I'm having problems with a very bitter/burnt taste from my Aeropress and the El Salvador La Ilusion Bourbon coffee that I got with my grinder from Hasbean along with the Skerton.
I've tried shortening the brew time from 60 seconds to 30 and that reduces the bitterness but it's still there and I'm still unable to taste any of the sweetness and fruit salad that I'm supposed to.
Using 17g per per brew (one cup), tried down to 13g and also using water at around 85C.
I am finding the Aeropress very hard to push down with this coffee so I'm not sure if that's an issue. Any ideas what I can do?
Grind coarser. Sounds like you are running close to espresso ground in it, which is fine if you are doing it the normal way round, but inverted, coarsen the grind up.