coffee maker

Why is my bunn coffee maker overflowing the grounds basket?

Why is my bunn coffee maker overflowing the grounds basket

We recently went from a cold old 12-cup Mr. We know coffee at work to an old but hot Bunn coffee pot. It appears to have no damaged parts. This is a 10 cup BX-B. However, At the time of brewing coffee, it starts gurgling through the top after the first thirty seconds of brewing.

After disassembling and cleaning the basket and spray nozzle, the coffee grind was the first thing I tweaked. Initially, it was a bit okay due to the fact that it had been purchased for the colder pot. Got a proper automatic drip grind and it continued to overflow. I also tried a larger style of a coffee filter to make sure it didn’t overflow from beans falling out of the spout.

bunn coffee maker
Bunn coffee maker

After about thirty seconds of a weak stream through the basket, the water recedes to the point where it begins to spill, along with the grounds, from the top of the brew basket (where it meets the head of the base).

What should I do to counter this behavior?

I can order a coarser grind at the local coffee shop if that would make a difference.
If it’s a cause for concern, we are on the ninth floor of a building.
Building faucets often show signs of hard water.
I would really rather not go back to the colder pot as it brews less flavored coffee, requires excess grinding to prevent it from becoming watery, and takes 12-15 minutes to brew.

Why Callis

Can you tell us which Bunn model you have?
@CosCallis is a 10 cup BX-B

I am facing the same problem. So I have tried everything. Cleaned according to the instruction manual and still overflows (but only when I make a full pot) I always notice that my coffee filters are shorter than I would think they should be, but when buying from stores they are all the same size. When I read the manual AGAIN, I think I will buy the Bunn Coffee filters you recommend. That may be the problem. It is a pity that we have to follow that path because it is not convenient, but hey.

Strange wayfarer

You will not see a spring-loaded check valve at the bottom of the brew basket, so you can get the pot out before the brew cycle is complete, right? Those DO break down and can cause the problem you describe. Sometimes they just need cleaning. Sometimes they need replacement. If you are not using the original pot that came with the unit, you may not be attaching the check valve properly.

James McLeod

If I understand your description, it seems like the water is flowing into the basket faster than it is coming out. This might require adjusting the nozzle that feeds the basket or the dispenser in the basket; probably first, from your description of how soon after brewing the problem starts. Is there a way to slow down the influx?

Bunn’s troubleshooting guide suggests some rules that it is also possible that the coffee is too finely ground or the filter is not as permeable as it should be; naturally. According to Bunn’s recommendation, you use their brand of filters, and if not, that’s an easy thing to try. In spite of their advising it, the spray head may be missing (it could also be loose) and that you avoid finely ground coffee, decaf coffee, and soft water.

TJ Ellis

of course, avoiding decaf coffee is good practice in all situations 🙂
James McLeod
True, but who would say it would cause mechanical failure?

TJ Ellis

When you want to eliminate the coffee grind/filter variables, you can try running the brewer with water only, no coffee, and no filter and see what happens.

TJ Ellis

(Oh wow, I commented on this answer 4 months ago and didn’t realize it. I can’t say why I didn’t think of this then).

Strange wayfarer

Have you cleaned the piping to the coffee maker with vinegar or citric acid? We know that mineral build-up can interfere with the geyser-like process by which drip pots work. Buildup usually slows things down, but it can also work to speed up the flow of water.

To read about Bunn coffee maker

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mr coffee espresso machine how to use

mr coffee espresso machine how to use

Espresso drinks are made from finely ground coffee beans infused with steam and are enjoyed by people all over the world. The Mr. Coffee Espresso and Cappuccino Maker is an inexpensive way to enjoy espresso drinks in your home. By following a few simple steps, you can become your own barista by using the Mr. Coffee Espresso to create your own espressos at home and try to know Mr coffee’s espresso machine how to use them.

espresso machine how to use
espresso machine how to use


Make an espresso

1 Turn the button on the top left side of the espresso machine in the middle position (off) to be sure that the espresso machine is off.

2 Remove the cover on the top of the machine to open the water tank.

3 Use the decanter (jug) to fill the reservoir with the appropriate level of water depending on the amount of espresso you plan to make. The ECM150 decanter has marks for 2 and 4 cups, as well as a water level indicator to use for steaming. For amounts other than 2 or 4 cups, just adjust the water level based on the decanter brands. Be careful not to overfill the tank.

4 Replace the tank cover. The cover should be screwed on firmly, but not too tight. If the lid is too tight, you might have difficulty unscrewing it later due to the pressure created by the steam.

5 Scoop quantity of espresso coffee into the filter, and hermetically packaged using the bottom of the excavator. The filter basket is marked with numbers that correspond to those of the decanter. Similar to water, be sure not to overload the filter basket.

espresso coffee machine how to use


6 Place the filter in the brew basket and insert it into the espresso machine. There are teeth on the edge of the filter basket that match the holes under the top of the espresso machine. If you start with the handle to the left, and push, the teeth will slide into the grooves. Turn the handle to the right until it will not go any further.

7 Turn the knob to the espresso machine rearwardly of the machine in the position “brew”, which will be marked by a small cup of coffee icon. Depending on how much espresso you are making, brewing usually won’t take more than a few minutes. Do not stand too close to the machine, hot steam will come out near the tank cover.

8 Turn the knob back to the center (off) position after the brewing process is complete.

9 Pour the espresso from the decanter into small cups. Small espresso cups can be purchased at most home goods stores, and are generally inexpensive. Use caution when handling the decanter and pouring the espresso, as it will be very hot. If you want to use the brewed espresso for drinking a glass of latte or a cappuccino, pour it into a larger cup. Mugs designed specifically for lattes and cappuccinos are also available at home merchandise stores at varying prices.


Steamed milk

10 Turn the knob to the espresso machine to the middle position (off) to be sure that the espresso machine is off.

11 Remove the cover on the top of the machine to open the water tank.

12 Rinse any espresso or espresso grounds in the decanter.

13 Use the decanter (jug) to fill the tank with the appropriate level of water needed to create steam. This level is marked on the decanter with a small icon representing a jet of steam. You should be careful not to overfill the reservoir.

14 Replace the tank cover. Again make sure it is secure but too tight.

15 Pour the milk, half and half, or cream into steel frothing ceramic or stainless steel pitcher. If you don’t have a foam launcher, you can use a cup or even the ECM150’s decanter. The amount of milk you use is entirely up to you, but be careful to leave enough room in the frothing pitcher for the froth that will be created.

16 Turn the knob on the espresso machine towards the front of the machine to the “steam” position, which will be marked with a small icon representing a burst of steam.

17 Place the frothing launcher under the frothing station when the steam begins to generate. The frothing station should be slightly above the bottom of the jug.

18 Slowly move the foam launcher in a circular motion, while gradually moving downward from the post until it is just below the surface. Use caution when handling the foamer.

19 Turn the knob back to the center (off) position after you have finished frothing the milk.

20 Using a spoon to hold the frothed milk, mix the milk with the espresso.

21 Use the spoon to scoop the frothed milk on top of the espresso-milk mixture.

Tips and Warnings

Add the water to the steam before removing the filter basket. This will cool the machine down and reduce the risk of a wet pressure release when removing the basket.

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Best coffee maker under $50

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How to use a coffee machine

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