Just thought I would share. they even tell how much they produce a day. (This was posted in 2011)
http://youtu.be/pvK9QlQtrKI
http://www.youtube.com/watch?v=EdNkfTS0lOQ&feature=share&list=UU7qB--C24DexdVB1GOTgbJQ
http://youtu.be/pvK9QlQtrKI
http://www.youtube.com/watch?v=EdNkfTS0lOQ&feature=share&list=UU7qB--C24DexdVB1GOTgbJQ