Grownsy Fast 5-in-1 Review
Pros: Inexpensive, easy to clean, simple to use
Cons: Inefficient, difficult to understand instructions, no auto-shutoff
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|Pros||Inexpensive, easy to clean, simple to use||Simple to operate, versatile, consistent temperatures||Water bath, user-friendly, versatile, timer in minutes||Simple, safe, keep bottle warm for up to an hour||Inexpensive, travel friendly, easy to use|
|Cons||Inefficient, difficult to understand instructions, no auto-shutoff||Average heat time, frequent maintenece||Expensive, no end of cycle beep, multiple cleaning steps||Slower||No auto-shutoff, only works for one bottle|
|Bottom Line||Simply designed bottle warmer with sub par efficiency and confusing instructions||Reliable and effective warmer that will accommodate almost any bottle||Simple interface with consistent warming and works with most bottles||Consistent heat and easy to use make this warmer a good buy||This versatile and convenient warmer is great for families who are always on the move|
|Rating Categories||Grownsy Fast 5-in-1||Tommee Tippee...||Kiinde Kozii||Chicco NaturalFit||Tommee Tippee...|
|Warming Efficiency (25%)|
|Ease Of Use (30%)|
|Health Safety (40%)|
|Ease Of Cleaning (5%)|
|Specs||Grownsy Fast 5-in-1||Tommee Tippee...||Kiinde Kozii||Chicco NaturalFit||Tommee Tippee...|
|Heat Technology||Steam/Water Bath||Water Bath||Water Bath||Water Bath||Water Bath|
|Temp or Timer Based||Have to manually turn off||Timer||Timer||Temperature||N/A|
|Auto Shut Off||No||Yes||Yes||Yes||No|
|Wide Bottle Capacity||yes||Yes||Yes||Yes||Yes|
|Compatible w/ Glass||Yes||Yes||Yes||Yes||Yes|
|Compatible w/ Breast Pump Bags||No||Yes||Yes||No||Yes|
|Warming Wait Time||12:00 min:sec||5:00 min:sec||5:30 min:sec||9:15 min:sec||5:30 min:sec|
|Wait Time Between Warmings||Not Listed||Not Listed||If Kozii feels warm around the base (from recent use), decrease warming time by 30 seconds.||Allow bottle warmer to cool completely (approx 30 min)||None|
|Dimensions||6"H x 4.75"L x 4.75"W||7.5"H x 6"L x 5"W||6"H x 6.4"L x 4.7"W||6"H x 5.5"L x 5.25"W||7.75"H x 3.5"L x 3.5"W|
|Temp. & Time at Auto Shut-Off w/ Warmer Chart Recommended Setting (4oz Refrig. Milk in Glass w/ Silicone Sleeve)||NA||5:00 min:sec 86F||5:30 min:sec 79F||9:00 min:sec 94F||NA|
|Max Temp if Left in Warmer 12 minutes||90F||109F||94F||104F||111F|
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