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hippy
@Jonny69
Folks, do you pre-heat your portafilter or just load it up cold and pull the shot bareback?
I’ve always preheated but wondering about the benefits of a slight temperature spike at the beginning of the shot, dropping down a bit through the pull as the temperature sinks into the cold portafilter. With preheating I’m guessing you start quite hot and get a steady rise through the pull. Do you? I think I need to borrow a Picolog and some thermocouples from work, I need a better look at what’s going on.