I can’t see bubbling in my airlock, is it fermenting properly?

The purpose of the airlock is to allow CO₂ produced during fermentation to escape without allowing anything into your beer.

Whilst bubbling can be an indication of active fermentation a lack of bubbling does not mean that fermentation is not occurring. To be sure of fermentation we recommend using a hydrometer and measure the gravity then taking another reading again a few days later. If your reading has gone down this is a sign of fermentation.