I worry about this too. I can have problems with both weevils and rodents. Rodents seem under control now but I do see some moths around.So, here's my ? of the day... 2 - 3 x/year, our local Blue seal has a truck load sale of feed. It's offered for $2 less/bag than their usual price. Given that when I buy feed, it can be stamped with a date that is not acceptable to me, how much feed, and for how long would it be prudent to stock ahead to take advantage of the discount pricing???
I would only get an amount that would stay fresh for the time you use it. Less if there are pest problems.