Not sure if this is an issue or not. I have a stir plate that also has a heating element. I have never used the heating element before but I figured today would be a perfect test. I set it to the lowest heat level and it was barely warm to the touch. It seemed perfect. I placed my yeast starter on it and checked it about 2 hours later. The temp was at about 74 degrees which I figured was fine for a yeast starter. I left for work and when I came back home the temp was about 84 degrees. Is this a problem? I know it would be if it was a batch of beer but since it is just a starter and im decanting the beer anyway does it matter? Also, should I let it remain at that temp? Or turn the heater off? Any help would be appreciated.