Reusing yeast from bottles and previous fermentations

[homebrewjapan]

A number of my homebrewing friends are harvesting yeast from commercial bottles or reusing yeast from previous fermentations. I wanted to know how it was done so I've researched it and then written up this guide - hope it is useful to people!

http://homebrewjapan.wordpress.com/2009 ... ing-yeast/