Yea, it is very hard to tell. Look up beer infection and then if it starts to look like something you recognize, then you can worry. I'd just taste it from time to time.
Holy cow- you guys did it. The Kickstarter was successfully funded! Now the real work
Monticello Barleywine, Red Nosed Tripel
Cali Common, Imperial Common, Sunshine Belgian Rye, Sticke Note Alt
Cherry Blackberry melomel
Belma Pale Ale, Cluster Fug IIPA, American IIPA v1.0, rauchbier, roggenbier