If you like to cook food on your own, and you actually like spending time in the kitchen, then over some period of time, you will learn all the cooking tricks that you need to know. Do not be afraid to make mistakes because only then you will truly learn something. If you think that you should add more spice, then add it, but who knows maybe that was not the right thing to do. Soon, you will find out! And next time, you will know exactly how much spice it goes in that specific meal.
You should know how long to boil water because eventually, every meal starts with boiling water and other ingredients. If you want to make food that is just al dente, then you will know the importance of water. For instance, if you want to get that juicy, delicious pork meat, then you will have to loosen it up first in the boiling water. Remember to always use cold water and boil it, rather than using warm water. When you cook something in the water, if the water evaporates, then you should once again add cold water, because warm water is not good when preparing food like this.
To answer the question, how long to boil water, well, it definitely depends on many factors, such as the material of pot, heating methods, and many others. When water boils, then it is sterilized, and you can use it however you want. You can even boil river water, and cook meals in that water.