For the longest time I had problems getting my mash to the proper temperature in my rubbermaid cooler. I would add the strike water and hit the temp right on the money only to have the temp drop below 150 degrees. I tried pre-heating the cooler and that helped but it still dropped too much. This last batch I figured it out. The cooler absorbs heat from the water. Heres what to do:
Pre heat the Mash tun with hot water. Then heat your strike water to about 5 degrees hotter than your target temp. Pour the water into the tun and let it cool down to your strike temp then add your grains.
I did a 90 minute mash this way and I only had a 2 degree drop from 154 degrees.
Pre heat the Mash tun with hot water. Then heat your strike water to about 5 degrees hotter than your target temp. Pour the water into the tun and let it cool down to your strike temp then add your grains.
I did a 90 minute mash this way and I only had a 2 degree drop from 154 degrees.