Is the Roborock F25 Ultra worth it for deep cleaning?

Yes, the F25 Ultra is highly effective for deep cleaning, particularly for stubborn stains. In tests, both hot water and steam modes significantly reduced the effort and time needed to remove dried coffee and ketchup, outperforming cleaning with room-temperature water by a large margin. The heat helps dissolve grime and grease more effectively.

Does the F25 Ultra truly sanitize floors by killing bacteria and viruses?

While the steam mode reaches around 80°C at the brush roll, which can kill some bacteria and viruses, the reviewer could not confirm 99.9% sterilization without specific exposure time tests. A temperature of 100°C is typically needed for instant kill. However, it will provide a higher level of sanitization compared to cleaning with cold water.

What are the main downsides of the Roborock F25 Ultra?

One minor drawback is the 60-second waiting period for steam to be ready, during which you must hold the machine, and the lack of a countdown for the 30-second hot water warm-up. Additionally, the filter in the dirty water tank has slightly larger slits, which can allow some solid debris to pass through.

How well does the Roborock F25 Ultra handle hair?

The F25 Ultra provides a 100% tangle-free experience, similar to its predecessor. Even when put through a stress test with long strands of hair, none were found tangled on the brush roll, thanks to Roborock's jaw scrapers designed for anti-hair tangle.

Rawan's Reviews's Roborock F25 Ultra Review

Q: How long does it take for the steam and hot water modes to be ready?

The steam cleaning mode requires about 60 seconds to preheat before it's ready to use, during which you need to hold the cleaning head. The hot water cleaning mode takes approximately 30 seconds for the water to reach its optimal temperature, though there is no on-screen countdown timer for this.

Roborock · Smart Home · Reviewed by Rawan's Reviews · Published 2025-08-21

Rating 5/5Source quality 100/100Evidence 15Claims 10Q&A 6Pros 9Cons 4Smart Home

Based on a review by Rawan's Reviews (accessed 2025-08-21).

This page converts Rawan's Reviews's review of the Roborock Roborock F25 Ultra into structured evidence — timestamped claims, pros & cons, and buyer questions. It is not the original review and does not replace watching or reading the full source.

Product Evidence hub pending. This is currently the only analysed source for this product. A full evidence hub becomes available once a second qualifying source is processed.

Sponsorship & disclosure

Brand relationship disclosed as: gifted

Source verdict

The reviewer absolutely loves the Roborock F25 Ultra, considering it an improvement over the F25 Ace due to the addition of steam and hot water cleaning. Despite a few minor annoyances like steam pre-heating time and filter size, the reviewer concludes that the machine delivers really well, highlighting the significant potential of hot water and steam cleaning for better cleaning and disinfecting without harsh chemicals.

About this source

This review provides a hands-on look at the pre-production Roborock F25 Ultra wet and dry vacuum, which features new steam and hot water cleaning capabilities. The reviewer tests the effectiveness of these cleaning modes on various stains, assesses the device's self-cleaning and drying functions, and provides insights into its overall performance and user experience.

Review notes

The Roborock F25 Ultra is a significant upgrade in wet and dry vacuum technology, earning a strong recommendation for its innovative steam and hot water cleaning capabilities. During testing, the steam cleaning mode efficiently removed stubborn, dried-out ketchup stains in about 3.5 passes, a notable improvement over the 10 passes required with room-temperature water. Its Slitec wheels with twist assist also provide exceptional maneuverability, making it easy to navigate around obstacles. If you frequently encounter tough, sticky messes or desire enhanced sanitization for your floors, this cleaner is a compelling choice. However, if you prioritize instant operation, the 60-second steam warm-up time might be a minor inconvenience.

What the reviewer liked

Steam and hot water cleaning modes are highly effective at dissolving grime and grease.
Significantly faster at cleaning stubborn dried-out stains compared to room-temperature water.
Potential for sanitizing floors by killing bacteria and viruses without harsh chemicals.
Excellent maneuverability with motorized Slitec wheels and twist assist.
180° lay-flat capability allows cleaning under low furniture.
Features hot water self-cleaning and hot air drying (with fast and silent modes).
Integrated blue LED light helps illuminate dark areas and spot dirt.
Achieves 100% tangle-free performance for hair on the brush roll.
Dirty water tank includes a convenient handle for easier removal.

What the reviewer criticised

Steam mode requires a 60-second warm-up time, during which the machine must be held.
No countdown timer for the 30-second hot water mode warm-up.
Slits in the dirty water tank filter are slightly too large, allowing some solid debris to pass through.
Steam temperature (80°C at brush roll) may not ensure instant 99.9% bacteria/virus kill without specific exposure time.

Structured claims

The Roborock F25 Ultra offers four different cleaning modes: automatic, sponge (suction only), hot water cleaning, and steam cleaning.

specification_claimstrong

The hot water cleaning mode delivers water at approximately 50-55°C at the brush roll, which is an effective temperature for dissolving grease and grime without risking damage to floors.

measurement_claimstrong

The steam mode reaches about 80°C at the nozzles, which is slightly lower than the advertised 99°C outlet temperature, likely due to heat loss to cold air or surface measurement.

measurement_claimstrong

While steam helps sanitize floors, the reviewer cannot confirm if 80°C is effective for sterilization (killing 99.9% of bacteria and viruses) as 100°C is typically required for instant kill, and effectiveness depends on exposure time.

reviewer_claimmoderate

The F25 Ultra is highly effective at cleaning fresh stains like ketchup, milk, and cereal, removing them very easily and quickly.

reviewer_claimstrong

Both hot water and steam cleaning modes are significantly faster and more effective at removing stubborn, dried-out stains like ketchup compared to cleaning with room temperature water.

comparison_claimstrong

While the dirty water tank includes a filter for solid debris, its slits are slightly too large, allowing some solids to fall through.

reviewer_claimmoderate

The fast drying mode (5 minutes) operates at around 58 dB, which is somewhat loud, while the slow drying mode (30 minutes) is much quieter at approximately 43 dB.

measurement_claimstrong

The F25 Ultra offers a 100% tangle-free experience, with no hair getting tangled on the brush roll even during a stress test with long hair.

reviewer_claimstrong

The steam mode takes 60 seconds to be ready, requiring the user to hold the machine, and the hot water mode takes 30 seconds to reach temperature with no timer indicator.

reviewer_claimstrong

Evidence items

Hot Water Cleaning Temperature (Tested)

measurement_testpositivet=7:58–8:28

In hot water mode, the thermal camera read about 50 to 55°C at the brush roll. This temperature is within the recommended range for cleaning floors effectively without risking damage.