Kopi Luwak has been written about quite a bit - so I won't say too much about it. For those who haven't heard of it, it is coffee that has gone through the digestive system of the 'Luwak' an asian palm civet cat native to the Indonesian archapelego.
The digestive enzymes apparently remove some of the bitterness and reduce the caffeine resulting in a mild but still full bodied coffee.
It is very rare, and hence very expensive.
The ABC's Foreign Correspondent program recently did a great story - also available to view online and I recommend it as a good starting point.
Why this sudden interest in Kopi Luwak?
You'll have to wait for the weekend.