I lived with a buddy of mine who owned one of the first generation Keurig machines. We had problems with roaches cropping up here and there and we tried everything to get rid of them from diatomaceous earth to calling an exterminator but they always came back and we had no idea where they were coming from. We had assumed at some point that it was probably from an adjacent town home so we just dealt with them as they came and I didn't think much of them after that. Fast forward a year or so and I've moved out of the place. I get talking with my buddy about the old roach problem and he tells me that he found out where they were nesting when his Keurig machine stopped working and he attempted to open it up and they came pouring out of the machine. My buddy grabbed some roach spray we had stocked up on and drenched the machine in it to kill as many of the damn things as he could. He ended up throwing that machine away. I'm glad I switched to French press and moka pots forever ago.