Grownsy Fast 5-in-1 Review
Pros: Inexpensive, easy to clean, simple to use
Cons: Inefficient, difficult to understand instructions, no auto-shutoff
Compare to Similar Products
Grownsy Fast 5-in-1
|Price||$29 List||$35 List|
$34.99 at Amazon
$14.38 at Amazon
|$24 List||$21 List|
$20.75 at Amazon
|Pros||Inexpensive, easy to clean, simple to use||Simple, safe, keep bottle warm for up to an hour||Inexpensive, travel friendly, easy to use||Easy to use, very few parts to clean, fast warm time||Inexpensive, fast, quick second bottle heating|
|Cons||Inefficient, difficult to understand instructions, no auto-shutoff||Slower||No auto-shutoff, only works for one bottle||No auto-shutoff feature means it is too easy to overheat milk||Too hot, hard to fill vial, gross build up|
|Bottom Line||Affordable warmer with simple controls but below average performance||Excellent value with a simple design that is easy to use||An innovative way for on-the-go families to heat baby's milk||Not recommended because it is missing an auto-shutoff feature to help avoid accidentally overheating the milk||Inexpensive, fast heating warmer with serious health and safety issues|
|Rating Categories||Grownsy Fast 5-in-1||Chicco NaturalFit||Tommee Tippee Trave...||Tommee Tippee Easi-...||Munchkin Speed|
|Warming Efficiency (25%)|
|Ease Of Use (30%)|
|Health Safety (40%)|
|Ease Of Cleaning (5%)|
|Specs||Grownsy Fast 5-in-1||Chicco NaturalFit||Tommee Tippee Trave...||Tommee Tippee Easi-...||Munchkin Speed|
|Heat Technology||Steam/Water Bath||Water Bath||Water Bath||Water Bath||Steam|
|Temp or Timer Based||Have to manually turn off||Temperature||N/A||Have to manually turn off||Timer|
|Auto Shut Off||No||Yes||No||No||Yes|
|Wide Bottle Capacity||yes||Yes||Yes||Yes||Yes|
|Compatible w/ Glass||Yes||Yes||Yes||Yes||Yes|
|Compatible w/ Breast Pump Bags||No||No||Yes||No||No|
|Time to Warm to 99F||12:00 min:sec||9:15 min:sec||5:38 min:sec||5:20 min:sec||3:05 min:sec|
|Wait Time Between Warmings||Not Listed||Allow bottle warmer to cool completely (approx 30 min)||None||Not listed||5 Minutes|
|Dimensions||6"H x 4.75"L x 4.75"W||6"H x 5.5"L x 5.25"W||7.75"H x 3.5"L x 3.5"W||6"H x 4.5"L x 4.5"W||5.5"H x 5"L x 5.5"W|
|Temp. & Time at Auto Shut-Off w/ Warmer Chart Recommended Setting (4oz Refrig. Milk in Glass w/ Silicone Sleeve)||NA||9:00 min:sec 94F||NA||NA||2:35 min:sec 93F|
|Max Temp if Left in Warmer 12 minutes||90F||104F||111F||131F||130F|
Our Analysis and Test Results
Founded in 2015 in Los Angeles, California, Grownsy is a company that has a small selection of baby products designed to simplify the parenting process. They make two other bottle warmers with varying capabilities. The Fast 5-in-1 is the most basic option offered.
Health and Safety
The Grownsy Fast earned an average score for health and safety. It has the option to heat via water bath or steam, depending on the rate you want your milk to warm. Grownsy recommends the water bath function for a slow and steady method, which we also prefer. When using this setting, the milk temperature never rose above 90F; however, it took a full 12 minutes to get there. We think this is much longer than most parents will want to wait, and many may find it tempting to use the fast warm function. If you choose to go this route, you must be very attentive. In our tests, the temperature quickly rose to the ideal 99F. However, if left for just a few minutes too long, the milk soon jumps to well above 104F, at which point breastmilk will start to lose essential nutrients. At the end of our 12 minute test period, the highest recorded temperature was nearing 160F. Much too hot to be safely handled and past the point of nutrition degradation. Without a beep or auto-shutoff alert, you may end up wasting a full bottle of milk.
Ease of Use
With only one dial, you would assume that operation would be simple. However, the symbols are not very explicit or intuitive. We found the instructions to be full of grammatical errors and misspellings, making them very difficult to follow overall. We were scratching our heads trying to figure out which setting to use, how much water to fill, and when to remove the bottle. The max fill line is in Chinese, and there is no timed shutoff and no audible signal to let you know when a bottle is ready. There is only a safety shutoff to prevent the machine from heating when there is no water left.
We put each machine through multiple rounds of heat testing to measure their efficiency and functionality. The Grownsy had a below-average warm time. It took 12 minutes to reach 90F when following the manufacturer's recommended settings. There is no auto-shutoff, but at this rate, parents will likely take the bottle out well before there is a risk of overheating.
Ease of Cleaning
The Fast bottle warmer has 2-3 parts that need cleaning, depending on the warming method you use. The cleaning instructions are minimal, only noting to let the warmer cool and then wipe it with a damp rag after use. The removable parts may be hand-washed, but there is no statement noting whether they are dishwasher safe. You should descale every four weeks, and a chemical descaler comes with the package to get you started. Grownsy notes that you can also descale with a white vinegar solution. However, the instructions are crammed with grammatical errors and confusing sentences, turning a simple process into a complicated experience.
— Abriah Wofford
Honest, objective reviews. Led by a Pediatrician.
BabyGearLab was founded by a Pediatrician Mom with a mission to provide a reliable, independent, source of information to new parents. Our experts have tested thousands of baby and kids products to share key performance, health, and safety findings. We spend tens of thousands of dollars crash testing car seats to inform our ratings. And, we combine our review work with gobs of expert parenting advice. To assure complete independence, we buy all the products we test ourselves. No sponsored content. No ads. Just real, honest, side-by-side testing by people who care.Learn More