I boiled up some organic carrots tonights' for supper and left the water sitting in the pan to cool because I thought I might like to do something with it- but what? I'm assuming it is nutritious and worth using. Can I freeze it to use later? One more thing, as the water has cooled down for a couple hours, it has turned really green. I am guessing that is normal but thought I might see what experience others here have had.