Poll: How long does your beer last? Posted 11/07/2013 How long does a batch of your beer last? Less than 2 weeks from finished state. More than 2 weeks less than 1 month. More than 1 month, less than 2. Mora than 2 months, less than 4. More than 4 months. View Results About Aaron Former Homebrewer, Runner, Cyclist, home cook, sort of handy when I have to be, husband, father, blogger, alpaca farmer, New England sports fan, all around Geek.