BWT

BWT

BWT is an Austrian water technology company, and its magnesium filter cartridges and AQUAlizer jug are made to give you better water for brewing and help protect your espresso machine from scale. Good water helps both the coffee and the machine.
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BWT Filter Cartridges - 3 Pack
BWT Filter Cartridges - 3 Pack

The innovative BWT Magnesium Mineraliser filter cartridges form the ‘core’ of BWT’s table water filter range and are exceptionally long-lasting. A ...

$37 RRP $37
BWT AQUAlizer Jug with 1 filter cartridge
BWT AQUAlizer Jug with 1 filter cartridge

The table water filter "AQUAlizer Home" impresses with its attractive scandinavian inspired design and optimal ergonomic handling. The elegant tabl...

$43 RRP $43

BWT water filters for coffee machines

BWT stands for Best Water Technology. The company was founded in 1990 and is headquartered in Mondsee, Austria, where it focuses on treating water for homes, hospitality and industry.

Why water matters for espresso

A cup of espresso is mostly water, so what is in your tap water shapes both flavour and machine life. Hard water leaves limescale that clogs boilers and valves, while heavily chlorinated water can taste flat or off. Hardness varies a lot across Australian cities and even between suburbs, so it is worth finding out what comes out of your tap.

Magnesium cartridges

BWT magnesium cartridges filter the water and release magnesium into it, at about 25 to 30 mg per litre, to help reduce limescale in your espresso machine. Each cartridge is rated to filter up to 120 litres, so how long it lasts depends on how much coffee you make.

Getting started with the jug

Soak a new cartridge in tap water for around five minutes before fitting, then discard the first jug. Any black specks are harmless activated carbon that flushes out. Replace the cartridge on schedule, as an exhausted cartridge stops doing its job. These filters improve taste and reduce scale, but they do not make unsafe water safe to drink.

A jug is ideal for machines filled from a water tank. If your machine is plumbed in directly, ask us about inline filtration instead. Check your machine's manual for its water guidance, and call the Jetblack team or visit a showroom for help choosing a filter.

Frequently asked questions

Filtered water helps reduce limescale, which can clog boilers, pipes and valves, and it can improve taste by removing off flavours. Water quality varies across Australia, so it pays to know what your tap delivers.

Each cartridge is rated to filter up to 120 litres of water. How long that takes depends on how much you use, so replace it when it is exhausted or when the indicator on your jug tells you to.

Yes. Soak it in tap water for about five minutes before fitting, then discard the first jug of filtered water. Dark specks in early water are harmless activated carbon that rinses out.

A jug suits machines filled from a tank. If your machine is plumbed directly to the mains, you need an inline filter instead. Ask the team and we will recommend a suitable option.