Summary: These are oils in UK
Brands to AVOID (low scores — 1–7/10)
These had major transparency red flags (clear plastic, no harvest date, vague “EU oils” blends, no region/PDO info):

Tesco Extra Virgin → 1/10 (worst — clear plastic + vague blend)
Sainsbury’s standard → 4/10
Morrisons The Best Unfiltered → 5/10
Tesco Finest → 5/10
Waitrose Duchy Organic Spanish → 5/10
Asda Extra Special Greek Koroneiki → 6/10
Waitrose No.1 Valle Trapanese PDO → 7/10 (still not great)

Brands that PASSED / Recommended (high scores — 9–10/10)

Aldi Specially Selected Terra di Bari PDO → 10/10 (dark glass, harvest date, specific Puglia origin, PDO, great value ~£10/liter)
Belazu Early Harvest Arbequina → 10/10 (dark glass, single-estate Catalonia, very traceable)
Lidl Primadonna → 9/10 (dark glass, regional Italian options, strong value)
Sainsbury’s Taste the Difference Toscano PGI → 9/10 (dark glass, Tuscany PGI, QR code)
Terra Delyssa → 9/10 (dark glass, Tunisian single origin with QR traceability to groves)

General advice that applies anywhere (including the US)
Look for dark glass or tin, a harvest date within the last 18–24 months, specific origin (e.g., “Puglia, Italy” or “Tuscany PGI”), PDO/PGI labels, and QR/batch traceability. Avoid clear plastic bottles and vague “blend of EU oils” labels. Price isn’t everything — some supermarket own-brands beat expensive ones on transparency.

I have bought the “Primadonna” oil in the nearest Lidls today. Had never paid my attention at that oil before. Thank you so much for your information, for your work to check so many products for our health sake.

THIS IS DISCUSTING THAT SUPPERMARKETS  GET AWAY  WITH  THIS

Excellent information. Only confirms my taste buds, were correct, choosing the best olive oil. Good old buds...;-P

I'll be getting this when the Aldi opens up over the road from me, thanks for sharing.

Thank you for this crucial information ❤

Thank you 🙏

This video could be half the length if they cut out the repetition.

Very welcome....thank you.

I use SP 360 it’s polyphenols count on their latest harvest is 1700+

I can't believe that you never looked at any of the real Kalamata Olive Oils....... I would never consider anything other than the PDO Kalamata Cold Pressed, Organic, Extra Virgin Olive Oil, and would ALWAYS expect it to be no more than 12 months old preferably. Once you've had this Olive Oil, you'd never go to anything else! And just about ALL these types of Kalamata PDO olive oils are single source, single family! You can have the very latest and freshest delivered directly from the family olive groves in Kalamata to anywhere in Europe!
So why no Kalamata bottles here?

Labelling comparison gives an indication but still does tell consumers whether those with good labels are of a good quality

Try Brindisi!

Thanks you are doing something I am doing changing the world in small steps

Our ministers are on supermarket payroll in Caymen islands, that's why they allow fraudulent behaviour by food sellers.

Thanks for this video because I bought this one  -   ATLAS OLIVE OILS Organic Cold Press Extra Virgin Olive Oil with Polyphenol Rich, Newly Harvested Unprocessed from One Single Family Farm Cold Press Ext. Virgin 25.5 Fl Oz (Pack of 1) 750 mls for £20.99 and it is fabulous it is mild followed by a peppery kick worth every penny and it states it is perfect for  a KETO diet very dark glass bottle and it is a single estate one

Thank you I support you

How is Sainsbury's Odessya?

I have been buying the Aldi
one for years.

What about supermarket own organic brands?