I often forget about my beer that is fermenting, due to other life issues (kids, job, TV, etc.) and have let some of them sit in the primary for as long as 3 months. No harm was done to them and they tasted excellent when finally kegged and served.
"If guns don't kill people, why do we give people guns when they go to war? Why not just send the people?" - Ozzy Osbourne
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Canon T2i | EF-S 18-55mm | EF 28mm 1.8 | EF 50mm 1.8 | EF-S 55-250mm
3 whipped dog straights, Gillette Ball End Tech, 1959 Gillette Fat Boy
Secondary: Strawberry Melomel