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[Closed] We have one of those boiling water taps at work...

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Filling an aeropress directly for one means burnt coffee, should be 93° for coffee brewing.
I would use a kettle and let it come off the boil or set it to a lower temp and annoy the tea drinkers.


 
Posted : 13/04/2017 8:22 am
 IHN
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[I]No scale as scale occurs as the water cools on a heating element. [/I]

I did not know that. Every day is a school day.


 
Posted : 13/04/2017 8:25 am
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Filling an aeropress directly for one means burnt coffee, should be 93° for coffee brewing.
I would use a kettle and let it come off the boil or set it to a lower temp and annoy the tea drinkers.

Unless you carefully moderate by adding the bit of warm water sitting in the tap/pipe before the boiling water is sucked through and added at a ratio of about 40/60...


 
Posted : 13/04/2017 8:28 am
 Drac
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Filling an aeropress directly for one means burnt coffee, should be 93° for coffee brewing.

I thought it was 80°?


 
Posted : 13/04/2017 8:41 am
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We have a hot water tap at work. It comes out at 90 degrees and blind tasting shows that the tea tastes crap.

So we use the hot water to fill the kettle.

Mostly use a one cup thing at home - that works fine.

No limescale problems because we are in Scotland where our water isn't minging.


 
Posted : 13/04/2017 11:30 am
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As I recall, perfect tea is made with water at lower than 100 degrees, anyway...

Depends on the tea.

No scale as scale occurs as the water cools on a heating element.

Not according to the engineer who services ours.


 
Posted : 13/04/2017 12:29 pm
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We have one of the boiler taps. Almost every time I use it there is someone stood blankly waiting for a completely full kettle to boil so they can fill one cup. 🙄

The "But it tastes different" argument doesn't really stand up either, as we all use the same disgusting instant "coffee" granules that one of the secretaries buys in bulk from the local cash-and-carry.


 
Posted : 13/04/2017 1:23 pm
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No scale as scale occurs as the water cools on a heating element.

Not according to the engineer who services ours.

The solubility of salts in water increases with increasing temperature. As you heat the water in a kettle some of it will evaporate leaving a slightly higher concentration of salts in the water that will probably stay in solution as a result of the higher temperature. As the water cools it will reach a point where some of the salts must come out of solution so they will form on the inside of the kettle. That's one mechanism for the deposition of the salts although there may be others.

Thankfully, like grumpysculler, I live in Scotland too so it's kind of a moot point for us.


 
Posted : 13/04/2017 1:32 pm
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We have a hot water tap at work. It comes out at 90 degrees and blind tasting shows that the tea tastes crap

It would do. Get a proper one, that's just a hot water tap.


 
Posted : 13/04/2017 6:48 pm
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Quooker here too. the one appliance I will take with me when we move.


 
Posted : 13/04/2017 7:38 pm
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They are ok until you use one to wash your hands under at 4am on nights


 
Posted : 13/04/2017 7:54 pm
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They are ok until you use one to wash your hands...

[b]"hand"[/b] presumably? As the other one would be on the switch 😉


 
Posted : 13/04/2017 8:18 pm
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One we had in work could lock on


 
Posted : 13/04/2017 8:23 pm
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Same here actually, but you have to sort of "try" to do it, not just press the button and let go.


 
Posted : 13/04/2017 8:35 pm
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The "But it tastes different" argument doesn't really stand up either, as we all use the same disgusting instant "coffee" granules that one of the secretaries buys in bulk from the local cash-and-carry.

Third world conditions, you'll be needing a new job/union assistance to address the inhuman conditions.


 
Posted : 13/04/2017 9:25 pm
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Anyway, apparently the best way to make tea in in a microwave

http://www.abc.net.au/news/2017-04-11/microwaving-tea-the-best-way-to-brew/8433986


 
Posted : 13/04/2017 9:31 pm
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As the water cools it will reach a point where some of the salts must come out of solution so they will form on the inside of the kettle. That's one mechanism for the deposition of the salts although there may be others.

I'm not disputing the science, rather offering the views of a man who takes them to bits when they're ****ed.


 
Posted : 13/04/2017 10:12 pm
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The solubility of salts in water increases with increasing temperature. As you heat the water in a kettle some of it will evaporate leaving a slightly higher concentration of salts in the water that will probably stay in solution as a result of the higher temperature. As the water cools it will reach a point where some of the salts must come out of solution so they will form on the inside of the kettle. That's one mechanism for the deposition of the salts although there may be others.

Could it not be the more obvious explanation that as water boils it turns to steam leaving the salt behind.

Water in a kettle boils producing steam. Thus it scales up.

Water in the tap sits at 99C not boiling so doesn't scale up.

I dont think your explanation stacks up otherwise youd only get scale in extremely hard water near saturated with salts and everyone else would need to boil off the entire kettle to see any.


 
Posted : 13/04/2017 10:56 pm
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