I used to buy it quite a bit without too much issue, then I bought a bag and it had lots of little shards and sharp splintery bits in it, got stuck in my hand, hand swelled up...stopped buying it after that which is a shame because the piggies loved it! If I ever bought it again id stick it in a bowl, ours have shallow tapas bowls so they cant shove their faces into them. The oat one they do seems to be less sharp but ive not bought that in ages either..I think they do a few types now. I did get some samples of it from the hay experts and didn't have the shard issue though so could just be the odd, infrequent bad batch.