Brewer’s Mate
For the love of a good brew.
Two friends enjoying golden beers together in a beautiful, cosy English pub

YOUR GRAIN. YOUR BEER. YOUR MATE.

Better beer.
Brewed by you.

Brewing enzymes for small breweries and home brewers. Get more from your grain, fine-tune your process and make beer you’re proud to share.

Just 1.1p per pint
Unlock accessible starch
Shape your fermentability
Brew your own way
Food-grade enzymes
Technical support
Worldwide dispatch

THE BREWER’S COLLECTION

Five brewing mates.
One better brew.

Choose by the job you want to do. Individual enzymes for precise control, a combined blend for convenience, and a three-product kit below.

Brewer's Amylase · Brewer’s Mate 100 mL bottle and product cards
01 · STARCH CONVERSION

Amylase

Help break down accessible starch and reduce mash viscosity. A useful partner for adjuncts and easier filtration.

  • Starch conversion
  • Lower mash viscosity
  • Aid lautering
Starch→Shorter sugars

100 mL bottles shown · select your pack below

£44.99ST0156
How to use it
Brewer's Glucoamylase · Brewer’s Mate 100 mL bottle and product cards
02 · FERMENTABILITY

Glucoamylase

Convert dextrins into fermentable sugars. Fine-tune attenuation when a drier beer is part of your plan.

  • More fermentable sugars
  • Drier beer styles
  • Adjunct-friendly
Dextrins→Glucose

100 mL bottles shown · select your pack below

£78.99ST0162
How to use it
Brewer's Protease · Brewer’s Mate 100 mL bottle and product cards
03 · PROTEIN MANAGEMENT

Protease

Break down proteins into smaller fragments. Explore protein management while keeping beer body and foam in mind.

  • Protein management
  • Release amino acids
  • Explore clarity
Proteins→Peptides

100 mL bottles shown · select your pack below

£78.99ST0170
How to use it
Brewer's Mate · Brewer’s Mate 100 mL bottle and product cards
04 · THE COMBINED BLEND

Brewer’s Mate

A blended combination of alpha-amylase, beta-amylase, glucoamylase and protease for a combined mash treatment.

  • Four enzyme activities
  • One convenient blend
  • Adjunct-compatible
Starch + protein→Sugars + peptides

100 mL bottles shown · select your pack below

£78.99ST0166
How to use it
Brewer’s ALDC · Brewer’s Mate 100 mL bottle and product cards
05 · DIACETYL CONTROL

ALDC

Support diacetyl control with alpha-acetolactate decarboxylase. A targeted enzyme for fermentation planning.

  • Diacetyl control
  • Targeted enzyme
  • 100 mL pack available
α-Acetolactate→Acetoin

100 mL bottles shown · select your pack below

£54.99ST0153
How to use it

UK catalogue prices checked 11 October 2026. Photos show our 100 mL bottles. Choose your required pack size; final prices and availability are confirmed at checkout.

Brewer's Bunch (includes Amylase, Glucoamylase & Protease) · Brewer’s Mate 100 mL bottle and product cards

THREE ENZYMES. YOUR OWN BREW.

Meet the
Brewer’s Bunch.

Three separate enzymes in one collection: Amylase, Glucoamylase and Protease. Control each stage independently.

  • Amylase for starch conversion
  • Glucoamylase for fermentability
  • Protease for protein management

100 mL bottles shown · select your pack below

£64.99ST0159

Available in the existing 100 mL, 1 L, 10 L and 25 L kit options. Check the supplied instructions for each component.

Explore the kit ↗

A LITTLE SCIENCE. A LOT OF CRAFT.

Make the process
part of the pleasure.

Your recipe stays yours. Enzymes are another useful tool for getting the result you want from the ingredients you love.

01

Choose your ingredients

Build around your malt, adjuncts and target beer style. Choose the enzyme activity your mash needs.

02

Measure and mash

Measure in millilitres. Add each enzyme at the conditions supplied for that specific product.

03

Follow your fermentation

Keep records of gravity, temperature and sensory changes. Compare your brew with a control.

04

Pour something lovely

Judge the finished beer: flavour, clarity, body and foam. Keep the process that suits your recipe.

FIND YOUR BREWING MATE

What’s your
next good brew?

Start with the change you want to make, then explore the enzyme and its instructions.

Start with Brewer’s Amylase for accessible starch conversion and lower mash viscosity.

Meet Amylase ↗

A GREAT BREW. CLEARER NUMBERS.

Your enzyme cost,
by the pint.

Plan a batch and see exactly what the enzymes contribute to each cup, pint or bottle. Adjust your finished-beer yield, dose and pack size.

Small-brew defaults follow the listed 10 mL per 25 L rate. The larger-brew listing uses ten times this rate; select the basis that applies to your process.

Choose your enzymes, doses & packs

Small-brew listing: 10 mL / 25 L. Larger-brew listing: 1 L / 250 L. Source ↗

Small-brew listing: 10 mL / 25 L. Larger-brew listing: 1 L / 250 L. Source ↗

Individual product listing: 20 mL / 25 L. Source ↗

Individual product listing: 20 mL / 25 L. Source ↗

Product listing: 10 mL / 25 L. Source ↗

Volumes are an editable planning example. The dose is based on mash/brew volume; cost per serving is based on finished beer. Use the supplied instructions and your process-specific dose.

ENZYME COST PER SERVING
1.11p

Per 568 mL pint, based on 23 L finished beer.

Your whole batch£0.45
Enzymes per litre1.96p
Enzymes per 250 mL cup0.49p
Enzymes per 568 mL pint1.11p
Approximate servings40.5

Your measured additions

  • Brewer’s AmylaseST0156 · 1 L pack10.00 mL · £0.45

Enzyme cost only: apportioned from the selected UK pack prices. Malt, hops, yeast, labour, energy, equipment, delivery and any additional checkout taxes are excluded. Buying the full packs costs more than the amount used in one batch.

BREW A LITTLE KNOW-HOW

Good questions.
Useful answers.

Understand the enzyme before choosing the bottle. A few practical starting points for your next brew.

01 · STARCH TO SUGARS

Amylase or glucoamylase?

Different jobs, different outcomes. Understand starch conversion and fermentability before building your process.

Read the guide ↗

02 · YOUR COST PER PINT

What does a little enzyme cost?

Go from bottle price to actual batch cost, with a transparent 25 L home-brew example.

See the working ↗

03 · HOME TO SMALL BREWERY

Choose your pack with care.

Match pack size to your actual dose, brewing schedule and storage guidance.

Find your starting point ↗

A FEW GOOD QUESTIONS

Pull up a stool.

A little clarity before your next brew.

Are these for home brewers or small breweries?

Both. The existing Brewer’s range has 1 L and larger packs for regular brewing. Brewer’s Bunch and ALDC also have 100 mL options. Choose according to dose, brewing frequency and the product’s supplied storage guidance.

Do I need every enzyme?

No. Start with the task: Amylase for accessible starch conversion, Glucoamylase for fermentability, Protease for protein management, or ALDC for diacetyl control. Brewer’s Mate combines four enzyme activities. The kit lets you work with three separately.

Does the calculator include the cost of beer?

It calculates the enzyme contribution only. It does not include grain, hops, yeast, packaging, labour or energy. It also distinguishes the amount used in one batch from the upfront cost of buying a full pack.

Why do the small and larger brew doses differ?

The existing Amylase and Glucoamylase listings give 10 mL per 25 L for small brews, and 1 L per 250 L for larger brews. Those are 0.4 and 4 mL per litre. The calculator makes both visible. Confirm the dose for your particular mash and process with technical support.

Can Protease make my beer gluten-free?

Protease can act on proteins, but enzyme use alone does not establish gluten-free status. Any such claim needs appropriate analysis of the finished beer. Protein treatment can also affect body and foam, so assess your actual recipe.

Where do I pay, and who supplies the products?

Scientific and Technical Limited supplies the Brewer’s range. Your basket opens in its Shopify checkout, where availability, shipping, taxes and final prices are confirmed.

HERE’S TO YOUR NEXT GOOD BREW.

Bring the grain.
We’ll bring the know-how.

A useful mate for your mash, your process and your next great pint.

Find your brewing mate ↗

Your brewing shelf.

Product subtotal£0.00

UK catalogue prices checked 11 October 2026. Availability, final prices, taxes and delivery are confirmed by S&T at checkout.

Continue to secure checkout ↗

Your basket opens on scientificandtechnical.com, the supplier of the Brewer’s range.