Nothing cools you better than a cold beverage on a hot summer day.

With our Hardtank cold brew machines, the limit to what you can create is your imagination.


Depending on a coffee’s roast degree cold brew production time may vary.

Origin is another factor that influences the flavour. You may also play around with grind size to yield different extraction results.

Whether you are a fan of citrus, juicy Kenyan, or sweet Brazilian, Hardtank cold brew gives you a wide range of possibilities.

40 - 60 minutes


We have good news for cascara lovers; it tastes amazing. With a nitrogen cylinder and 45 minutes to spare, nitro cold brew cascara will cover you even on an unbearably baking hot day.

30 - 50 minutes


Due to the presence of the tannins, it is not recommended to brew tea with hot water for longer than five minutes to avoid unwanted bitterness and astringency.

When it comes to producing tea in Hardtank, we suggest to prepare it for up to 10 minutes.

4 - 10 minutes

Not just coffee

Cold brew is a beverage steeped in cold water. The low temperature of water affects the flavor of the extracted drink. Cold Brew is refreshing, invigorating, and lower in bitterness compared with hot brewing.

But it’s just the beginning!

Downloadable files

Inspirational cocktails

Get your Hardtank adventure started with our cocktail ideas.


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