Ascaso Steel DUO PLUS PID

MakerAscaso
BoilerDual thermoblock
Brew boilerNot listed
Steam boilerNot listed
Water tank2 L
Plumb-inNot listed
Voltage (US)120V version
Maker's water filterNot listed

What water does this machine require?

Ascaso hasn't published a limit our check can use for this machine yet, so the check can't give it a result. Whatever the maker does say is quoted below.

Shown, but not used to decide (8)

Will my water work with this machine?

Add your water from a test strip, a report or your city's numbers, and we'll check it against the maker's limits above. It stays in this browser.

Check my water for this machine

The maker's water guidance

What the maker says this machine needs from its water. This is machine care, not drinking-water advice.

From Ascaso's guidance for this model.

  • Total dissolved solids (TDS): 90–150 ppm

    “T.D.S. ppm 90 150”

    Ascaso USA Water Specification (one-page PDF, Ascaso-USA; PDF created 2015-09-16, modified 2020-05-08), Water specification table, PDF page 1. Source (opens in a new tab), saved October 28, 2026.

  • Total hardness: 70–100 ppm

    “Total Hardness ppm 70 100”

    Ascaso USA Water Specification (one-page PDF, Ascaso-USA; PDF created 2015-09-16, modified 2020-05-08), Water specification table, PDF page 1. Source (opens in a new tab), saved October 28, 2026.

    The maker's own guidance conflicts on this point. We show each line and pick none.

  • Iron: 0–0.02 ppm

    “Total Iron ppm 0.0 0.02”

    Ascaso USA Water Specification (one-page PDF, Ascaso-USA; PDF created 2015-09-16, modified 2020-05-08), Water specification table, PDF page 1. Source (opens in a new tab), saved October 28, 2026.

  • Free chlorine: 0–0.05 ppm

    “Free Chlorine ppm 0.0 0.05”

    Ascaso USA Water Specification (one-page PDF, Ascaso-USA; PDF created 2015-09-16, modified 2020-05-08), Water specification table, PDF page 1. Source (opens in a new tab), saved October 28, 2026.

  • Total chlorine: 0–0.1 ppm

    “Total Chlorine ppm 0.0 0.1”

    Ascaso USA Water Specification (one-page PDF, Ascaso-USA; PDF created 2015-09-16, modified 2020-05-08), Water specification table, PDF page 1. Source (opens in a new tab), saved October 28, 2026.

  • pH: 6.5–8

    “pH 6.5 8”

    Ascaso USA Water Specification (one-page PDF, Ascaso-USA; PDF created 2015-09-16, modified 2020-05-08), Water specification table, PDF page 1. Source (opens in a new tab), saved October 28, 2026.

  • Total alkalinity: 40–80 ppm

    “Alkalinity ppm 40 80”

    Ascaso USA Water Specification (one-page PDF, Ascaso-USA; PDF created 2015-09-16, modified 2020-05-08), Water specification table, PDF page 1. Source (opens in a new tab), saved October 28, 2026.

  • Chloride: 0–30 ppm

    “Chloride ppm 0 30”

    Ascaso USA Water Specification (one-page PDF, Ascaso-USA; PDF created 2015-09-16, modified 2020-05-08), Water specification table, PDF page 1. Source (opens in a new tab), saved October 28, 2026.

  • Softened water

    “Ascaso-USA recommends caution when using water softened with sodium and hydrogen based ion-exchange.”

    Ascaso USA Water Specification (one-page PDF, Ascaso-USA; PDF created 2015-09-16, modified 2020-05-08), Below the specification table, PDF page 1. Source (opens in a new tab), saved October 28, 2026.

From Ascaso's guidance for Ascaso Steel range.

  • Very pure water

    “We recommend using water with a low mineral content.”

    Ascaso Steel manual 81070150 V11 (Steel Duo / Uno PID / Duo PID / Duo PID Plus), English section, filling the water tank. Source (opens in a new tab), saved October 22, 2026.

  • Water filter

    “To prevent lime-scale problems, you can also use water treatment filters.”

    Ascaso Steel manual 81070150 V11 (Steel Duo / Uno PID / Duo PID / Duo PID Plus), English section, Descaling. Source (opens in a new tab), saved October 22, 2026.

  • Descaling

    “Coffees/day Descaling >10 monthly 5-10 every 2 months 1-5 every 3 months”

    Ascaso Steel manual 81070150 V11 (Steel Duo / Uno PID / Duo PID / Duo PID Plus), English section, Descaling table. Source (opens in a new tab), saved October 22, 2026.

From Ascaso's guidance for Ascaso equipment sold by Ascaso-USA (warranty terms).

  • Warranty

    “Problems related to water damage, inadequately conditioned water not within manufacturer specifications, and scaling are not covered under warranty. Water treatment systems such as filter systems and cartridges must be maintained to ensure warranty coverage.”

    Ascaso-USA Warranty Terms and Conditions (web page), Warranty exclusions. Source (opens in a new tab), saved October 28, 2026.

Where to buy

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Specs read from the maker's or seller's page.