But aren't guinea pigs supposed to have lots of harder pieces for their teeth? Really? My Kaytee hay smells quite nice, actually!
My vet said that the stiffer pieces helps their teeth more. My guys don't mind some harder pieces, not really hard, just stiffer. I use Kaytee hay, and it has always had a very strong fresh smell, and honestly, I've found very little brown bits in mine. I want to try other hay, but right now this is what I'm working with lol.