Philips 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.
Will my water work with this machine?
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What the maker says this machine needs from its water. This is machine care, not drinking-water advice.
From Philips's guidance for this model.
Hardness setting
“We advise you to adjust the water hardness to the water hardness in your region for optimal performance and a longer lifetime of the machine.”
Philips 2300 Series / 3300 Series user manual, NAM+LATAM edition (PDF title "CO_26_2300 Series_3300 Series_ Manual Philips_NAM+LATAM", 2026-05-26). Source (opens in a new tab), saved October 29, 2026.
Hardness setting
“The default water hardness setting is 4: hard water.”
Philips 2300 Series / 3300 Series user manual, NAM+LATAM edition (PDF title "CO_26_2300 Series_3300 Series_ Manual Philips_NAM+LATAM", 2026-05-26). Source (opens in a new tab), saved October 29, 2026.
Hardness setting
“4 red dots >21 dh 3 red dots >14 dh 2 red dots >7 dh 4 3 2 1 1 red dot or 4 green dots <6 dh”
Philips 2300 Series / 3300 Series user manual, NAM+LATAM edition (PDF title "CO_26_2300 Series_3300 Series_ Manual Philips_NAM+LATAM", 2026-05-26). Source (opens in a new tab), saved October 29, 2026.
Water filter
“You can place the AquaClean water filter in the water tank to preserve the taste of your coffee.”
Philips 2300 Series / 3300 Series user manual, NAM+LATAM edition (PDF title "CO_26_2300 Series_3300 Series_ Manual Philips_NAM+LATAM", 2026-05-26). Source (opens in a new tab), saved October 29, 2026.
Water filter
“It also diminishes the need for descaling by reducing limescale build-up in your machine.”
Philips 2300 Series / 3300 Series user manual, NAM+LATAM edition (PDF title "CO_26_2300 Series_3300 Series_ Manual Philips_NAM+LATAM", 2026-05-26). Source (opens in a new tab), saved October 29, 2026.
Descaler
“Under no circumstances should you use a descaler based on sulfuric acid, hydrochloric acid, sulfamic or acetic acid (vinegar) as this may damage the water circuit in your machine and not dissolve the limescale properly.”
Philips 2300 Series / 3300 Series user manual, NAM+LATAM edition (PDF title "CO_26_2300 Series_3300 Series_ Manual Philips_NAM+LATAM", 2026-05-26). Source (opens in a new tab), saved October 29, 2026.
