Official Lab Reports & Polyphenol Analysis
Looking for real olive oil lab reports — not marketing claims? This page shows the official third-party laboratory test results for each Deliba harvest and explains exactly how to read them. If you’ve ever searched for “high polyphenol olive oil proof” or wondered what K232, K270, Delta K, or peroxide value actually mean, this is your decoder.
Why lab reports matter (and why most brands don’t show them)
“High polyphenol” should not be a promise — it should be a measurement. Independent lab reports reduce fraud risk, prove freshness, and make quality comparable.
If you’re investing in EVOO for health and taste, this is the evidence you should demand.
What makes an olive oil lab report legitimate?
Not all lab reports are equal. A credible extra virgin olive oil test should:
- Be issued by an independent certified laboratory
- Include the specific lot number tested
- Report core freshness markers (peroxide value, K232, K270, Delta K)
- Clearly state total polyphenols in mg/kg
- Show the date of analysis
If a brand does not publish this data publicly, you are relying purely on trust — not evidence.
How to read an olive oil lab report (in 60 seconds)
Focus on the numbers that actually correlate with freshness and quality. Below is the quick decoder. (Simple enough to scan, detailed enough to trust.)
Total Polyphenols (mg/kg)
Higher numbers generally indicate stronger antioxidant content and a more robust sensory profile.
Compare within the same harvest and lab method.
Free Acidity (%)
Lower is better. It’s one of the core quality markers used to classify EVOO.
Peroxide Value
A primary oxidation indicator. Lower suggests better freshness and handling.
K232 / K270 / ΔK
UV absorbance values tied to oxidation and anomalies. Useful for detecting poor handling or defects.
Current harvest lab reports
Each report includes the lot number highlighted by the lab. This is the batch identity — the same lot can be traced across documentation. Use the values below to compare quality markers in a clean, readable format.
Ottobratico (500ml)
Sinopolese (500ml)
Want the full story behind these numbers? Read the 2025 Harvest Report →
Frequently Asked Questions About Olive Oil Lab Reports
What is a good peroxide value for olive oil?
For extra virgin olive oil, peroxide value must be below 20. High-quality fresh oils are often significantly lower. Always read peroxide value together with K232, K270, Delta K, and the harvest date.
What does K270 indicate in olive oil?
K270 is a UV absorbance value associated with secondary oxidation compounds. Elevated values can indicate aging, poor storage, or quality issues.
Do high polyphenols guarantee better olive oil?
Not alone. True quality is a combination of strong polyphenols, low oxidation markers, a verified harvest date, and transparent origin and handling.
Want the full protocol behind these numbers?
The lab reports are the proof. The Transparency Framework is the standard behind them.