The phrase means the same as "be sceptical". Vaccine contains microchips? Yeah you're going to want to take that with a major grain (pinch in the UK!) of salt

The phrase means the same as "be sceptical". Vaccine contains microchips? Yeah you're going to want to take that with a major grain (pinch in the UK!) of salt / be highly sceptical about it. https://thesaurus.plus/related/pinch_of_salt/scepticism https://thesaurus.plus/related/pinch_of_salt/scepticism