Well this is all very interesting. knowing what model you have (220V or USA 110V ) or the power setting you are using as well as the altitude of your location would be helpful. Also I bought mine recently so I have the updated controller (one without the grains graphic).
I've seen a YouTube guy changing out the controller for a "better" one. I'm guessing the PID algorithm employed in the stock Klarstein is lacking the sophistication to achieve a more constant temperature.
Being new to brewing, I'm wondering how a +-2% mash temperature variation affects the consistency of the end result. I do see the temp drifting above and below so it probably averages out.
So I did a boil off test with 3 weighed gallons of water (with the kettle 3 gallon marking annoyingly 3/4" above the water line). I'm at sea level and have the lid slightly ajar (1" gap) to maintain a boil. I'm at full power (1800W). I found 0.86 gallons per hour with a slight amount of inaccuracy given the water left on the lid and sides.
I've seen a YouTube guy changing out the controller for a "better" one. I'm guessing the PID algorithm employed in the stock Klarstein is lacking the sophistication to achieve a more constant temperature.
Being new to brewing, I'm wondering how a +-2% mash temperature variation affects the consistency of the end result. I do see the temp drifting above and below so it probably averages out.
So I did a boil off test with 3 weighed gallons of water (with the kettle 3 gallon marking annoyingly 3/4" above the water line). I'm at sea level and have the lid slightly ajar (1" gap) to maintain a boil. I'm at full power (1800W). I found 0.86 gallons per hour with a slight amount of inaccuracy given the water left on the lid and sides.