How cool is this? Know the temperature of your mash–instantly! Plus, you can get an accurate reading of your fermenter without opening or exposing to contaminants. And there’s nobody to stop you from yelling “PEW! PEW!” when taking a reading.

After some testing, it has proven quite accurate. Of course, steam (on a bed of grain, say) and krausen will produce inaccurate readings, or accurate, if you consider it’s just measuring the steam/krausen, not what you really want to measure!

This once too-fancy-to-afford device can be had for less than $30 if you shop around. I just added a good one to the Supercenternation store.

In other news, the second edition of The Frugal Homebrewer’s Companion has been released! 80 pictures in all!