Is steam hotter than boiling water 4
How many degrees is boiling water?
How many degrees does boiling water actually have? Anyone who still remembers the corresponding lesson will answer with 100 degrees Celsius. However, the answer is generally incorrect. We explain how cool and how hot it can get with boiling water and why this is important for tea and coffee.
Little useful from chemistry
When water changes its physical state, the boiling point has been reached. In fact, the water usually boils at a temperature of 100 degrees Celsius when it changes from liquid to gaseous state. If the hotplate is not switched off, the water will evaporate. The electric cooker switches off automatically as soon as the water bubbles for 3 minutes.
At how many degrees does water boil on the mountain?
On the beach, at sea level, the water boils at 100 degrees Celsius (normal pressure 1.013 bar). In the mountains, the air pressure drops because the air becomes increasingly thinner with increasing altitude. In the Himalayan mountains, less energy has to be used to bring water to a boil: on the mountain, water already boils at a lower temperature. The catch: In order to cook food through, the breakfast egg on Mount Everest has to be cooked longer.
The ideal water temperature for delicious coffee
Do not prepare coffee with boiling water
Freshly boiled water has a temperature of around 100 degrees Celsius. However, this is too much for the best coffee aroma, because the coffee is scalding. In order not to burn away the good coffee taste, the water should stand in the kettle with the lid open for at least one minute after boiling, in order to cool to about 80 degrees. Only then should the ground coffee beans be scalded with the hot water. So much for coffee water wisdom for everyone who brews their coffee by hand in the interests of sustainability. Incidentally, the ideal water hardness for tea and coffee is 8 (medium-hard water II). The water shouldn't be any harder.
Cooking tea: how many degrees should the water have?
However, tea is always infused with bubbly boiling water. The boiling water kills germs on the tea leaves. Herbal teas can naturally contain salmonella, which is rare but can happen, according to the Federal Institute for Risk Assessment (BfR). Fruit and herbal teas should therefore only be prepared with boiling water.
Water for tea should boil
The tea should steep for at least three minutes before removing the tea bag or infuser. The brewing time of the tea is also beneficial for germ killing. Heavy fruit teas usually steep longer, with steeping times of around 10 minutes. The tea becomes more stimulating with longer brewing times, because many of its additives need some time to separate from the leaf.
Boiling eggs - how hot does the water have to be?
The ideal temperature for the perfect egg
When it comes to boiling eggs, different rules apply. The egg yolk of a chicken egg coagulates at a temperature of around 65 degrees Celsius, the egg white likes it a little hotter and only solidifies from 82 degrees Celsius. To boil eggs, the water should always be at least 82 degrees. There are also some other tips for boiling eggs:
1. The water boils faster when the heat cannot escape. It is therefore best to use a saucepan with a lid. It is also best to bring lukewarm water to the heat - it boils even faster.
2. Make sure that the eggs are well covered with water. Otherwise the result will be uneven.
3. As soon as the water boils, add the eggs and salt. Opinions differ a little about the salt in the cooking water. Scientifically speaking, the salt water is supposed to raise the boiling point, which means that it takes longer to cook. On the other hand, the salt increases the heat storage capacity of the water. It is also claimed that the salt gives the cracked egg more flavor. In fact, pasta, like noodles, absorbs the salt from the boiling water. The claim that the salt water strengthens the egg when it bursts and thus closes the hole is most likely to be accepted. If salt is added to the boiling water, it swells up briefly. The boiling point is raised and the water briefly stops boiling. TV chefs occasionally recommend adding the salt to the cold water.
4. Boil the eggs for several minutes, then carefully pour off the hot water or remove the boiled eggs with a slotted spoon.
5. Rinse thoroughly with cold water so that the eggs can be peeled well.
Retrofitting the kitchen: Retrofitting the Quooker faucet in the kitchen
Cover picture: Quooker
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