RObust COFFEE reverse osmosis filter

Product information

Specifically developed for coffee professionals, the Ecosoft RObust COFFEE direct flow reverse osmosis system delivers up to 75 L/h of purified water with a mineral balance that meets Specialty Coffee Association standards. By optimizing water quality, it enhances flavor consistency and extends the service life of coffee equipment in cafés, roasteries, and barista stations.

The tankless, space-saving design fits neatly under counters and is engineered for up to 20 hours of continuous operation daily, ensuring stable performance even in high-demand environments. This makes the RObust COFFEE the perfect solution for coffee shops seeking reliability, premium water quality, and consistent taste in every cup.

Technical information

Parameter
Specification
Flow capacity
70-75 L/h
Water consumption
140–150 L/h
Waste wate
70-75 L/h
Feed water pressure
2-5 bar
Operating water pressure
5-7 bar
Power consumption
0.08 kW

Parameter
Assembled filter
Pre–filters and post–filter
Reverse osmosis membrane
Drain saddle
Installation fitting set
Purified water faucet
Set of tubes
Service wrench

Parameter
Specification
pH
6.5–8.5
Total dissolved solids (TDS)
<150–500 ppm
Hardness
<100–400 ppm CaCO₃
Chlorine
≤0.5 ppm
Iron
≤0.3 ppm
Manganese
≤0.05 ppm
Chemical oxygen demand
≤5 ppm O₂
Total microbial count
≤100 CFU/mL
Coliform index
None

The RObust COFFEE direct flow reverse osmosis filter is designed for cold water purification only.

Pressure monitoring

The front panel features two pressure gauges:

  • Inlet pressure gauge – shows pressure after the pre-filters.
  • Pump pressure gauge – shows pressure after the membrane block.

1 This value only applies to the RObust 1500, RObust 3000MAX, and RObust 4000 models.

Pre-filtration cartridges

Replace pre-filters after 3,000 liters of water filtration or at least every 3 months.

  • If the pressure after the pre-filters drops below 1 bar, the cartridges may be clogged.
  • Delaying replacement may damage or reduce the lifespan of the membrane.

Reverse osmosis membrane

With a significant drop in system performance, replacement of reverse osmosis membranes is required. Replace after filtering 30,000 liters or at least once per year if filtration speed decreases.

Post-filtration cartridge

Replace if taste deteriorates or odor appears, after 5,000 liters or at least every 3 months.

Important: Replace all cartridges together as a set.

Downtime maintenance

If unused for over 2 weeks, disinfect before resuming use (procedure in the user manual).

Compatible replacement solutions

FAQ

  • Yes, you can achieve SCA-compliant water with our products.

    Our direct flow reverse osmosis system, RObust COFFEE, was specifically designed for coffee preparation and delivers water that meets SCA standards.

  • Yes, Ecosoft water treatment systems can help you reach the TDS levels recommended by the SCA.

    The SCA suggests a TDS range of 75–250 ppm, but it’s important to remember that the composition of total dissolved solids plays a major role in how your coffee tastes. With an optimal balance of calcium (Ca) and magnesium (Mg), the RObust COFFEE creates water that enhances the unique aromas and flavors of each coffee bean.

  • While it’s not strictly necessary to use a tank with our water filtration systems, we do recommend it.

    Using a tank helps stabilise TDS levels in the water, which results in more consistent coffee flavour.

  • The exact TDS levels vary by product:

    • RObust COFFEE achieves TDS levels of 60–120 ppm
    • RObust Mini, RObust 1500 and similar models achieve 10–30 ppm

    Some of our systems, like the RObust COFFEE, allow you to adjust the TDS level using flow restrictors. These restrictors are included in your café kit, and instructions can be found inside the box or under Downloads on this page (left sidebar).

  • The required TDS level of the inlet water depends on the filter model.

    All our RObust reverse osmosis filters require a TDS level of 1,000 ppm or less except for RObust Coffee. For this one the required TDS is 150-500 ppm.

Local support

Contact
Need support from a local Expert?

Our partners are happy to support you with their expertise, ensuring a Professional installation and Easy Maintenance.

Just leave a short note and we will connect you with one of our local partners!

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Video
Dimensions, H×W×D:
417 × 362 × 300
mm
Filter weight
15
kg
Image Size
RObust COFFEE direct flow reverse osmosis filter
RObust COFFEE direct flow reverse osmosis filter
Dimensions, H×W×D:
480 × 528 × 338
mm
Filter weight
20
kg
Image Box
RObust COFFEE direct flow reverse osmosis filter
RObust COFFEE direct flow reverse osmosis filter
Pieces on pallet
16
pcs
Weight on pallet
320
kg
Image Palette
RObust COFFEE direct flow reverse osmosis filter
RObust COFFEE direct flow reverse osmosis filter