Labelling and dating homebrew bottles so nothing gets lost

Why it matters

After a few batches, unlabelled bottles become a guessing game. You cannot tell a two week old IPA from a three month old one. You cannot match the bottle you loved to the recipe that made it. You give a friend a bottle and forget which beer it was.

A simple labelling system fixes all of this. It does not need to look professional. It needs to be quick, clear and linked to your brew log.

The minimum each bottle needs

Every bottle should tell you two things at a glance:

• What it is. A batch number or a short name.
• When it was bottled. The date matters because beer changes with age. Hoppy beers are best fresh. Strong dark beers can improve for months.

Everything else, from recipe to gravity readings, lives in your brew log, matched by batch number. Our guide to keeping a brew log shows what to record.

Cap codes: fast and free

The quickest system is writing on the crown cap with a permanent marker. A batch number and a date, such as "12 / 14-10", fits easily. It takes seconds per bottle and costs nothing.

Coloured caps work as a second layer. Use one colour per style or per month. A shelf of gold and black caps is easier to sort than a shelf of identical silver ones.

Write on the cap after it is crimped, not before. A capper can smudge fresh marker. Let the ink dry for a minute before stacking bottles in a crate, or the codes rub off on each other.

Cap codes have one big advantage: the cap goes in the bin when the bottle is opened, so you never have to scrub old labels off.

Labels when you want them

For gifts or beers you want to show off, a proper label is worth the effort. A few options that come off easily:

• Masking tape with handwritten details. Ugly but practical.
• Printed paper labels stuck with milk. Brush a little milk on the back of a plain paper label and press it on. It holds when dry and soaks off in warm water. Not ideal in an ice bucket.
• Removable sticker labels from a stationery shop, printed at home.
• Neck tags tied with string, which never touch the glass.

Avoid permanent adhesive labels unless you enjoy soaking bottles. If you design labels for a style or a gift, include the beer name, batch number, bottling date and ABV. Our guide to beer label design covers what makes a label work, though for homebrew clarity matters more than beauty.

Batch numbers that make sense

Number your batches in order from the first one you ever brewed. Batch 1, batch 2 and so on. It sounds too simple, but it works. A sequential number is short enough to write on a cap and points straight to a page in your log.

Keep the number on everything connected with that batch: the fermenter tag, the yeast jar if you harvest, the sample jar of wort and the crate the bottles live in. When something goes wrong, you can line up every item from that brew and see what they had in common.

Some brewers add a style letter, such as 12P for pale ale or 13S for stout. Keep whatever system you choose consistent. The worst system is one you change every few batches.

Sorting and storing by date

Once bottles are labelled, store them so the oldest are easiest to reach. Keep each batch together in a crate or box, labelled on the outside with the batch number, style and bottling date.

In Indian conditions, where room temperature is often above 25 °C, keep finished beer as cool as you can. Hoppy beers belong in the fridge once carbonated. Our guide to storing beer at home explains how heat affects different styles. A dated cap tells you quickly when a hoppy beer is past its best.

Use your labels to learn

The real value of a good labelling system comes later. When you open a bottle and it tastes better or worse than expected, you can trace it back to a specific batch, recipe and set of notes. Over time, you start to see patterns: which yeast, which mash temperature or which fermentation schedule gave you the beers you liked best.

Labels and logs turn guesswork into a record. Knowing what to do with that record (and which changes will improve your next batch) is where structured brewing knowledge comes in.

Common questions

What is the easiest way to label homebrew bottles?

Write a batch number and bottling date on the crown cap with a permanent marker. It is quick, free and the cap is thrown away when opened.

How do I make labels that come off easily?

Stick plain paper labels on with a little milk. They hold when dry and soak off in warm water.

Should I put the ABV on homebrew labels?

It helps, especially when sharing. Calculate it from your gravity readings and add it to labels for gifts.