I have a bag of human-food-grade dried lentils. There is no way I will consume all of them before their expiration, but I don't want to waste them. I know that my chickens can't have them straight from the bag or even cracked. Should I just cook the dried lentils and feed them straight to my birds or can I ferment them, as is? I've been wanting to try fermented feed for a long time, but I don't want to start out with a potentially toxic mix.