On 2012-03-06, Paul D Smith wrote:

My swordfish claims about 30 minutes usage but I tend to run for 10 minutes,
leave for 10 to recover and then start again. BTW if you have a compost
bin, the shreddings can go in their and they rot down quite nicely. Avoids
the "big rush for bin day".

Shredded paper is especially good for worm bins because it's dry &
high in carbon & it goes in loosely (with air), whereas kitchen waste
is wet & high in nitrogen & tends to pack itself down.