioxidants, and a trained tasting panel for defects and fruitiness. We run the laboratory tests on every lot and keep the results with the lot number, because one good number is a claim; the full sheet is a record.

Two oils from the same trees

Pick an Edremit olive in early October, while it is green and hard, and press it that day, and you get one oil. Leave the same fruit on the tree until December, when it is black, soft and heavy with oil, and you get another. Same grove, same variety, same mill. Tasted side by side the difference is startling, and it explains most of what people argue about when they argue about olive oil.

The early oil

Bright green in the glass. On the nose: cut grass, artichoke, tomato leaf, green almond. In the mouth it is green and brisk first, then builds to a peppery catch at the throat that lingers. The texture is lean, almost brisk. This is an oil for finishing — over grilled fish, a plate of white beans, bread, tomatoes, soup — where that intensity is the point. The polyphenol content is at its peak, and so is the price of making it: twelve to fifteen kilos of green fruit for a single litre.

The late oil

Pale gold, sometimes with a straw tint. Softer and rounder on the nose — ripe fruit, a little banana, nuts. The green edge has largely gone and the peppery finish is a murmur. It is pleasant, forgiving and good for cooking in volume, and the trees give two or three times as much of it. Its polyphenols are a fraction of the early oil's, and it will not keep as long.

Why we pick early

There is nothing wrong with a ripe oil. But the character of this grove — the sea air, the hill behind it, the age of the trees — shows in the green oil and is smoothed away in the late one. We take the lower yield and press only early-harvest fruit, because that is the oil that tastes of where it came from.

One variety, one coast

Along the shore of the Edremit Gulf — Ayvalık, Burhaniye, Edremit — nearly every grove is planted with the same olive. It goes by the name of the bay, or of the town, and it has been grown here for as long as anyone has kept records. The fruit is small to medium, oval, and unusually rich in oil for its size, which is why the region has always been an oil coast rather than a table-olive one.

What it tastes like

Pressed early, Edremit gives an oil that is fruity and green rather than fierce: artichoke and fresh-cut grass, a clean green edge, a peppery finish that is present without being aggressive, and a notable sweetness underneath. It is an oil of balance. Where some varieties shout, this one carries — it makes a plain plate of beans taste finished and does not overwhelm a piece of fish.

Why here

The grove sits on the slopes between the Kozak mountains and the sea. The mountains hold off the worst of the northern winter; the gulf keeps the summers from scorching; the breeze off the water dries the leaves and keeps the fruit healthy; and the thin, stony, lime-rich soil makes the trees work for their water, which concentrates the fruit. Our youngest trees are at least thirty years old. Many are far older, and old trees, deep-rooted and slow, give the most consistent fruit of all.

The farm has pressed Edremit olives on this ground since 1864. No fruit comes in from other sources. What is in the tin is this variety, this slope, this season — which is as much as any olive oil can honestly claim.