It turns out that pouring a beer incorrectly can lead to beer bloat.

A beer sommelier has revealed to Business Insider the proper way to pour a beer – and it turns out that a head of foam is actually a good thing when enjoying a nice cold one.

A beer bloat is actually the result of pouring a beer with minimal foam.

According to Max, carbon dioxide that has not been released into a glass when pouring a beer, which is what happens when you pour beer into a tilted glass slowly, has a disastrous effect when it settles in your stomach.

This slow-pour means the CO2 has nowhere to go – which leads to bloating when the liquid is disturbed in your stomach and the remaining carbon dioxide is released – especially once you add food to the mixture.

The solution? Pouring a beer down the side of a glass with vigour.

This method of pouring a beer ensures that the CO2 is broken out into the glass – meaning the bloating that occurs when drinking a beer that was not poured properly doesn’t happen.

So before you try to send back a beer for having too much foam, remember that the foam is actually protecting you from feeling full and uncomfortable.