Monastic Oils and Condiments: The Green Gold of the Abbeys

The advantage of monasteries has never been technological, but organizational. A stable community can afford to prune well, year after year, with the same hand and the same logic; it can wait for the right moment to harvest instead of chasing the market; it can keep the olive grove clean, the dry stone walls in order, the old trees grafted and cared for instead of replaced. An olive grove is an investment that yields returns over decades, and that is precisely the time scale in which a monastic community has always operated.

Then there's the issue of varieties. Where intensive agriculture has standardized on a few productive cultivars, many abbey olive groves preserve ancient plants and local mixtures, often with names that don't appear on any national list. The result is less predictable and more characterful oils: some herbaceous and pungent, some sweet and almond-like, some with that bitter finish that scares novices but is actually the most reliable sign of a healthy fruit harvested at the right time.

The quality of an oil is almost entirely determined at two moments, and neither of them is the pressing itself. The first is the harvest: olives picked when they are veraison, i.e., when their color changes from green to purplish, detached from the plant and not collected from the ground, placed in perforated crates and not in sacks where they would ferment. The second is the interval between harvesting and milling: a few hours are ideal; beyond twenty-four hours, quality begins to decline, and after a few days, no mill can recover the damage.

At the mill, the crucial choice is temperature. The term «cold extracted» indicates that the olive paste did not exceed 27 degrees during malaxation: above that threshold, more oil is extracted, but the aromas and a good part of the polyphenols — precisely the substances that give the oil its peppery kick in the throat and its stability over time — are burned off. Monasteries that mill their own olives tend to prioritize quality over quantity; those that rely on an external mill usually choose a nearby one, to minimize processing time.

Alongside extra virgin olive oil, almost every monastery produces a small family of flavored condiments, direct descendants of the monastic herb garden. The most common are rosemary, sage, chili, garlic, lemon, and truffle oils, obtained by cold infusion of dried herbs or, in the best versions, by co-milling: citrus fruits or herbs are processed together with the olives, so the aroma enters the oil at the very moment it is created. This method is more expensive and less flexible, but it yields integrated rather than superimposed aromas.

Less known but equally interesting are abbey vinegars — wine, apple, sometimes enriched with herbs or honey — and aromatic oil-based pastes, such as herbal pestos and olive creams. The same reading rules apply: few ingredients, declared origin, no surprises on the label. A good lemon oil contains oil and lemons, not «natural lemon flavor»; an herbal vinegar lists the plants used one by one.

Oil has three enemies, and they are always the same: light, heat, and air. Hence the dark bottle or tin, the cool pantry away from the stove, the cap immediately re-sealed. The ideal temperature is around fourteen to eighteen degrees Celsius; refrigeration is not necessary and makes the oil cloudy, while the shelf above the hob — where almost everyone keeps it — is the worst possible place. An opened tin should be consumed within a few months: if not used quickly, it's best to transfer some into a small bottle and keep the rest tightly sealed.

Regarding use, the most persistent misconception is that extra virgin olive oil should not be heated. In reality, it withstands cooking better than many seed oils because it is rich in monounsaturated fats and antioxidants. The point is another: a characterful oil, with its fragile aromas, performs best raw, drizzled at the end over a legume soup, boiled vegetables, or toasted bread. For frying, a simpler extra virgin olive oil is sufficient. And to truly understand what you have at home, it's worth tasting it on its own, a teaspoon at room temperature: the fruitiness on the nose, the bitterness in the middle of the mouth, the pungency in the throat. If all three are present, the bottle is good.