Half of 26 olive oils tested ‘defective’ in Germany

German consumers and sellers of olive oil have been shocked ever since an independent and highly regarded consumer protection organisation, Stiftung Warentest (SW), had a panel of expert tasters scrutinise 26 varieties of “extra virgin” and found half of them wanting. But not so badly as to be dangerous to health, they maintained, though some contained pesticides and other carcinogenic impurities.