Which robot vacuums wash their mops in hot water?

Wash water and drying, robot by robot.

The Roborock Saros 20 washes its mops in the hottest water we track, up to 212°F. Three more reach 176°F: the Saros 10R, the Saros 10 and the Dreame X50 Ultra. Next, at 167°F, come the ECOVACS DEEBOT X9 PRO OMNI, the ECOVACS DEEBOT X11 OmniCyclone and the Narwal Freo Z10 Turbo. Roborock lists no hot water for the QV 35A, and eufy rinses the Omni S1 Pro’s pads in ozonated tap water.

A small white robot vacuum mop on a wide wooden floor in a living room with large windows
RobotMop washing waterMop drying
Roborock Saros 20Up to 212°FWarm air, 131°F
Roborock Saros 10Up to 176°F (122, 140 or 176°F)Heated air, 140°F
Roborock Saros 10R176°FWarm air, 131°F
Dreame X50 UltraUp to 176°F (four settings)Hot air, 113°F
ECOVACS DEEBOT X9 PRO OMNIUp to 167°F (75°C)Warm air, 145°F
Narwal Freo Z10 TurboUp to 167°FWarm air, 104°F
ECOVACS DEEBOT X11 OmniCyclone167°F (75°C)Warm air (temperature not published)
MOVA P10 Pro Ultra149°F (MOVA’s page also says 158°F)Hot air, no temperature given
Dreame L40 Ultra149°FWarm air, no temperature given
eufy Omni S2140°FWarm air, 131°F
ECOVACS DEEBOT N30 PRO OMNI140°F (60°C)Warm air, 104°F (40°C)
eufy Omni S1 ProOzonated tap water, no heatingHot air, 122°F
SwitchBot S20No temperature givenWarm air, 122°F (50°C)
Dreame D30 UltraNo temperature given (“high-temp” nozzles)Unheated air
Roborock QV 35ANo hot water listedCold air
SwitchBot K11+No mop listedNo mop listed

Why heat matters

Makers use hot water to loosen grease on the mop pads and warm air to dry them before they start to smell. The temperatures are the highest each maker lists.

Sources