keeshaskitchen.com
Water is “boiling” when it has reached a temperature of 100ºC (212ºF). Simmering water has just started moving. There are a couple of tiny bubbles, but nothing big and dramatic like when water is boiling.
Boiling water is a technique used to make it safe for cooking and drinking. If you don’t boil it long enough (or to the correct temperature), the harmful bacteria won’t be killed and you can still get very ill from the water.
– The temperature of the heat source: the higher the temperature, the quicker the water will start to boil. – The amount: more liquid takes longer to boil.