What Is Cold-Pressed Olive Oil?

Cold-pressed olive oil is an extra virgin olive oil obtained purely by mechanical means, where the temperature during crushing, malaxation (kneading), and separation never exceeds 27°C (80.6°F) at any stage of production.

Because high heat is not used during extraction, the high level of naturally occurring polyphenols (antioxidants), vitamin E, essential volatile oils, and fresh field aromas inherent to the olive remain entirely intact.

Cold-pressed olive oil production is a temperature-controlled extraction process that preserves the oil's quality and nutrition:

Harvesting & Transport: Freshly picked olives are quickly moved to the facility in ventilated crates to prevent fermentation.
Washing & Sorting: Leaves and debris are removed before the olives are thoroughly washed with clean water.
Crushing: Whole olives, including their pits, are ground into a rich paste using mechanical mills.
Malaxation (Kneading ≤ 27°C): The paste is gently kneaded strictly below 27°C (80.6°F) to merge oil droplets without destroying delicate antioxidants and flavors.
Centrifugal Separation: High-speed centrifuges separate the pure oil from solid pomace and water.
Storage & Bottling: The oil rests in light- and oxygen-protected stainless steel tanks before being packaged in dark glass bottles.

Brined Black Olives is a traditional method of curing black olives by slowly removing their bitterness using salt water (brine) and letting them naturally ferment. It is one of the most natural and long-lasting ways to make olives at home.

Ingredients & Measurements

Black Olives: 1 kg (Firm, undamaged, mature black olives)
Coarse Rock Salt: 1 tea glass (Fine table salt softens olives; rock salt is mandatory)
Water: Approx. 1–1.5 liters (Boiled and cooled water, or drinking water)
Citric Acid or Lemon Slices: 1 tsp citric acid (or half a lemon)
Olive Oil: 1–2 tbsp (To seal the top)
Jar: 1–2 liter glass jar

Step-by-Step Instructions

1. Preparation & Sorting
Stem the harvested black olives. Discard any bruised, rotten, or overly soft olives, selecting only firm and intact ones.

2. Slitting or Cracking (Optional)
To help the brine penetrate faster and speed up bitterness removal, lightly slit each olive 2–3 times with a knife or gently crack them on a hard surface. (Leaving them whole extends the curing time, but gives the olives a longer shelf life).

3. Debittering (Removing Bitterness)

Place the olives into the jar and cover completely with drinking water.
Close the lid. For 10–15 days, drain and replace the water daily (or every 2 days).
Repeat until the bitterness fades to your taste. Test an olive periodically to check the flavor.

4. Preparing the Brine
Once the olives are debittered, prepare the brine for long-term preservation:

Dissolve 1 tea glass of rock salt and 1 tsp of citric acid into 1 liter of boiled and cooled water. (To check salt concentration, use the traditional method: float a washed raw egg in the brine. If it floats with a section the size of an olive above water, the ratio is correct).

5. Packing & Storage

Fully drain the debittered olives and transfer them into the glass jar.
Pour the prepared brine solution over the olives until fully submerged.
Add 1–2 tbsp of olive oil on top to create an airtight seal and prevent mold.
Seal the jar tightly and store in a cool, dark place.

This distinction highlights how harvesting, processing, and quality standards define premium olive oil:

1. Early Harvest (Harvest Time)
Olives are gathered between September and November while still green.

Yield is lower per olive, but antioxidant (polyphenol) levels and aromatic compounds peak.
Features a vibrant green-grass aroma with a distinctly bitter, peppery finish in the throat.

2. Cold Pressed (Processing Method)
The olive paste temperature is strictly capped at 27°C (80.6°F) throughout extraction.

Preserves heat-sensitive nutrients, delicate aromas, and natural vitamins that high temperatures destroy.
Delivers rich, unaltered fruity flavors directly from the fresh fruit.

3. Extra Virgin (Quality & Acidity Grade)
Extracted purely through mechanical methods without chemicals or heat refining, maintaining a free acidity level of 0.8% or lower.

Represents the highest international standard, offering balanced flavor, no organoleptic defects, and maximum purity.

Category	Main Focus	Defining Standard	Flavor Profile	Antioxidant Level
Early Harvest	Timing	Autumn yield (Green olives)	Fresh grass, pronounced pepperiness	Highest
Cold Pressed	Technique	Temperature ≤ 27°C	Fresh, rich fruitiness	Very High
Extra Virgin	Quality Grade	Acidity ≤ 0.8%	Flawless, balanced, smooth	High

The key differences between crushed and cracked green olives lie in their preparation methods, maturation periods, textures, and shelf life. Although produced from the same type of green olives, they cater to distinct palate preferences.

1. Crushed Green Olives (Kırma Zeytin)

Prepared by gently tapping the olives with a stone or wooden mallet to crack the flesh without damaging the pit.

Rapid Maturation: Because the flesh is cracked open over a wide area, it releases its bitterness quickly, becoming ready for consumption in 7–10 days.
Flavor & Texture: Fully absorbs the brine and acidity, resulting in a softer, fleshier texture.
Best Use: Best consumed quickly. Ideal for olive salads dressed with olive oil, lemon, and spices.

2. Cracked Green Olives (Çizik Zeytin)

Made by making 2 to 3 smooth length-wise incisions on the olives with a knife.

Long Shelf Life Maturation: Since the knife slits provide a narrower surface area, the debittering process is slower, taking 15–20 days to mature.
Flavor & Texture: Retains its structural integrity, delivering a firm and crisp bite. It can be stored in brine for months without softening.
Best Use: Preferred as a classic breakfast green olive, enjoyed plain or lightly drizzled with olive oil and lemon.

Feature	Cracked Green Olives (Kırma)	Slit Green Olives (Çizik)
Preparation Method	Cracked open by pressing/striking	Cut with knife slits
Curing Time	Fast (7–10 Days)	Medium/Slow (15–20 Days)
Texture & Mouthfeel	Fleshy and softer	Firm and crunchy
Shelf Life	Short (Consume quickly)	Long (Stores for months)
Best Serving Style	Seasoned olive salads (with spices & oil)	Classic breakfast table olive