Why does it take so long for my coffee to brew?

The most likely reason for your coffee maker's slow brewing pace is that it needs to be cleaned. Water from your tap can build up calcium and minerals deposits in your coffee maker and make it brew slowly.

To clean, run a solution of vinegar and water at a 1:1 ratio through your coffee maker: set it up to brew a full 12 cups (6 cups vinegar and 6 cups water). After you run this through your coffee maker, run two full cycles of plain water.

You should repeat this process every 40-80 brews, depending on how quickly your coffee maker builds up these minerals.

If you've cleaned your coffee maker and the problem still persists, you probably have a clogged valve. Coffee grinds can sometimes get trapped in the valve and make the coffee brew slowly. This device has a valve replacement guide that may be of use to you. Instead of replacing the valve, simply remove it and wash it out. Be sure to replace the valve in the correct direction when you replace it in the how water tube.

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Here is another far less common reason than the main reason you solved so well above. Are you ready and sitting down? The filter manufacturer used the wrong or possibly-out of-specification filter material. My Mr Coffee 20oz coffee maker normally makes 20 ounces in 4 minutes brew time. The grounds are a medium to course grind, off-the-shelf pre-ground. It takes 15 minutes for the coffee to drip through the filter paper. If I use the reusable screen filter instead, it takes the usual 4 minutes.

由 Peter Yannone 完成的 2020年11月18日

My fifty dollar Black and Decker has been way too slow since the day it came out of the box. It causes the coffee to be bitter and horrible. How do I fix it? Thanks.

由 tina white 完成的 2021年4月12日

I think you need to find a replacement.

由 Harry Ohrn 完成的 2023年4月26日

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Hi Tamar,

I want to tell you thank you for the great tip! It worked just fine.

Have a Great Day Ahead, — lovemycats
Here is another far less common reason than the main reason you solved so well above. Are you ready and sitting down? The filter manufacturer used the wrong or possibly-out of-specification filter material. My Mr Coffee 20oz coffee maker normally makes 20 ounces in 4 minutes brew time. The grounds are a medium to course grind, off-the-shelf pre-ground. It takes 15 minutes for the coffee to drip through the filter paper. If I use the reusable screen filter instead, it takes the usual 4 minutes. — Peter Yannone
My fifty dollar Black and Decker has been way too slow since the day it came out of the box. It causes the coffee to be bitter and horrible. How do I fix it? Thanks. — tina white

Carol Dietrich @caroldietrich 声誉积分: 61 1 1 · Answer 1 · 2017-09-02T08:57:21-07:00

Carol Dietrich @caroldietrich

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发帖于: 2017年9月2日

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I just fixed my maker. Tried the clean with vinegar thing but that did not work. Took it apart. Meaning I took the base off ( well partway - enough to pull the cover back to get to the guts. ) Discovered a small piece of paper towel stuck in the intake hose right where the small valve is located. I remembered when my sister was visiting she could not find my coffee basket filter and used a paper towel instead. I removed that, put it back together and works great now. It was fun. Try it.

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