Drinking beer fresh
Let's start with the beers that you don't want to keep for a long time. These include pilsners, IPAs (including all the Session, Double, New England... sub-styles) and many blond beers. The rule for this is quite simple: the more the flavour of a beer relies on hops, the fresher you want to drink the beer. The fruity aromas of hops evaporate quickly and old hops start to taste a bit cheesy. Not good!
Storing beer for a short time
However, we also understand that you do not always have the luxury of getting your hands on a freshly filled beer and drinking it the same afternoon. Until then, you will have to store it somewhere. Two things are important: light and temperature. First of all you have to store a beer (especially if it is bottled instead of canned) in a dark place, because sunlight can affect the alpha acids of the hops. In technical terms, this is called "lightstruck", but you can also compare the taste with skunk or cat piss. Blonde beers suffer more from this than dark beers.
When the temperature is too high, the beer will oxidise and start to taste like cardboard. The stability of the temperature is also important. If you put a beer in a barn where the temperature is 5°C at night and 20°C during the day, your beer will be spoiled. So keep your beer cool and dark!
Why is my beer dying?
Once you have poured a beer, it is also important to treat it well. A glass of lager sitting in the sun on a terrace will start to taste bad after just a few minutes. The contact with oxygen does not do your beer any favours either.
Keep the following rules in mind:
- A head of foam protects your beer from oxygen;
- A clean glass gives you a nice head;
- Acid and fat ruin your head (don't put a lemon in your beer);
- Avoid direct sunlight;
- It is better to pour a small glass twice than a large glass once.
What about SUB Kegs?
Good news, all these tips actually apply to beer for The SUB too. Most beers that are available for this purpose are best stored for short periods also.
It is important to keep SUB Kegs in a dark, cool and (stable) storage place. This way you can guarantee you'll enjoy your freshly tapped beer at its very best.