Blog

Kollias 2023–2025 olive oil lab results showing polyphenols, acidity, peroxide value, K232, K268 and delta K
October 4, 2026
What do polyphenols, acidity, peroxide value, K232, K268 and ΔK tell you about olive oil quality? We explain the measurements and compare Kollias laboratory results from the 2023, 2024 and 2025 harvests.
2024 Lab Results
December 29, 2024
See the laboratory results from our 2024 harvest, including acidity, peroxide value, ultraviolet absorption measurements, and polyphenol content, and learn what each result reveals about extra virgin olive oil quality.
Olive Oil Science, Part III
March 27, 2023
Peroxides, Waxes, Ultraviolet Absorption & Blending As mentioned in Olive Oil Science Part II, acidity...
Olive Oil Acidity Explained: What It Means, Why It Matters, and Why Lower Is Better
March 12, 2023
What does acidity really mean in extra virgin olive oil? Learn why low acidity is a sign of careful harvesting and processing, why it cannot be judged by taste, and how Kollias has consistently tested well below the extra virgin olive oil limit.
Olive Oil Science, Part I
February 27, 2023
Superior category olive oil obtained directly from olives & solely by mechanical means. Ever look...