Does anyone have a megapot 1.2 10gal mashtun? I'm looking for ways to insulate it to keep my mash temp stable. Used it for the first time yesterday a d it would only hold temps for about 15min. Very much a pain in the ass. Is holding the temp important? I heated my strike water to 163. Added grains, it dipped to 152 where I wanted it. But after 15min it dropped to 149, and I had to reheat it 3x. Huge pain as I have 1 burner and was heating my sparge water.