Our old Cuisinart burr coffee grinder has a hilarious design flaw that fills its own insides with super fine grain coffee over time. The switch stopped working so we couldn't turn it off, there was a solid coffee brick stopping it after like 13 years of near-daily use. 
I should brew this and relive most of my adult life in one cup
It still works but after cleaning it's dumping like 75% of the yield inside of itself, our current theory is that it's been doing this for years now but we didn't know because the fresh coffee was bouncing off the Coffee Wall and into the hopper.
https://twitter.com/Kamijacegaming/status/1373700615176605698?s=19
So the options were 1. Feed it like three pounds of beans so it built a new wall or 2. See how burr grinder technology has evolved over the last 13 years and treat ourselves to a new one, we went with 2.
Oh and let's be clear: we didn't open it and look inside until I'd spent like 10 minutes shaking it and tapping it against the sink to loosen and get coffee out. I'm pretty sure there was an actual solid mass in there before I messed with it.
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