Honing Global knivesHi Everyone First, many thanks to all of you who answered my last post about sharpening Global knives. Boy, I learnt a lot. I hadn't appreciated the distinction between sharpening...
David P
If it has been boiled for long enough or at high pressure then it will be made sterile.You should look into a hot or cold water cystern to get an idea why it isn't really recommended to drink water that has been in a header tank unless you really have no other choice.
About 5-10 minutes or the addition of a chemical sterilising solution is generally enough. Water authorities go to great lengths to keep various nasties out of tapwater and some of them will tolerate fairly hot water.
Depending on your pipework it may still not be chemically pure to qualify as potable water. One serious problem in older houses is lead piping where hot slightly acidic water may dissolve some lead. Not good to drink! Less of a problem with copper pipes.
Almost certainly, but do you really want to drink water that has been held nice and warm with a selection of dead spiders, flies, bats, rodents and other loft inhabitants in it?
Since the energy required to sterilise the gunky water from your hot tap is way more than that required to boil the purer water from the cold tap why don't you anticipate your future requirement for a coffee and boil potable cold water in the first place?
Regards, Martin Brown
