Small-batch craft soy sauce brewery

Brew slow-fermented soy sauce in a small rented unit and sell to restaurants, delis and online shoppers.

Startup cost£8k to £30k
Monthly revenue£1.5k to £8k
Time needed25+ h/week
First incomeMonths
  • £8k-30k
  • Full-time
  • Own premises

Estimates for a small start in the UK, not guarantees.

Official data

1,000 UK companies in this field, 34% registered in the last 2 years

SIC 10840 “Manufacture of condiments and seasonings”. Source: Companies House, November 2026.

What it is

A small production space where you ferment soybeans and grain into soy sauce over several months, then press, pasteurise, bottle and label it. You might make a classic style or a distinctive local twist.

Your first three steps

  1. Make small test batches and have trusted chefs taste and give feedback
  2. Speak to your local council's environmental health team and look at small food units to rent
  3. Work out your cost per bottle and wholesale price, then pre-sell to a few local restaurants and delis
Who pays

Independent restaurants and takeaways, delis and farm shops, specialist food distributors, and home cooks buying online.

How it makes money

Wholesale sales of cases to trade customers, plus higher-margin direct sales of bottles online and at food fairs. Gift sets and larger catering sizes can add to the mix.

Skills that help
  • Patience with long fermentation
  • Careful food hygiene and record keeping
  • Cooking and a good palate
  • Selling to chefs and shops
Watch out for
  • Register your food business with your local council before you start making food, and check how far ahead you need to do this
  • You will need a food safety management plan, and good records for fermentation, pasteurising and bottling
  • Soy and wheat are allergens, so check labelling rules with Trading Standards or the Food Standards Agency
  • Public liability and product liability insurance
  • Money is tied up in stock for months before the first sales, so plan your cash flow
  • Check planning and lease terms for smell, noise and food use of the unit

Deep research report · UK

Everything you need to start: small-batch craft soy sauce brewery

Researched with live web search for United Kingdom: real startup prices, the licences and rules, what others charge, a break-even example, how to find your first customers and a 30-day launch plan. With sources.

  • Startup costs with real prices
  • Licences, registration and rules
  • Pricing: what others charge
  • Break-even example
  • Finding your first customers
  • 30-day launch plan
  • Risks and how to reduce them
Ready in about 2 minutes · one-off payment, tax included

See a full sample report

Questions people ask

How much does it cost to start a soy sauce brewery in the UK?

Startup costs are typically estimated at around £8,000 to £30,000, depending on your unit, equipment and stock. Money is tied up in stock for months before the first sales, so plan your cash flow carefully.

How much can a craft soy sauce business earn?

Monthly revenue is typically estimated at around £1,500 to £8,000, depending on how much you produce and whether you sell to restaurants, delis or online. Estimates suggest at least about 25 hours a week of work.

What should I check before making soy sauce to sell?

Check that you register your food business with your local council before you start, and how far ahead to do so. Also check your food safety plan and records, allergen labelling for soy and wheat, insurance, and planning and lease terms.

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