I think only by trying them out, maybe you could pick some cones, give them a really good rub between both palms and having a good sniff. If it smells good, they'll probably be good to use.
Bugger thought it was to good to be true. Its absolutely covered in flowers as well I thought those were the cones but sadly not. I'll be keeping an eye on it anyway as I pass it on a regular basis. You never know it might transgender.