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    The Eureka J15 Max Ultra Is Not the Wet Spill Zapper It Claims to Be

    After a preliminary spin around one of our labs, we were disappointed with this smart device’s not-so-smart reaction to wet spills

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    Eureka J15 Max Ultra base and vacuum on tan floor with grey wall
    The Eureka J15 Max Ultra has a self-emptying, self-cleaning base that should keep the device clean post-cleaning sessions.
    Photo: Jodhaira Rodriguez/Consumer Reports

    Over the last 10 years, many robotic vacuums and mops have come through CR’s labs. With so many models touting their features and benefits, it’s starting to feel like they all offer, to some extent, the same thing. Today, self-emptying bases are the norm, and even newer innovations like the ability to dry mopping pads post-cleaning can be found in most of the newer models.

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    More on Robotic Vacuums and Mops

    The new Eureka J15 Max Ultra combo robotic vacuum and mop has a feature that most others lack: the ability to identify liquid spills and clean them up while preventing the liquid from reaching the device’s dustbin or being spread around the floors. If true, it would be a game-changer, as other combo robotic vacuums and mops warn you should not use them on wet floors, so you have to wipe up spills before sending a robot out to complete a cleaning task.

    Ahead of our in-depth, formal lab tests, where we subject robot vacuums and mops to a rigorous set of tests, we purchased a model to check out its spill-identifying feature. After several days of testing, here’s what we thought of it.

    How We Tested the Spill Identification Feature

    We first spilled water and dark soda on a 1-square-foot area of our lab floor and sent the robot out to clean a 43-square-foot area around the spill. Because the product site states that for the best results, the spills must be “1.5 mm thick”, we switched to a thicker liquid, Maggi Jugo Seasoning Sauce, that wouldn’t spread as quickly as water and soda.

    After ensuring that the puddle of sauce had a depth of more than 1.5 mm, we sent the robotic vacuum and mop out on another cleaning task around the spill. After a brand representative from Eureka said that the spill also should cover an area equal to or larger than 3 cm by 3 cm, we poured more seasoning sauce on the floor, ensuring it was significantly larger than this minimum size.

    The Eureka J15 Max Ultra left our floors stained after several cleaning sessions.

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    Jodhaira Rodriguez

    Jodhaira Rodriguez is a senior multimedia content creator at Consumer Reports. Before joining CR, she tested and wrote about cleaning and organizing products and major appliances like washing machines and dishwashers at Good Housekeeping. In her free time, you’ll find her reading, listening to true crime podcasts, or working on her latest hobby of the month.