I have a partial bag of 2 row that has been in the bag in a rubbermaid container for over a year. I actually bought another NEW bag but have used all of that and now all I have is the old bag and I want/need to brew tonight. is there a definitive way that I can tell if this malt is still good? .....it is dry...and has been covered. It does not taste "stale" but it also does not tastes fresh either... any help would be appreciated.