Question about Bunn NHB Coffee Maker

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WEAK COFFEE & NOT HOT ENOUGH

I HAVE A BUNN COFFEE MAKER WITH A THERMOS TYPE CARAFE. THE COFFEE COMES OUT WEAK AND NOT AS HOT AS IT SHOULD BE.COULD IT BE A BAD HEATING ELEMENT?

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  • Anonymous Mar 26, 2014

    I have had this coffee maker for a very long time and last week it stopped heating the water.the thermastat is set and the heater coils are not limed up.I noticed that the (generally clear)sleeve on the thermal cut off is very dark colored.Could this be the problem?

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Basing on personal experience (you can find more on Google probably), solutions are:

On percolated (filter) coffee machines:

Check water temp, if water temp is insufficient , most common is scale heating element , faulty element, faulty thermostat.
Check if water is dripping right at the center of the filter, if it is dripping on one side because the orifice is clogged, that can result in weak coffee.
Coffee blend not well distributed on filter basket.

On Espresso machines:

Check water temp, same as filter coffee machines (thermostat element, scale on heating chamber).
Ensure that coffee is filled correctly in the filter cup (fill at level), and well pressed.
Ensure that the coffee mixture that you are using is not too coarse, buy the apposite one for espresso.
Ensure that you are not leaving the machine brewing for a time that is too long, and Italian coffee cup is very small, approximately one regular shot.

On the hob moka pots (espresso, Moka and Bialetti type):

This are the trickiest ones, you need art and practice to get a good espresso with a Moka, but when you learn, the result is better than what you may get with an home electrical espresso maker.
The frame on the hob must be not too strong, and the mixture coarse but well pressed, with water at level tag, or you will get a weak coffee.
On Mokas a good strategy is keeping hob at minimum, and turning up the flame at top when coffee starts coming out.

French and turkish cafetieres:

Ensure that you put enough coffee, water hot enough, and that you left the infusion enough time to get a strong coffee.

Note: insufficient pressure and clogged lines on electric machines never give you a weak coffee, exactly the opposite.
Not pressed mixture always gives weak coffee, but too much pressed mixture may give you coffee with bad taste.

Posted on Apr 01, 2009

  • fodie Brown Jan 11, 2011

    We just took our bunn machine back to the store and got a different one due to luke warm coffee. We checked the temp on the new on and found out that it too only had a temp of 73C !!! Could we possibly have two faulty machines?

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