Building a brewing portfolio from your homebrew recipes

Why a portfolio beats a list of beers

When a homebrewer applies for an assistant brewer job, the CV usually says something like "brewed 40 batches, all grain, IPAs and stouts". That tells the head brewer almost nothing. Forty batches brewed carelessly are worth less than ten brewed with good records.

What a head brewer wants to know is whether you will follow a process, measure things, write them down and learn from what went wrong. A portfolio shows that in a way a sentence cannot. It also gives the interview something concrete to talk about, which helps if you are nervous. Our guide to the move from homebrewer to pro brewer covers the wider path.

What to include for each recipe

Pick your best five to eight beers, not all of them. For each one, put together a single page with:

• The recipe: grain bill in kg and percentages, hops with alpha acid, weight and timing, yeast strain and pitch rate, water treatment.
• The targets and the actuals: original gravity, final gravity, ABV, bitterness and colour, with what you planned next to what you got.
• The process: mash temperature and time, boil length, fermentation temperature profile and conditioning time.
• Tasting notes: your own and anyone else's, written in plain language.
• What you would change: one or two specific adjustments for the next batch.

Show your working on the ABV. If your OG was 1.052 and FG was 1.012, the difference of 0.040 multiplied by 131.25 gives 5.25%. A head brewer will check. It reassures them when the maths is right.

Show the batches that went wrong

This feels counterintuitive, but include one or two failures. A stuck fermentation, a beer that came out too thin, a batch that tasted of butter. Write down what happened, what you think caused it and what you changed.

Brewing is mostly problem solving. A homebrewer who can say "my first lager had diacetyl because I crashed it cold before the diacetyl rest, so I now hold it at 16 °C for two days and check before cooling" is showing exactly the habit a brewery needs. If you need help naming faults, our guide to beer off flavours lists the common ones.

Add evidence from outside your kitchen

Your own tasting notes are a start. Independent feedback is stronger.

• Competition scoresheets, even mediocre ones, show you can take criticism. See entering a homebrew competition.
• Notes from a homebrew club tasting.
• A short note from a brewer who tasted your beer, if they are happy to give one.
• Photos of your setup, your hydrometer readings and your cleaning routine.

Photos matter more than people think. A clean, organised setup tells a head brewer that you will not leave a mess in their cellar.

How to present it

Keep it short. A PDF of eight to twelve pages or a simple shared folder is enough. Start with a one page summary: how long you have brewed, what equipment you use, the styles you know well and what you are trying to learn next.

Bring a printed copy to the interview as well as sending it ahead. Some head brewers in busy brewpubs will not open attachments but will happily flip through pages on the bar. Do not bring beer unless asked. If you are asked, bring it cold and in good condition, because a warm, flat bottle after a hot Indian commute undoes everything the portfolio said.

What a portfolio cannot do

Be honest with yourself about the gaps. Homebrewing teaches recipe design and fermentation care. It does not usually teach cleaning in place on a commercial kit, working with a heat exchanger, managing yeast across generations or handling a 25 kg malt sack safely. Head brewers know this.

Show that you know it too. Add a line about what you expect to learn on a commercial system and how you are preparing for it. Structured learning on the commercial process helps here, because it fills exactly the part of the job your kitchen cannot.

Finally, keep updating it. A portfolio that shows steady improvement over a year is far more convincing than a polished file made the night before an interview.