my concern is that the maris otter might be too malty for a fruit or chile beer? i have no clue, never used it.
my mulberries are quite sweet/tart, very nice. i just figured they are free, and something like 9% sugar, so why not use em? especially when you price berries at the supermarket. i collected 1 LB in about 10 minutes and i'll get some more every other day prolly.