Commercial Kombucha Brewing Equipment Guide

Commercial kombucha brewing equipment covers water treatment, a brew kettle, a sugar tank, a heat exchanger, fermentation tanks, starter tanks, pressure-rated brite and carbonation tanks, a filling, capping and labelling line, CIP, a glycol chiller, a cold room and basic lab instruments. For about 3,000 L of live kombucha a week, the typical core is a 1,000 L brew kettle, eight fermenters and two carbonation tanks. Below we go through each step, the material specification and sizing by weekly volume.

How does a commercial kombucha brewing system flow?

The most common mistake is choosing equipment without mapping the process. A typical live-kombucha flow looks like this:

Water treatment → tea brewing → sugar dissolution → cooling → starter addition → primary fermentation → straining → flavour blending → chilling → carbonation → counter-pressure filling → labelling and coding → cold storage → refrigerated distribution

Understanding the culture makes tank and temperature choices easier; start with what a kombucha SCOBY is.

Equipment for each step

Water treatment

Get a full water analysis (microbiology, hardness, chlorine/chloramine, iron, nitrate, conductivity) before buying reverse osmosis. A typical train is a 20–50 µm sediment filter, activated carbon, a softener if needed, a 1–5 µm final filter and UV. Add RO only if the analysis justifies it. For 3,000 L/week, 500–1,000 L/hour of treated water is enough.

Brew kettle and sugar tank

• Brew kettle: 1,000 L nominal, at least 800 L working volume; insulated, jacketed or electric heating, 20–95 °C control, variable-speed sanitary agitator, tea basket or removable filter.
• Sugar dissolution tank: 300–500 L, heated, with agitator and load cells or volume graduation.

Heat exchanger

A 316L plate heat exchanger should cool 800 L of hot tea to inoculation temperature within 60–90 minutes and be cleanable in place. Slow cooling costs time and raises contamination risk.

Kombucha fermentation tanks and starter tanks

• Fermentation tank: 1,000 L nominal (about 800 L working), 316L, a wide cleanable top, breathable cover or sterile-filtered air, sample valve, temperature probe, bottom drain and CIP spray ball. Room or tank temperature is typically held within ±1 °C.
• Starter/SCOBY tanks: 2 × 200–300 L, same hygienic build, clearly labelled and isolated from cleaning chemicals.

Blending, brite and carbonation tanks

2 × 1,500 L nominal (about 1,200 L working), 316L, closed and pressure-rated, with a jacket or glycol coil and a gentle agitator. For carbonation you need a certified pressure vessel rated for at least 2 bar, preferably 3 bar, with a carbonation stone, pressure gauge, safety valve and sample valve. How this compares with bottle conditioning is covered in our kombucha second fermentation guide.

Straining and filtration

A sanitary inline strainer with a removable 100–300 µm screen catches sediment and culture fragments. It is not microbial stabilisation; for a live product, shelf life is protected by the cold chain.

Kombucha bottling: filling, capping, labelling

• Bottle rinser: two-station or rotary.
• Counter-pressure filler: 4–8 heads, a demonstrated output of at least 600 bottles/hour on 330 mL carbonated kombucha, 316L product path, CO₂ pre-purge for low oxygen, CIP capable.
• Capper: crown or ROPP to match the bottle.
• Labeller: at least 800 bottles/hour, plus a lot and best-before coder.
• Also: a check scale, a bottle pressure tester and a dual-stage CO₂ regulator.

CIP and sanitation

A mobile or fixed two-tank CIP skid (250–400 L each): one heated chemical tank and one rinse/recovery tank, 60–80 °C capability, temperature and conductivity measurement. Add a foam cleaner, handwash stations and a lockable chemical store.

Glycol chiller and cold room

• Glycol: a food-grade propylene-glycol chiller, roughly 15–25 kW initially for 3,000 L/week (final figure from the supplier’s heat-load calculation), with a solenoid valve and controller per tank.
• Cold room: 2–4 °C, at least two weeks of production, high-temperature and door alarms, independent data logger.

Lab: pH meter, refractometer and alcohol testing

The basic kit is two pH meters with 0.01 resolution, a digital refractometer with 0.1 °Brix resolution, a titration kit, calibrated thermometers, a dissolved CO₂ tester and an ATP hygiene meter. Alcohol should be measured by an outside lab with a validated method; Cornell’s craft beverage lab, for example, measures kombucha ethanol by distillation-density and GC-FID. A hydrometer or refractometer alone does not prove compliance with limits such as the 0.5% ABV threshold used by the US TTB.

Materials: 316L, Ra 0.8 µm, tri-clamp

Kombucha is acidic, and material shortcuts come back as corrosion and hygiene problems. For every product-contact part:

Criterion	Requirement
Steel	AISI 316L after fermentation; 304 only on the hot sweet-tea side, after review
Internal finish	Ra 0.8 µm maximum
Welds	Continuous, ground and passivated; no pits, cracks or exposed threads
Connections	Tri-clamp or equivalent sanitary fittings
Gaskets	Food-grade EPDM or PTFE rated for acidic beverages and CIP chemicals
Design	Fully drainable, no dead legs, outlet at the lowest point

Keep copper, brass, aluminium, mild steel and non-food-grade plastics away from product. These rules match the EHEDG hygienic design principles, which put cleanability and drainability first, and the documented hygiene programme expected under FDA food CGMPs.

Sizing a kombucha brewing system by weekly volume

The 3,000 L column is based on our own plant specification; the 1,000 L and 6,000 L columns are indicative figures derived with the same logic. Final sizing depends on your recipe and fermentation time.

	1,000 L/week	3,000 L/week	6,000 L/week
330 mL bottles/week	≈ 3,000	≈ 9,000	≈ 18,000
Brew kettle	300–500 L, or 1,000 L ready for growth	1,000 L (≥800 L working)	1,000 L + second kettle or larger brewhouse
Fermentation working volume	≈ 2,000–2,400 L	≈ 6,400 L (8 × 800 L)	≈ 12,800 L (16 × 800 L)
Starter tanks	1 × 100–200 L	2 × 200–300 L	2–3 × 200–300 L
Blending/carbonation	1 × 500–1,000 L	2 × 1,500 L	3–4 × 1,500 L
Filler	Semi-automatic, 2–4 heads	4–8 heads, ≥600 bottles/h	1,000–2,000 bottles/h
Cold room (2 weeks’ stock)	≈ 2,000 L	≈ 6,000 L (30–45 m²)	≈ 12,000 L

Common mistakes when buying kombucha equipment

1. Ordering before the product decision: live or shelf-stable changes the cold room, the filler and whether you need pasteurisation.
2. Trusting catalogue speed: have the filler proven with your bottle, cap and carbonation level.
3. Buying RO without a water test: wasted capital and wastewater.
4. Undersizing fermentation: ignoring the 7–14 day cycle halves real capacity.
5. Uncertified carbonation tanks: a safety and legal risk.
6. Leaving CIP for later: manual cleaning does not scale and cannot be validated.
7. Bottle and can lines on day one: two lines double change parts, stock and maintenance before sales justify it.

When comparing quotes, ask in writing for guaranteed working capacity, material certificates, surface finish, energy and CO₂ consumption, commissioning and training, local service response time and a two-year spare-parts package.

Why buy from a dealer that also brews?

We brew kombucha every day in our Fethiye facility, so we see how tanks, valves, gaskets and filler heads behave with an acidic, carbonated product. That lets us recommend equipment for the real process rather than from a catalogue: where a tank leaves a dead leg, which filler settings cause foaming with live kombucha, where a glycol loop runs short. After installation we also support you with recipes, cultures and operator training. If you are still planning the business side, our guide on how to start a kombucha business covers capacity and legal steps.

Build the right line from day one

The goal is not the fastest machine but a cleanable, scalable line that fits your product and your sales. Explore fermentation tanks, brite tanks and fillers on our equipment page, or see our turnkey production setup service for capacity planning, layout, installation and commissioning.