Claim: Tomatoes, raspberries, blackberries and lemons produce positive lateral flow test results for Covid-19.
Fact-check: Acidic foods don't test positive for Covid - Full Fact
Verdict: these foods break the lateral flow devices creating a fake "positive" result. this doesn't tell us anything about whether the tests are reliable when used correctly.
Organisation: Full Fact
Author: Tom Norton
Date published: 2021-07-15T00:00:00