Why does water skitter across a hotplate in tiny droplets? You’d expect water exposed to a boiling-hot surface to evaporate quickly and disappear in a puff of steam – but this is not the case. The behaviour of when water levitates is due to a phenomenon known as the Leidenfrost effect, after the 18th-century German doctor who first described it. The bottom layer of the droplet that touches the hot surface does indeed evaporate, but it forms a thin cushion of vapour that temporarily protects the rest of the droplet from the extreme heat.
This keeps the rest from becoming vapour and lets the droplet move around the hot plate with ease.
As the video above shows, that’s just the start of the things that the Leidenfrost effect is good for.
As the video above shows, that’s just the start of the things that the Leidenfrost effect is good for.
This keeps the rest from becoming vapour and lets the droplet move around the hot plate with ease.
Why does water skitter across a hotplate in tiny droplets? You’d expect water exposed to a boiling-hot surface to evaporate quickly and disappear in a puff of steam – but this is not the case. The behaviour of when water levitates is due to a phenomenon known as the Leidenfrost effect, after the 18th-century German doctor who first described it. The bottom layer of the droplet that touches the hot surface does indeed evaporate, but it forms a thin cushion of vapour that temporarily protects the rest of the droplet from the extreme heat.
Heating water on a hot plate
FAQ
Is it OK to put water on a hot pan?
What changes would occur if a liquid water is heated on a hot plate?
Can water damage an electric stove?
Can you boil water on a hot plate?
Do hot plates need to be plugged in?
Yes, hot plates do need to be plugged in if you want to cook/boil/fry on them. If you want to keep the food just warm, you can do that without plugging the hot plates in. Hot plates are really a convenient way of cookery even in a place where a full kitchen facility isn’t possible.
What are the harmful effects from drinking hot water?
Hot water is excellent for keeping our metabolism healthy, as well as helping to break down adipose tissue. But be aware that hot water can cause blisters in the mouth, it can also damage the sensitive lining of the digestive tract and esophagus. It can have far-reaching Side Effects on your internal organs because the Hot Water temperature is higher than your body temperature.
How does a hot plate work?
Simply put- hot plates or electric hot plates work by converting electric energy into heat energy that helps in cooking. Electric wire is hidden under the metal coil (usually aluminum) of a hot plate. If you switch the hot plate on, an AC current of about 600-1500W power runs at 8-12 amp throughout the wire.
How to cook on a hot plate?
Make sure to dry the lower bottom of the pan. If you need to spray oil, do it before putting the pan on the plate. Now plug in the hot plate and turn it on moderate mood, select the watt and desired cooking temperature. Don’t keep the hot plate turned on without placing a pan on top of it for long.