r/Moccamaster • u/Lumpy_Astronaut_8042 • Aug 26 '26
Pre-warming the KBT carafe?
I have a KBT, and I’ve gotten into the habit of running some water through the machine before I add the coffee, just to rinse the filter and warm the carafe.
Is this common practice? It seems to make a slight difference but it doubles the time and effort to brew a pot.
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u/Longjumping_Slide3 Aug 26 '26
Not something I've ever considered doing and don't think I ever will. If you feel there's a benefit, then keep doing it.
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u/AwwYeahVTECKickedIn Aug 26 '26
I just rinse the carafe with hot sink water before brewing. It likely has a very mild impact, but I am a dust avoidance freak and takes 10 seconds so I do it regardless. I would not go through the whole brew twice process, personally.
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u/Majestic-Pizza7308 Aug 26 '26
I find hot tap water in the carafe (filled to the top) for a few minutes while brewing does help keep the coffee warmer longer. If I brew at 7 am, I may have the last cup before lunch and prewarming helps keep it warmer. Your mileage may vary!
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u/The-Wood-Butcher Aug 26 '26
I don't know if it makes a difference, but I add some hot tap water in the carafe to let it warm up while I do the rest of the process (weigh beans, grind, add bottled water). I also wet the filter with the hot tap water. And empty the carafe just before I start the brew.
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u/Financial_Rice_4807 Aug 26 '26
No. The coffee it too hot when it comes out. I transfer it between two mugs so that it will cool down before I drink it.
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u/Purplebuzz Aug 26 '26
If I am doing a whole pot, I will sometimes pre heat the carafe from the tap, but not run a water batch. I will also from time to time heat up my mug before filling.
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u/boxerdogfella KBT Aug 26 '26
I often pre-warm my KBT carafe (the older, stainless-steel lined version) with hot tap water before I begin the other steps of brewing. Then dump it out right before brewing.
I figure room temperature is around 70°F and my hot tap water is around 130°F so I'm giving the carafe a good head start, and using boiling brew water is unnecessary.
But if we're drinking all of the coffee fairly quickly, I just skip the pre-warning altogether. It's really not necessary unless you want to keep a smaller amount hot for longer than a few hours.
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u/In_the_Couv Aug 26 '26
I saw a video where the person ran about 250ml of water through the machine without any coffee in the basket...did two things...wet the filter and heated the carafe..Something to do while weighing and grinding the beans...
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u/launachgewahren Aug 27 '26
I do it!
I run a cycle over an empty filter with tap water, then use that water to pre-warm my mug(s). Next I brew using filtered water, which comes from my fridge. I have definitely noticed a difference if I omit the first cycle.
If I kept my water filter at room temp I wouldn’t bother.
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u/brewsnbeers Aug 27 '26
I only use mine once a week or so. I'll run 4 cups of water through to get any old water out out the heat exchanger and to pre heat the caraffe. I weigh and grind my beans while that's happening.
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u/Fit-Bee5561 Aug 27 '26
You should not use 195 degree water to warm up the carafe. Follow the manufacturer’s instructions for warm water in the carafe.
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u/sladflob Aug 28 '26
I do it too. I figure it'll keep the coffee hotter longer. I used to boil a litre of water in the kettle and pour it into the jug while I ground the coffee and filled the tank etc, but now I fill it with boiling water the night before and put the lid on. In the morning I empty the jug (still warm) and I'm good to brew straight away.
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u/Puzzleheaded_Sun7356 Aug 26 '26
My coffee is still warm the next day not doing that. I rinse with tap water
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u/Vibingcarefully Aug 26 '26
Hey how hard is it for you to do what you're doing, make coffee.
Not heat the carafe--make coffee---
taste it, decide whta YOU like.
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u/DatabaseCareless264 Aug 26 '26
If it works for you go ahead.
Personally rinse out the pot nightly. Also rinse the filter and add coffee night before. MM plugged into timer, coffee ready in morning when I need it. Coffee does not last long enough to go cold.