From assistant brewer to head brewer: a five year plan

What a head brewer actually does

Before planning the climb, be clear about the job at the top. A head brewer writes and adjusts recipes, but that is a small part of the week. Most of the job is planning the brew and packaging schedule, managing raw material stock, training and supervising staff, keeping the quality system running and solving problems when beer does not turn out as planned.

Owners hire head brewers they can trust with all of that. Our guide to hiring your first head brewer shows what they look for from the other side of the table. Your five years should build towards those things, rather than towards better beer alone.

Year one: master the floor

Your first year is about doing the basic jobs reliably. Cleaning in place, transfers, cellar checks, kegging and brew day tasks. Learn why each step exists, not only how to do it. Ask why the caustic is at that strength and temperature, why the beer is transferred at that point and why the fermenter is held at that temperature.

Keep your own notebook. Write down every gravity, every problem and every fix you see. By the end of the year you should be able to run a brew day under supervision without being told the next step.

Year two: own a part of the process

Ask to take responsibility for one area: the cellar, yeast management or cleaning schedules. Owning one area teaches you to plan ahead and to notice when something drifts.

Yeast is a good choice. Learn to count cells, check viability, decide when to repitch and when to start fresh. A brewer who can keep a yeast strain healthy through several generations in Indian heat is valuable anywhere. This is also the year to learn to taste properly. Join sensory panels and learn the common faults by name.

Year three: learn why beer goes wrong

By now you will have seen problems: a stuck fermentation, a hazy batch, a beer with diacetyl or a keg that tastes stale. Year three is about learning to trace them back. Use a simple root cause method: what happened, when, what changed and what evidence supports each idea. Our guide to root cause analysis for brewers sets out a method.

This is the year to deepen the science. Mashing biochemistry, yeast metabolism, hop chemistry and oxygen control explain most problems in a brewery. On-the-job learning shows you what happens. Structured study tells you why. A head brewer is expected to know why.

Year four: plan and teach

Start planning. Ask the head brewer to let you draft the brew schedule or raw material orders and then compare your version with theirs. Learn how the brewery calculates cost per litre and yield. Find out what the owner looks at each month.

Train someone. Teaching a new assistant forces you to explain clearly and shows management that you can lead. Write or update the standard procedures for the jobs you know best.

Year five: run the brewery for a week

The test of readiness is simple: can the brewery run normally when the head brewer is away? Ask to cover holidays. Make the decisions, keep the records and handle the problems. Afterwards, review what went well and what did not with the head brewer.

By this point you should be able to design a recipe to a target, troubleshoot a fault, manage a small team, plan production and talk sensibly about cost. If you cannot yet do one of those, you know where to focus.

Things that slow people down

• Staying in one brewery where the head brewer will not share responsibility. Sometimes moving is the only way to grow.
• Learning only one brewery's habits, which makes it hard to adapt elsewhere.
• Ignoring the business side. A head brewer who cannot talk about cost struggles with owners.
• Skipping the science. Experience without theory hits a ceiling when a new problem appears.

Five years is a guide, not a rule. Some people step up in three, some take seven. What matters is that each year leaves you able to do something you could not do before. The assistant brewer guide covers the starting point if you are not there yet.

Common questions

How long does it take to become a head brewer?

Commonly several years, though it varies with the brewery, your learning and the opportunities available. Brewpubs sometimes promote faster because teams are small.

Do I need a brewing qualification to become head brewer?

Not always, but formal study of brewing science helps you solve problems and strengthens your case with owners. Many head brewers combine experience with a recognised qualification.

What is the biggest gap between assistant and head brewer?

Usually planning, people management and understanding cost. The brewing skills are expected. The responsibility is what changes.