I have been using a 25L Klarstein Maischfest Mash Kettle Mash Tank since 2018, probably done a dozen of so brews. Then I had an overheating issue which was for some time worked around by manually holding the thermal cut-out reset button (on underside). Then finally this trick resulted in the thermal safety fuse blowing and tripped the electrics and could not be reset. The actual heating element(s) look damaged. I bought a new fuse, and new thermal cut-out switch, rewired the electrics but on first re-use the system tripped again within a few minutes and so I think it is the actual heating elements causing this which have been damaged in the overheating.
Does anyone have any experience of this, or have a suggestion to fix this please?
I am looking to buy a replacement boiler/brew kettle. I think the problem with the 25L Klarstein is there is a build up of heat directly above the heating element under the grain filter and that there is so little movement of liquid at this point that heat is concentrated in this area, causes the tripping out issue. On draining the boiler then is always a large deposit of burnt on material that needs serious scouring. So a wider boiler with a more flexible grain bag (rather than a stainless steel filter cage) may be better. Hopefully folks on this forum can help with some suggestions.
