The Hardtank 20 cold brew machine with 1 or 2 built-in nitro-on-tap dispensing systems. A complete solution for brewing & serving cold brew.

Get a quote

Our cutting-edge commercial cold brew machine. The Hardtank 20 is a perfect solution for high demand situations – it can brew up to 250 litres per day.

Get a quote

Learn about some of the benefits our innovative commercial cold brew coffee machine can have on your business.


Serve up to 1,250 portions of delicious, fresh cold brew per day.


Self-cleaning & sanitation programmes, along with automatic drainage.


Our modular design and use of the highest quality food-grade materials result in a machine that can work flawlessly for decades.

All-in-one option

The built-in dispensing system allows you to seamlessly extract and serve nitro cold brew.

Preparing Cold Brew with Hardtank 20

Preparing Cold Brew with
Hardtank 20

Brewing cold brew with Hardtank 20 is quick & easy. No disposable filters, automation in every step, replicable recipes and automated drain into standard cornelius-type kegs.

Hardtank 20 works both as a production unit for multiple cafe outlets as well as dispensing point for busy locations such as airpots, events, conferences, and more.

How much will the return be for your business?

Coffee Shop Production (net prices)

Baby Hardtank

Coffee Cost per 1 kg
Coffee dose per batch
Batch cost Number of servings per batch
(200 ml)
Coffee cost per serving RRP
Cost per portion Net serving price Profit per serving Food cost % Servings / Day ROI (days)
24.00 0.325 7.80 20 €0.39 €4,200 €0.39 €4.00 €3.61 9.75% 20 58

Hardtank 20

Coffee Cost per 1 kg
Coffee dose per batch
Batch cost Number of servings per batch
(200 ml)
Coffee cost per serving RRP
Cost per portion Net serving price Profit per serving Food cost % Servings / Day ROI (days)
24.00 1.20 28.80 90 €0.32 €13,000 €0.32 €4.00 €3.68 8.00% 90 39
*Daily cost included ground coffee and labor costs

Technical Details


Frequent Asked Questions

Discover answers to common queries with our concise FAQ section, addressing key concerns and providing clarity on various aspects of our products/services.

What beverages can I brew with Hardtank machines?

You can make cold brew coffee, tea, cascara, cocktails, and even infuse spirits with herbs and fruits to create entirely unique beverages. The only limitation is your imagination.

Can I infuse spirits with my Hardtank machine?

You can. All spirits up to 60% ABV can be infused in the Baby Hardtank.
Please note: you should only use spirits with lower sugar levels, as thick/viscous liquids can damage the machine.

Can my Hardtank machine dispense nitro cold brew?

Yes, we offer Hardtank models with built-in tap systems to serve nitro cold brew.

However, the Baby Hardtank requires a separate dispenser.

Do Hardtank machines work without a permanent water supply?

You can fill the Baby Hardtank either manually or by using an external water pump.

Larger Hardtank devices, however, can only be used with a direct filtered water connection.

If necessary, you can use all of our devices with external drainage vessels, provided they’re of the appropriate capacity.

Do Hardtank machines require manual cleaning or disinfection?

All Hardtank devices have automatic cleaning and sanitation modes. These are easy to activate and extend the lifespan of your device.

Do I need disposable filters to use a Hardtank device?

No, Hardtank technology offers exceptional brew quality without the need for any single-use filters.

How much cold brew will I get from each batch?

You can brew up to five litres of cold brew with the Baby Hardtank, and up to 18 litres with the Hardtank 20.

How do Hardtank machines brew so quickly?

Our patented accelerated cold extraction technology is based around recirculation.

Water is constantly circulated and pushed through the extraction basket meaning the coffee, tea, or infusion ingredients are constantly agitated.

Our unique basket design creates an extremely clean brew without the need for additional filtration. This method is proven to deliver a high extraction yield in a comparatively short space of time.

What water filtration system should I use with Hardtank machines?

You can use the same filtration system you would for an espresso machine or batch brewer. 

We recommend preparing your water according to the SCA guidelines.

Does the Baby Hardtank require any “under the counter” equipment?

The Baby Hardtank is a compact machine with a small 30x30cm footprint. It doesn’t require any additional “under the counter” accessories to be used.

All you need is a container ready to store your cold brew once it’s brewed.

How many portions can I brew per day with Hardtank machines?

Assuming a 200ml serving size, you can brew 300 portions per day with the Baby Hardtank and 1250 with the Hardtank 20.

Order our commercial cold brew maker Hardtank 20 with 1 tap.

Downloadable files

Product catalogue

Discover our full range of commercial cold brew coffee equipment.

Hardtank instruction manual

Download our manual here.


Learn all about Hardtank and our mission to help businesses prepare cold brew easier than ever before.

Discover the technology
behind Hardtank here