The Thermostat uses a bimetallic strip to break the circuit when the desired temperature is reached. This is a strip made up of two metals that have different thermal expansion characteristics, such as steel and copper. If one metal expands faster than the other, the strip will warp -- and the motion caused by this warping can do useful work (like breaking the circuit...) In this case, a cam exerts some force on the bimetallic strip using a spring force to keep the contact in place for varying amounts of temperature. For "high" settings, the bimetallic strip must warp a lot more to break the contact than for "low" settings.

One feature of the Classic Round Waffle Maker which we loved was the browning dial with seven settings, allowing you to choose the exact crispness you prefer. Another was a “ready-to-eat” alert – when waffles are ready, the machine beeps to let you know. That’s a lot better than interfering with the cooking process by continually opening the lid to check on progress.


That said, quite a few users say that this waffle maker isn't as sturdily built as previous versions of the same model, and that if you don't get the top heating plate aligned just right, it can fall off -- an injury hazard if the plate is hot. The top of the G48TD also gets very hot. Some use pliers to bend the metal clips that hold the heating plates in place, which helps them line up better -- or you can just use an oven mitt to protect your hands.
No, this waffle maker cannot compete with the All-Clad, but at about a quarter of the price, the Krups sure gives it a respectable run for its money. The build isn't as solid—there's some plastic, no 18/10 stainless here—but like the All-Clad, it is generously proportioned to yield four tall, deeply grooved Belgian-style waffles per batch and, with an adjustable dial for cook control and an audible chime that signals doneness, it doesn't skimp on extra features. It does best the All-Clad in one regard: its non-stick plates not only release cooked waffles easily, they pop out for easy cleaning and are dishwasher safe. That's a game changer right there.
With a little flick of the wrist, The Hamilton Beach® Flip Belgian Waffle Maker lets you effortlessly bake, make and flip perfect waffles just like a gourmet restaurant chef. Best of all, the adjustable browning control makes waffles golden brown and crispy on the outside and meltingly tender on the inside. To cook waffles like the best restaurants do, simply preheat the waffle maker until the READY light comes on. Then, pour in waffle batter and flip to lock in place. Waffles are done in 5-8 minutes, depending on the setting and the recipe. Using an oven mitt, flip the waffle maker back and open the cover to a perfect waffle.
It almost goes without saying, but you’ll benefit from a waffle iron with a nonstick surface. Nonstick surfaces significantly reduce the amount of hassle involved with taking waffles out of the waffle iron, helping ensure that waffles come out unbroken. A nonstick surface also reduces the amount of oil or butter that is required to cook the waffle, making them a little healthier than they would otherwise be.
Featuring a six-point dial for customizing waffle doneness, this waffle maker quickly and consistently turned out two perfect waffles at a time, each with a crisp, evenly browned exterior and a custardy interior. With indicator lights on both sides of the waffle maker and a loud audible alert, it was easy to tell when each waffle was done. Weighing nearly 10 pounds and measuring more than 20 inches tall with the lid up, this model was by far the biggest and heaviest of those we tested—but that extra bulk ensured stability and durability. Two minor flaws: the lack of a removable drip tray and the shortness of the handle, on which hot condensation tended to accumulate.

A dial on the Krups GQ502D controls browning, on a scale of 1 (lightest) to 5 (darkest). You can easily control how cooked your waffles are without ever producing an inedible one: The lightest waffles are barely brown but still cooked through, while the darkest are crisp and brown but never burnt. Compare that with the Chef’sChoice 830B, which in our tests got so hot that it started to burn waffles on a medium setting, or even with our runner-up, the Chef’sChoice 840B, which can burn its thinner waffles on the highest setting. The dial on the Krups machine also allows you to turn the waffle maker off without unplugging it, a feature that very few waffle makers have. Such a feature isn’t totally necessary, but it is nice to have if you want to keep the machine on your counter ready to use; it’s also one that a lot of Amazon customers seem to desire, judging from reviews of other waffle makers across the board.
That said, quite a few users say that this waffle maker isn't as sturdily built as previous versions of the same model, and that if you don't get the top heating plate aligned just right, it can fall off -- an injury hazard if the plate is hot. The top of the G48TD also gets very hot. Some use pliers to bend the metal clips that hold the heating plates in place, which helps them line up better -- or you can just use an oven mitt to protect your hands.
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