Category Dossier
An editorial summary of our lab investigations — what we tested, what we found, and what to watch for.
Products Tested
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Lab findings pending
Passed Screening
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No lab-backed pass yet
Contaminants and label claims commonly found in olive oil.
How we test olive oil
ISO-accredited labs. Zero brand influence.
Buying guide
What to look for when shopping.
Building the most comprehensive testing database for olive oil.
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Join the WatchdogsProducts with no adverse findings in our screening
Products currently being tested or awaiting final analysis

Bertolli
Label review complete. Published findings are still pending.

California Olive Ranch
Label review complete. Published findings are still pending.

Lucini
Label review complete. Published findings are still pending.

Terra Delyssa
Label review complete. Published findings are still pending.

La Tourangelle
Label review complete. Published findings are still pending.

Bono
Label review complete. Published findings are still pending.

Primal Kitchen
Label review complete. Published findings are still pending.
Every verdict backed by lab data
Products purchased anonymously from retail stores. No brand samples.
ISO-accredited labs analyze for safety, purity, and label accuracy.
Clear screening result issued: No Findings, Caution, or Findings Flagged.
Continue the dossier
Move from high-level findings into shopping guidance and the testing standards behind every report.