can coffee go bad

I have had a bag of ground coffee for over a year now and I am wondering if it Coffee can go stale and lose its flavor. Keep ground coffee in an opague air-tight 26 Mar 2008 ... Iy#39;m not sure if this belongs here or kitchen safety, but does coffee go bad? I only 12 May 2009 ... Iy#39;m assuming that brewed coffee, if left out, can spoil, right? Assuming thaty#39;s true, Can I still drink the coffee left in the pot from yesterday?. Answer 1 of 1: How long does it take for coffee to go bad? If ity#39;s ground - 24 hrs Whole bean Can Coffee go Bad? Post by DaScribbler � Sat Oct 01, 2011 3:25 am. Iy#39;m a big 1 Replies |Watch This Discussion | Report This| Share this:When does coffee go Does coffee ever go bad? We keep our coffee grounds in the fridge. We dony#39;t I get my morning tall starbucks black bold coffee....and I will sip it all day long...