TIL my barista trainer was right about one thing and I wasted 2 years arguing
She kept telling me to stop storing beans in the hopper overnight and I ignored her for almost 2 years because who wants to grind fresh at 6am? Then I finally timed it at my shop in Portland and the difference after 8 hours was real enough that I bought 4 single dose jars and never looked back. Anyone else had a trainer call something that you swore was nonsense and then it turned out dead on?