I was so careful with #1, and he didn't get raisins until he was like 2. #2, he was probably >12 months. #3...he found one on the floor and ate it when he was probably 9 or 10 months old. He loves them:shrug so he gets a few once in a while. He had no molars at the time, but somehow, he did just fine with it.
I mostly just hate finding them in the diaper :gross
I just started giving my LO raisins about 1 week ago, she turned 1yr yesterday. I cut them up and gave her only 2-3 pieces at a time and only in her highchair, she loved them!