Is it safe to heat water using microwave oven?

Question

without anything on it. A filtered water to be heated in a microwave oven.

if it is, how long should heat it so that it will not superheat?

how about water from a faucet?

Answer 1

A mug of water will be hot in 2 minutes, regardless of where it comes from/
Timing will depend upon the wattage of your oven.

Answer 2

Be careful. It can get superheated.
Water boils at 100 degrees Celsius. But without impurities in it, or surfaces in the water for boiling to get started on, the boiling point can actually get much higher. Then, if you add something to the water, like a tea bag or sugar, it can actually release that heat very suddenly by quickly boiling, even explosively.
If you do heat water in the microwave, when it's done, leave it in there for half a minute to cool a bit before you even open the door to remove it. Wait another 30 seconds after you take it out before you put anything in the water.

Answer 3

You can do it either way. I rarely cover anything in the microwave. Did you know there is a super easy way to clean the inside of the microwave? Heat up a bowl of water and let it sit for a minute or two. It makes all that stuck on gooey stuff come right off when you wipe down the inside of the microwave.

Answer 4

As long as it is not distilled/deionized water, it should be just fine. Distilled water or water that is close to 100% pure has the capacity to superheat because water without impurities can't transfer heat or elecricity. So, if something that can transfer heat or eletricity (such as a particle of dust) falls into superheated water, it could explode launching scalding hot water in all directions. However, unless you work in a lab, you shouldn't be able to get such pure water :) Anyway, to make a long story short, it's nothing to worry about.

Answer 5

For best safety in handling, use a Pyrex glass cup - I use a 2-cup Pyrex measuring cup, and based on a 900-watt microwave [check the label inside your 'waver to see how high yours goes] I can boil 1-1/2 c water in 2 minutes. Start with hot water from the kitchen tap [energy-saving tip] and heat up what you need...less than 2 minutes if you don't need it boiling. No need for a lid or anything, just don't fill the container to the top in case it boils over.

Answer 6

Yes - just make sure you have the water in a glass or other microwave safe container. I use my microwave all the time to heat smaller amounts of water that I need. I still use my tea kettle for larger amounts. It doesn't matter whether it's tap water or filtered water or any other type of liquid. It's the container that counts. NO Metal!

Answer 7

yes but I'd keep an eye on it and don't leave it for more than 1 min
mandyr

Answer 8

yea
ive done it a lot
some radiation may get in it but it should be ok

Answer 9

yes. it also depends what type of heating apparatus you use.