I wipe my cups with a used dryer sheet and have experienced 0 static electrical issues or powder sticking in the cup.Have you experienced static electrical charges - grains of powder sticking in the cup?
I have a Dead Drop. Works great.



I have a 3d printed cup from mk machining. A kernal or 2 will occasionally stick to it. I thought it was just due to the rough texture compared to metal. I will try the dryer sheet. Maybe its static, but Its not a big deal. I just trained myself to tap it against the funnel. The tap helps clear the funnel if it bridged and starts settling a compressed load too, bonus. I don't even think about it now.Have you experienced static electrical charges - grains of powder sticking in the cup?
For all the people raving about how their cup is perfect, here's how I do mine: any cup at all, with a single layer of painter's tape where the kernels will hit. No bounces out of the cup.ordering a new glass cup

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