What is the best method to store home brewed beer long term (several months)? I brew a batch of beer in march I set four a side in a closet that usually hovers between 68-72 degrees. I just cracked one open and it had a sour kinda spoiled milk after taste. The beer tasted great when it was brewed so this is a definate down grade in flavor. So my qestion is.. Do I store it in a cooler place, in a fridge, or was this just a freak occurence? What is the best long term storage method? Everything I've read and heard say tha long term storage should increase the flavor.