Bialetti Coffee Makers & Espresso Machines - Page 6 - Recent Questions, Troubleshooting & Support

Here is the owner's manual. Also, by filling the filter with espresso grounds and using water, you are making espresso. It only becomes cappuccino by adding milk.http://www.google.com/url?sa=t&source=web&cd=5&ved=0CEcQFjAE&url=http%3A%2F%2Ffantes.com%2Fmanuals%2Fmukka_express_manual.pdf&rct=j&q=Bialetti%20%22Mukka%20Express%22%20owners%20manual&ei=JdWATp7uLcu4tge7prWNAQ&usg=AFQjCNEIi9J9flq7TmgLWUYOiLF4KatH3g&sig2=UqfzIzEfVCpfZv60t1wClg

I had the same problem and saw this solution in another bialetti mukka problem report, which made sense: "the safety valve on the lower boiler chamber is there to release pressue in case too much prssure builds up in the pot when brewing. If youy have an 11 mm wrench you can take it out and clean it by pulling on the outsidepart, there is a little knob that may be grabbed by a tweezer, gently pull it out, it is spring tensioned, and run water in the opposite end, Chances are some coffee grounds particles got in it and it is not seating good. after cleaning put a few drops of olive oil in it , the inside part. Should seal better and still funtion as a safety valve. Or you can leave it in place in the pot and just pull on the outside , flush with water and then put a few drops of olive oil in it. While you are at it, put olive oul on the threads, olive oil film and the the rubber seal and add a little to the rubber button on the top valve."

If the bottom is screwed too tight on the top, you could try to warm the with hot water and cool the bottom with cold. This could help to expand the top and make it easier to unscrew.

the safety valve on the lower boiler chamber is there to release pressue in case too much prssure builds up in the pot when brewing. If youy have an 11 mm wrench you can take it out and clean it by pulling on the outsidepart, there is a little knob that may be grabbed by a tweezer, gently pull it out, it is spring tensioned, and run water in the opposite end, Chances are some coffee grounds particles got in it and it is not seating good. after cleaning put a few drops of olive oil in it , the inside part. Should seal better and still funtion as a safety valve. Or you can leave it in place in the pot and just pull on the outside , flush with water and then put a few drops of olive oil in it. While you are at it, put olive oul on the threads, olive oil film and the the rubber seal and add a little to the rubber button on the top valve.

Try turning down the temperature. Also make sure there is no coffee left around the edge of the joining surface. This worked for me.

Make sure your grinds are ground properly. If you try a different coffee and it still continues the valve may be no good. Also remove the screen on the top half and make sure the passage to the top is clear.

For more information visit: www.CeriniCoffee.com

hey, use correct amount of water and check that the weight parts are firmly tight. Check this guide that I wrote have fun Avi

hey, screw the 2 parts tight and before that check if the filter plate is not clogged. See this guide that I wrote Avi

check your filter plate to make sure it isn't clogged , that could make the safety valve do it's job and go off.

hey, probably a gasket issue or a coffee which is too fine, did you change your coffee ? See this page for a fix Avi

On the knob there is a plastic o-ring. Insert a non sharp tool and pry it until the cap opens. Be careful that some parts will fly around. Remove and replace the batteries while taking care not to loose the spring. Reassemble and remember that the silver part of the metal disc goes towards the 2 electric contacts. To close the knob i used a mallett; i put the knob upside down on the floor and hit the metal screw.

There is a valve in the compartment where you place your fresh, cold water. This valve must not be covered as it is necessary in building up steam pressure to push the brewed espresso upwards. Also, most stove espresso makers have a rubber type gasket that is usually placed on the base of the upper part of the maker. Check that you have a gasket.