You would probably know if they were rotten—smell and/or looks would be really off. As for whether they're dry, they're dry enough if they break apart easily—th

You would probably know if they were rotten—smell and/or looks would be really off. As for whether they're dry, they're dry enough if they break apart easily—they should crack, not bend. There's also no such thing as a minimum dose. People have found benefits with very small amounts (1/20g) if you're just curious—it literally cannot hurt.