PJ Kabos Olive Oil: An Honest Review of a Brand That Publishes Its Numbers
PJ Kabos olive oil is one of the very few brands in the category that will actually tell you a number. Most olive oil marketing runs on adjectives - premium, artisanal, hand-selected - and asks you to take the rest on trust. PJ Kabos publishes a measured total polyphenol result, a free acidity figure, a harvest month and a deliberately conservative best-before date on its own product pages, for each oil in its range. That is unusual enough to be worth examining properly. This is an honest review of what the brand is, what those published numbers genuinely tell you, what they do not, and where we think a different kind of oil answers a different question.
For our own oil, see our cold-pressed organic Marrakech olive oil.
The Short Answer
- PJ Kabos publishes a total polyphenol figure of 699 mg/kg by HPLC for its Family Reserve Organic Robust, along with a free acidity under 0.29% and an October 2025 harvest - a level of published specification almost no olive oil brand matches.
- The oils are single-origin Greek, from Olympia and Koroneiki varieties grown in the Western Peloponnese near Ancient Olympia, hand-harvested and cold-extracted.
- The Family Reserve Organic line is certified by both the USDA and the EU, which is a genuine formal certification and a real strength.
- The range is tiered by intensity and phenolic content, from a delicate everyday oil at 250-300 mg/kg up to a Phenolic Shot bottle published above 900 mg/kg depending on harvest.
- The honest caveat is that these figures are measured during production, not in the bottle you receive - polyphenols degrade with time, heat and light, so a published number is a snapshot at pressing rather than a guarantee at pouring.
- Sidr & Stone does not yet publish a polyphenol figure for its olive oil, and we will say so plainly. Our oil is single-estate Moroccan, rain-fed, organically grown, unfiltered and cold-pressed within hours of harvest from one family-owned grove near Marrakech; a tested figure will follow the first harvest.
Who PJ Kabos Is, and What the Brand Actually Publishes
PJ Kabos is a Greek family olive oil producer whose family settled near Ancient Olympia in the 1890s. Its oils are single-origin extra virgin, pressed from Olympia and Koroneiki olives grown in the semi-mountainous Western Peloponnese, hand-harvested, cold-extracted, and sold across a tiered range organised by taste intensity and phenolic content.
What sets the brand apart is not the origin story - plenty of producers have one - but the specification sheet. On the product page for its Family Reserve Organic Robust, PJ Kabos publishes a total polyphenol content of 699 mg/kg measured by HPLC, hydroxytyrosol and derivatives at 10 mg per 20 g, a free acidity of under 0.29%, an October 2025 harvest date, and a best-before of December 2027 with an explicit note that the brand could have printed a much longer one but chose not to. The ingredients line reads: 100% Greek organic extra virgin olive oil, nothing else.
For context on those figures: the extra virgin grade permits free acidity up to 0.8%, so under 0.29% sits comfortably inside the premium end of the grade. And the EU's registered health claim for olive oil polyphenols (Regulation 432/2012) requires at least 5 mg of hydroxytyrosol and derivatives per 20 g of oil - PJ Kabos publishes double that. Whatever else you make of the brand, it is answering questions most producers simply leave blank.
The PJ Kabos Range, Tier by Tier
The range is laid out by intensity rather than by marketing tier, which is a sensible way to organise olive oil. Every figure below is drawn from PJ Kabos's own published product information; where the brand publishes a range rather than a single result, the range is shown as published.
| Oil | Intensity | Published polyphenols | Origin and variety | Certification | Intended use |
|---|---|---|---|---|---|
| Chef's Selection Classic | Delicate | 250-300 mg/kg | Single-origin Greek; Koroneiki | Not organic-certified | Everyday, all-purpose |
| Family Reserve | Medium | 400-500 mg/kg | Single-origin Greek; Koroneiki | Not organic-certified | Finishing oil |
| Family Reserve Organic | Medium | Published at 515 mg/kg | Single-origin Greek; early harvest | USDA and EU organic | Finishing oil |
| Family Reserve Organic | Robust | 699 mg/kg (HPLC) | Single-origin Greek; Olympia and Koroneiki, October harvest | USDA and EU organic | Finishing and raw use |
| Family Reserve Organic Phenolic Shot | Very pungent | Published above 900 mg/kg, varying by harvest | Single-origin Greek; very early harvest | USDA and EU organic | Raw, in small quantities |
| Sidr & Stone (for contrast) | Not yet classified | Not yet published - first harvest | Single-estate Moroccan; one family grove near Marrakech | Halal certified; organically grown, not certified organic | Finishing and raw use |
The Family Reserve Organic Medium took a Silver at the 2025 NYIOOC World Olive Oil Competition, which is a real, independently judged result rather than a self-awarded badge. PJ Kabos is also candid about the cost of the early harvest that produces those phenolic figures: picking in October, while the fruit is still green, gives a yield of around 10% - ten kilograms of olives for one kilogram of oil. That is an honest disclosure of a genuinely inefficient choice, and it is the reason the numbers are what they are.
What a Polyphenol Figure Does and Does Not Tell You
A published polyphenol number is genuinely useful, and far better than nothing. But it is worth understanding precisely what it is before treating it as a ranking.
It is a snapshot, not a guarantee. PJ Kabos states clearly that its figures are tested during production. That is the honest way to report it, and we credit the transparency - but it also means the number describes the oil at pressing, not the oil in the bottle in your kitchen. Polyphenols degrade with time, heat and light, which is why a harvest date and protective packaging matter as much as the figure itself. The brand's painted glass bottle and its deliberately shortened best-before are both sensible responses to exactly this problem.
Higher is not automatically better on the plate. High-phenolic oils are noticeably bitter and pungent - that peppery catch at the back of the throat is the polyphenols announcing themselves. Some people love it; some find the strongest bottles genuinely difficult to enjoy on food, and reviews of the more intense tiers say so. Intensity is a flavour decision as much as a compositional one, and the right bottle is the one you will actually finish. Our explainer on the polyphenols that actually matter goes into what these compounds are and why they behave this way.
Figures move harvest to harvest. The same oil can test differently year to year depending on rainfall, picking date and grove conditions - which is visible in PJ Kabos's own published range for its top bottle. That is not inconsistency; it is what a genuine agricultural product does.
One last note on framing. PJ Kabos's own listings make a range of health-outcome claims for the oil, as many high-phenolic brands do. Sidr & Stone does not echo these, and we would gently encourage caution about any olive oil marketed with specific health-outcome claims. Olive oil is a food with a substantial research literature behind it - it is not a treatment.
Where PJ Kabos Is Genuinely Ahead of Us
The obvious question, and the fair one, is this: if PJ Kabos publishes a lab-measured polyphenol figure and Sidr & Stone does not, why would anyone choose ours? We are not going to dodge it.
On published verification, PJ Kabos is ahead. It publishes a measured HPLC polyphenol result, a free acidity figure, a hydroxytyrosol figure, a harvest month and a conservative best-before date. Our olive oil is a first harvest and those figures are not yet tested and published. When they are, we will publish them the same way we publish independent per-batch results for our black seed oil - and until then, saying "our oil is high in polyphenols" without a number would be exactly the kind of unfalsifiable claim this site spends its time warning readers about.
PJ Kabos also holds dual USDA and EU organic certification. Sidr & Stone's grove is rain-fed and organically grown - no synthetic fertilisers, pesticides or herbicides - but we do not hold formal organic certification, and we describe it honestly rather than claim a certificate we do not have. Our piece on what the organic label really means sets out the difference between the practice and the paperwork.
Both are real advantages. Neither is diminished by anything we could say about our own oil.
Why Sidr & Stone
What we answer differently is the question a phenolic figure cannot reach: not how much of a compound is in the oil at pressing, but whose grove it came from, when it was picked, and how long it waited. PJ Kabos's oils come from family groves across the Western Peloponnese. Ours comes from one grove, once a year.
- Single-estate - one family-owned grove on the plains outside Marrakech, Morocco, with no blending across origins.
- Rain-fed - no irrigation; the trees take what the season gives them.
- Organically grown - no synthetic fertilisers, pesticides, or herbicides.
- Single harvest - a small, limited batch pressed once a season, picked only when the fruit is genuinely ready, sometimes weeks later than neighbouring farms.
- Cold-pressed within hours of harvest - flavour, aroma, and polyphenols preserved by pressing quickly and without added heat.
- Unfiltered extra virgin - minimally processed, so it may carry a little natural sediment.
- 100% natural - one ingredient, olive oil, and nothing else.
- Dark glass with a gold label - protective packaging against light.
- Halal certified, with 10% of profits given to charity.
- Fulfilment in the UK, EU, and US.
We will not tell you Sidr & Stone is a better olive oil than PJ Kabos - they publish figures we do not yet have, and pretending otherwise would be the exact behaviour this article criticises. What we will say is that our oil is single-estate Moroccan, rain-fed, organically grown, and cold-pressed within hours of harvest, and that the evidence of that care is in the taste, the colour, and the size of the season's small batch. For a fuller walkthrough of judging any bottle on its own terms, see our guide to choosing a quality olive oil and our piece on why single-estate origin and traceability matter.
Frequently Asked Questions
What is PJ Kabos olive oil?
PJ Kabos is a Greek family producer of single-origin extra virgin olive oil from Olympia and Koroneiki olives grown in the Western Peloponnese near Ancient Olympia. Its oils are hand-harvested, cold-extracted, and sold in a range tiered by taste intensity and published polyphenol content.
How high are PJ Kabos polyphenol levels?
The brand publishes 699 mg/kg total polyphenols by HPLC for its Family Reserve Organic Robust, with lower tiers at 250-300 mg/kg and 400-500 mg/kg, and a Phenolic Shot bottle published above 900 mg/kg depending on harvest. All figures are measured during production.
Is PJ Kabos olive oil certified organic?
The Family Reserve Organic line is certified by both the USDA and the EU, which is a genuine dual certification. The Chef's Selection Classic and the non-organic Family Reserve are not organic-certified.
Is a higher polyphenol figure always better?
Not necessarily. High-phenolic oils are markedly bitter and pungent, and the most intense bottles are difficult for some people to enjoy on food. The figures are also measured at pressing rather than in the bottle you receive, and polyphenols fall with time, heat and light.
How does Sidr & Stone compare with PJ Kabos?
PJ Kabos is ahead on published verification - it reports a measured polyphenol result, a free acidity figure and a harvest date, and holds USDA and EU organic certification. Sidr & Stone is a single-estate Moroccan oil from one family grove, rain-fed, organically grown, unfiltered and cold-pressed within hours of harvest, with figures to follow the first harvest.
Where is PJ Kabos olive oil made?
In Greece, in the semi-mountainous Western Peloponnese near Ancient Olympia, north of Kalamata, where the family has grown olives since the 1890s. The oils are single-origin Greek rather than blends across countries.
Can I buy Sidr & Stone olive oil now?
Our single-estate Marrakech olive oil is available to pre-order, with fulfilment in the UK, EU, and US. First harvest, estimated shipping from November 2026. It is a small limited batch, so quantities are finite.
Is olive oil a medicine?
No. Olive oil is a food, not a medicine. It has a long traditional history - including being honoured in the Prophetic Sunnah - and a substantial body of modern research, particularly around polyphenols, cardiovascular health, and the Mediterranean diet pattern. It can be a worthwhile part of a healthy routine, but it does not cure diseases and is not a substitute for medical care. Be cautious of any olive oil marketed with specific disease-cure claims.
Final Thoughts
PJ Kabos does the thing we keep asking olive oil brands to do: it publishes numbers, names the varieties, prints a harvest month, and shortens its own best-before date rather than stretching it. That is a producer behaving as though the reader can handle specifics, and it deserves to be said plainly and without qualification. A brand that hands you a falsifiable claim has already told you more than a shelf full of adjectives.
The useful caution is not about the brand at all. It is about how a number is read. A polyphenol result is a measurement of one moment - the pressing - and everything after it, the bottling, the shipping, the months on your counter, works against that figure. Which is why a harvest date, dark packaging and a bottle you will finish while it is fresh matter every bit as much as the headline result.
We answer a different part of the same question: one named grove, one harvest, unfiltered, and pressed within hours of picking. Our cold-pressed organic Marrakech olive oil is available to pre-order, with fulfilment in the UK, EU, and US. First harvest, estimated shipping from November 2026. When the first harvest is tested, we will publish what it says.
Pre-Order Sidr & Stone Organic Marrakech Olive Oil - Limited First Harvest →
Disclaimer: This article describes PJ Kabos olive oil and the brand's own published product information at the time of writing; specifications, published figures, sourcing, packaging, and brand practices may change between harvests, and readers should check current sources. Comparisons are made in good faith and in fair terms. Olive oil is a food, not a medicine, and is not a substitute for medical treatment of any condition. For any health concern, consult a qualified medical professional.