Watched a barista in Chicago pull a shot with a 12 cent thrift store tamper and it poured better than mine
I figured a $90 tamper was the missing piece until she told me she grinds 3 steps finer than the recipe card at her shop because the card is written for a different basket size, so what actually matters is matching the grind to YOUR basket instead of chasing the gear, and now I'm wondering how many other espresso problems people blame on tools that are really just a settings thing, what's one piece of gear you regret buying before you learned to dial things in?