Cleaning problem - I'm the first person finds it?

NEGATIVE =
My 1st Test: thick soup.
Centrally located on the inner screw-lid, a push button,
of draining the accumulated inside pressure when pressing.
Before removing the contents should be pressing this button.
So I did that, unfortunately, came directly from the button
herausgequollen also the filling with the pressure.
Screwing the cap turned out very stiff,
apparently by the internal pressure.
For the leadership of the pressure-relief button but continue pressing the soup.

During the subsequent cleaning attempt turned out,
that the inner cover is not dismantled into its component parts,
with the result that no real cleaning of food residues is possible:

1. leftovers could not be with a good feeling and result
get out of a very narrow and deep screw-type leadership.
The recess is so narrow that only one knife blade fits,
but no cloth and rinse with water is not enough.
The problem every reader Especially when dicklüssigem food is certainly conceivable.

2. The cleaning of the pressure release mechanism garnicht possible as not removable.
This leaves leftovers inside the button mechanics.

From a cleaning attempt of the screwdriver-circuit in the dishwasher
I have refrained,
a) will not lead in the described mechanical problems to the conclusion
to get a good feel for reuse;
b) is this type of cleaning is not provided in the instruction manual.

The seller has responded quickly to my e-mail to
and gave me the address of the service company. Esbit in Hamburg.

There I signed up via email with description of the problem on 12.18.2013,
and demand, such as the cleaning is to be doing.
The end of December I asked to phone again,
when I could expect a touch of Esbit since.
ANSWER: "Your email has arrived, it is someone from the service on 02.01.2014 Report by telephone".

On 07/01. I asked again by e-mail.

Today is 15/01/2014, neither by email nor by telephone to ESBIT reported,
My patience is at an end.
Have returned the portion.

Summary: With the technique, the pot is completely unusable,
since leftovers of reach somewhere in front of him-nest ....

Even if more solid materials are introduced,
or only half the loading takes place,
when hot food is a satisfactory cleaning of all parts,
the steam or the food coming into contact indispensable
and that does not work with this product.

So my search continues,
so far in other products such pressure mechanical problem to me is not noticed,
Special attention will it be after this experience.

So if you can recommend a thermal product for hot food to me .........