Pouring bottle-conditioned homebrew without the yeast

The yeast is there by design

Bottle conditioning means the beer carbonates inside the bottle. A small dose of priming sugar goes in at bottling and the yeast still in the beer ferments it. The carbon dioxide dissolves into the beer and the yeast settles on the bottom once it has finished. Many Belgian and English beers are bottle conditioned for the same reason.

The sediment is not a fault. It is a sign the beer carbonated naturally. It is safe to drink. Most people simply prefer a clear glass without the slightly bitter, bready taste a large dose of yeast brings. If you want to reuse that yeast, our guide to harvesting yeast from a bottle-conditioned beer shows how.

Store and chill the bottle upright

The pour starts days before you open the bottle. Store bottle-conditioned beer upright so the yeast forms a tight layer on the base. Bottles kept on their side leave a smear along the glass that breaks up as soon as you tip them.

Then chill the bottle upright for at least a day, ideally two. Cold helps yeast compact and drop out of suspension. It also keeps carbon dioxide dissolved, so the beer foams less when poured. A bottle moved from a warm shelf straight to the glass is the hardest to pour clean. In the Indian summer, bottles straight off a 30 °C shelf will foam wildly and drag yeast with them.

The single smooth pour

1. Open the bottle gently. Do not shake it or knock it on the counter.
2. Hold the glass at about 45 degrees and pour down the side.
3. Keep pouring in one continuous motion. Do not tip the bottle back upright between pours, because each time you do the beer rushes back and stirs up the yeast.
4. Straighten the glass as it fills to build a head of about two fingers.
5. Watch the neck of the bottle. When you see a cloudy wisp of yeast moving towards it, stop.

That usually leaves about 1 cm of beer in the bottle. It feels wasteful the first few times. It is the price of a clear glass.

Big bottles need a plan

A 650 ml bottle is the common size for Indian homebrewers because it matches the standard commercial beer bottle and recycles easily. It is also hard to pour into one glass. Since you cannot stop and restart without stirring the yeast, pour the whole bottle in one go into two glasses or a jug. Line them up before you open the bottle and move from one to the next without lifting the bottle upright.

A clear glass jug works well. Pour the beer into it in one motion, leave the yeast in the bottle and serve from the jug. This also works well if you are sharing a bottle at the table.

When you want the yeast in the glass

Some styles are traditionally served with the yeast. German hefeweizen is the best known: pour most of the bottle into a tall glass, swirl the last few centimetres to lift the sediment then pour it on top. The yeast adds to the cloudy look and soft, bready flavour.

Belgian witbier is often served the same way. For most other styles, leaving the yeast behind gives a cleaner taste. A big dose of yeast also brings a dry, slightly bitter bite that can mask hop and malt character, which is the usual reason to leave the last centimetre alone.

Less yeast starts at bottling

The cleanest pour comes from the thinnest yeast layer. Let the beer finish fermenting and clear before bottling, cold crash for a couple of days if you can and draw from above the sediment. Gelatine fining also thins the bottle layer without stopping carbonation. Careful dry hopping keeps hop particles out of the bottles too. If you are bottling a big batch, our guide to how much yeast to pitch in a 20 litre batch explains why the right pitch also helps the yeast drop cleanly.

Your first step: tonight, move two bottles of your current batch into the fridge, standing upright. Pour one tomorrow and one the day after. Compare how much sediment reaches the glass.