Kate, I had a little look on the net for you and came across this review on Amazon.
http://www.amazon.com/exec/obidos/tg/detail/-/B000056JCY/002-1740351-7636040?v=glanceTake a looky here
HTH
5 out of 5 stars EASY way to clean the mesh net!, August 15, 2002
Reviewer: E. Wygant "skoolmom" (Middletown, De) - See all my reviews
This is really a wonderful product! My 6 month old son uses his all the time.
I found an easy way to clean the mesh part that I would like to share with every one. First- remove any large pieces of pulp or food left inside- don't worry about scrubbing it out or removing all the food. Second- mix 1/4 a scoop of an oxi-clean type cleaner with hot water in glass cup. Third- put the mesh bag in the glass- ring side up (you can hold it down with a spoon). Wait about 10 minutes. Pull the mesh bag out- rinse and clean with regular dish washing soap. Air dry. Mesh bag comes out sparkling white (so will your glasses if you have hard water stains!). The food simply disolves. Works really well with bananas!!!! No more brown colored mesh. No more time spent trying to pull small bits of food out from the mesh edges or from around the ring.
Now what to feed baby- everything but pudding and ice cream! Bananas, plums, peaches, melon, chicken, cooked carrots, potatoes, you name it. No grinding food, don't have to spend extra money on jars of baby food. This little gadget is GREAT!