Question about Bialetti Moka Express 6-Cup Coffee Maker

1 Answer

Howdy, I have a six-cup Mocha Express. Lately when I've been making my morning brew, it makes a high pitched whistle (like a tea kettle boiling) towards the end of the coffee brewing. I have a feeling there's a coffee ground stuck somewhere. Any thoughts on how to end that sound?

Posted by jonathangrac on

Ad

1 Answer

Mark Cheong

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Bialetti Master
  • 791 Answers

Stove top coffee espresso brewers; have three compartments, the lower is a sealed water tank that once heated will push boiling hot water and steam through the coffee grounds and over flow into the 3d chamber at the top of the pot. It is finished once all the water has boiled out of the lower chamber.
* Naturally when you boil water in a sealed chamber it's going to pressurize to the point where something will give. In this case it's the coffee grounds. But what if the grounds plugs up the filter and pressurizes it beyond what the chamber can safely contain? This is where the safety valve will sense the over pressure and release the excess steam. You will see and hear a loud hiss and steam exiting from the side where this valve is.
* The safety valve is not adjustable. Pre-mature blow out (of steam) can be caused by too fine a grind on the coffee, Turkish grind is finer than espresso. This tiny grind will clog all the filter holes. Use the standard espresso grind which is 1 size up from Turkish grind.
* The safety valve may blow if too high a heat is applied to the pot. Turn down the stove to a lower setting to give the hot water and steam time to flow through the coffee. If you observe the coffee as it oozes out of the center post. It should be a steady flow (like lava) with a gush of steam near the end of the brew when the top pot is full.
* The safety valve can get clogged which needs to be cleaned and checked PRIOR to filling and using.
* when in doubt. change out the safety valve. You could check with your vendor or MFR for replacements. Also check Amazon.com for the part.
Aloha, ukeboy57

PS; There a numerous videos on how to clean and maintain these pots. (I do NOT recommend Descaling). Here is one that looks safe:
https://www.bing.com/videos/search?q=stovetop+coffee+cleaning&&view=detail&mid=8AF60938A0B50A2D65528AF60938A0B50A2D6552&&FORM=VRDGAR

Posted on Feb 12, 2018

Ad

5 Related Answers

Anonymous

SOURCE: Cleaning problems

Hi - I just clean mine with hot water (no soap), and dry it with a towel then leave it on the window sill... My problem is that the coffee can taste a bit metallic at times; and i want to know if I should be cleaning it after every time I use it... Suggestions?

Posted on Jun 23, 2008

Ad

Anonymous

  • 1 Answer

SOURCE: 6 cup only making one cup

I've finally discovered the solution to this problem. When the water is boiling and you can hear it trying to come up thru the coffee maker, pick up the Bialetti Coffee maker about 3 inches and just hit it back down onto the burner of the stove. You don't have to go crazy here.

Before you start making coffee just make sure the strainer is clean where the gasket attaches as you might want to blow through it and all parts are dry before you put coffee into that little metal cup.



Posted on Sep 01, 2008

Anonymous

  • 4 Answers

SOURCE: 6 cup moka express only making 1 cup of coffee

The funnel cup where you put the coffee may be bent out of shape, even slightly will be enough to let the pressure escape without the steam properly going through the cofee.

Posted on Jul 16, 2009

Anonymous

  • 7 Answers

SOURCE: Espresso irregularly spurts out the center post

It IS the gasket!!!!! Store the pot with the two parts screwed TIGHTLY together for about a week. Tighten it up as the new gasket compresses. Problem solved in two weeks or less. Funnel had NOTHING to do with my problem. Also cook on medium to low heat. High flame seems to make the problem worse.

Posted on Jul 17, 2009

Anonymous

  • 7 Answers

SOURCE: barely any coffee rises to upper chamber after cooking

It's the gasket!!!!! Store the pot with the two parts screwed TIGHTLY together for about a week. Tighten it up as the new gasket compresses. Problem solved in two weeks or less. Also cook on medium to low heat. High flame seems to make the problem worse.

Posted on Sep 12, 2009

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

tip

How to clean out your stovetop kettle

I've been using the same kettle on my stove for about a year and I hadn't cleaned it even once until last week.
A while ago I started noticing these weird white chucks that would come out with the water but I just figured that it was because I get a lot of use of out my kettle.
It turns out that the white chunks are actually limescale.
I did some research on it and thankfully limescale is not harmful to ingest. However, it's pretty gross to look at and I certainly wouldn't want to serve a cup of tea to a guest that is filled with strange white flakes.
So I figured out how to clean my kettle with stuff I have at home.
All you need is some regular cooking vinegar to do the descaling for you.
There is no need to buy expensive chemicals that you wouldn't feel safe using on a cooking product anyway.
Start by rinsing out your kettle with warm water.
Then, fill half of it with water and the other half with vinegar.
Place it on your stove and let it come to a rolling boil.
Then, just leave it there over night.
When you wake up in the morning, dump out the water and vinegar solution.
Take a long scrubbing brush and scrub the inside of the kettle to remove whatever limescale is left.
If there is still some caked on, you can repeat the steps over again.
If your kettle is clear of the grime, simply rinse out a number of times with soap to get rid of the vinegar taste/smell.
Voila! Your stovetop kettle is clean and no more unidentified chunks in your tea!


on Jan 06, 2014 • Home
0helpful
1answer
0helpful
1answer

Engine makes high pitch sound

sounds like a vacuum leak check for cracked vacuum lines
0helpful
1answer

Keurig loud squeaking noise

End of life procedure "Say Good Bye" or have a fire!
0helpful
3answers

How do you make a proper cup of English tea using a teapot?

There's more to making the tea than just shoving a few bags in a tea pot and adding hot water. Lovers of English tea believe that you need to warm the pot beforehand and let the tea brew before you start. Take a look at this article on the Yorkshire Tea website that gives a good run down of how to make tea.

http://www.yorkshiretea.co.uk/about-tea/yorkshire-tea-how-to-make-a-proper-brew.php

Feb 27, 2013 • Home
1helpful
2answers

How do you clean a Breville JK73 kettle. I have lost the instructios.

Put a cup of vinegar and a cup of water into the kettle and boil. Clean with a brush, rinse, boil once with clean water.
0helpful
1answer

Will not whistle

It is possible the reed valve broke.
0helpful
1answer

Code reading

replace the serp belt and check idler and tentioner pullys. serp belts make noise after antifreeze or oil has been on them. good luck
Not finding what you are looking for?
Bialetti Moka Express 6-Cup Coffee Maker Logo

Related Topics:

330 views

Ask a Question

Usually answered in minutes!

Top Bialetti Coffee Makers & Espresso Machines Experts

Pierre Laplante

Level 3 Expert

2061 Answers

Kolbrun...

Level 3 Expert

1218 Answers

Ross Keen

Level 3 Expert

1365 Answers

Are you a Bialetti Coffee Maker and Espresso Machine Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...