They found that adding benzoic acid, a chemical compound, to e-liquids prevents the infection caused by the chemicals. Study first author Dr Rattapol Phandthong said: "Users who vape aerosols ...

The researchers from the University of California (UC), Riverside in the US, also found that the addition of benzoic acid to e-liquids prevents the infection caused by propylene glycol ...

This is because they contain large amounts of benzoic acid, which is a natural preservative. The essential thing to remember when cooking cranberries is that sugar toughens their skins ...