hi! my oven broke, so, i am cooking on a hot plate. it takes so long for water to boil this way. i want to?

Hot water has less oxygen and evaporates under heat quicker, you could use hot water (boiled) and keep adding it up to a point where pasta is just covered and it will be faster in cooking but cooking time depends how you like your pasta, keep checking it and tasting it. And be careful of too much salt as boiled water can effect taste.

Also boiled water keeps heating up and will bubble to biol faster, biol a kettle till its very hot and not boiled to be safe or just follow the instructions from cold.

The answer is cold water takes time to come up to the same temp. as hot water. After that the timing is the same. Use hot water to knock off a few minutes. After the boil the timing is the same for your pasta. Hot plates do not always give you the same heating capabilities as your stove top. It depends on the burner heating up fast enough. The better and higher heating capacity of the burner will make the most difference. Not the temperature of the water being heated.

As we know, water has minerals and other deposits. Running cold water causes some to stick to the pipes and therefore a lower concentration of them is released.

On the other hand, you run the hot water, it causes the deposits that were hardened by the cold water to loosen up and a higher concentration is released. Aside from being harmful for your health, they can cause your food to have a metallic taste. The higher the concentration you start with, the great the concentration you will consume.

it says cold, not hot, bcuz u wouldnt want the water to evaporate