According the The Great Northern’s website, “A dark beer with a soft bite, Fred’s is brewed using a special de-bittered dark malt, fermented cold & lagered at least 4 weeks. A smooth brew with light roastiness.”
Brewed with organic grains, this American amber is nicely balanced between maltiness and hop character.
Do you like beers with a little tart twinge to them? Or would you like to acidify your mash without adding calcium? If so, you may want to think about sour mashing — the other sour brewing technique.