Thanks for the tip that was actually not listed in the the user manual.
This morning I encountered my slightly over one month (Dec 2013) old Keurig Mini B31 jammed up, I was only used 3 times so far...:( and feeling quite frustrated after wasted all 3 K-cups to try and find out what went wrong, initially thought it did not punch the hold properly, but still only a few drops of coffee came out from the brew, everything thing seems to work fine, it was just no hot water flowing down.
Tried to clean up K cup bottom needle with clip, but does not help, after browsing though fixya found that the top part needle also really need to clean up (not stated in the user manual), by using paper clips and finally it works again after all the dirt came out from the top part of hold puncher. My tips for people who did not use it daily /very often, they should:
- Clean up the top needle by running through a cup of water to flow it through the ground coffee excess after each brew was completed, otherwise it will tend to dried up and choke up before you know it.
- It help to shake it cup to have the top of the cup fill with some air, and it has less tendency to have the ground coffee in block up the top needle.
Hope this tips will help you to maintain a good cuppa!