A barista in Chicago told me my drip coffee was bitter, so I changed my grind size
I always thought my pour over tasted fine until this one barista, Maria, tried a sip and said it was over extracted. She suggested I go coarser on my grinder setting, from a 12 down to a 7 on my old Encore. I felt dumb because I had been using the same grind for like three months, never thinking about the bean roast. I switched it up and the next cup had way less bite, more sweetness. Has anyone else had a total stranger's coffee criticism turn out to be spot on?
A guy at a shop in Portland did the same thing to me about two years back. He watched me pour and said my water was way too hot, I was basically cooking the grounds at full boil. I dropped it to around 200 and it made a bigger difference than the grind change did. The Encore is a solid starter grinder but the steps are pretty wide, so going from 12 to 7 is a big jump. If you're curious, try 9 next and see how it lands between those two.