
Are the sulphites added to beer and wine bad for you?
It might stop you from having that last pint down your local. We did say might…
Asked by: Dan, Stockport
Sulphites are sulphur compounds that occur naturally in the grapes and hops used to make wine and beer. They prevent the growth of the bacteria that make the drink go cloudy and literally turn the alcohol to vinegar. Most wines and beers have extra sulphites added and some people claim that this can cause headaches. But there is more sulphite in a dried apricot than there is in a glass of white wine.
Read more:
Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.
Authors

Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.
Sponsored Deals

Subscription offers you will love!
- Spread the cost and pay just £3.50 per issue when you subscribe to BBC Science Focus Magazine.
- Alternatively, lock in for longer and pay just £37.99 per year, saving 51%!
- Risk - free offer! Cancel at any time when you subscribe via Direct Debit.
- FREE UK delivery.