Temp control. Over kill but then

If you're handy with electrical things. Need to control liquid temps.

http://hbd.org/kroyster/construction.html

Okay it's overkill but then if you're handy I'm sure you can figure out a way to downsize it-))) Would make one killer tempering box.

mmmmmmmmm Beer!

That guy has a lot of time on his hands!

I found a simple tempering tray at this site:

http://www.dunnamphoto.com/

click on "technical" then on "Tempering Tray"

Looks interesting and simple.

John