Twist a small central tube into a coil, and you have made a Graham condenser, which is more efficient than the Liebig, but also more difficult to make. The Graham condenser must be held vertically with the vapor flowing downwards, so the condensed liquid will not collect in the coils and impede vapor flow. We believe that a finned Liebig is at least as efficient as a Graham condenser.
You can make a Graham condenser by the same simple method used for the Liebig if you leave the ends of the coil straight and pass them through corks at each end of the cooling tube.
Was this article helpful?
Discover How To Become Your Own Brew Master, With Brew Your Own Beer. It takes more than a recipe to make a great beer. Just using the right ingredients doesn't mean your beer will taste like it was meant to. Most of the time it’s the way a beer is made and served that makes it either an exceptional beer or one that gets dumped into the nearest flower pot.