Originally Posted by bottlebomber
If you remove a small amount of insulation you can seal the hot water element against the interior liner and with a 1" nut and silicone o-ring.
Originally Posted by duboman
Are you saying the HLT water was boiling and you then used boiling water to mash your grains in?
If so, the boiling water could of extracted a lot of tannins from the grain and that may be causing the off flavors you are describing.
I previous method I used was boiling water into the Mash Tun and then allow to cool to strike temp to avoid having to calculate the specific heat of the mash tun. You just leave the lid open and allow to cool (stir like crazy and then sit a bit) until the temp is right on. This method worked fine for me since I started doing AG a couple of years ago.
I did not intend to boil the water this time but rather over shoot my Strike Temp a bit and wait to the mash liquor was at the right temp.
I just went and tasted the last three batches all of which are in the fermenter and the flavor is only really noticeable in the ale and it is so slight I'm not sure if I'm just crazy. Some one needs to invent a beer over IP app so we can share what we have made (good or bad)