I’m just wondering whether you always freeze your Kongs and what you put in them. I’m looking for some inspiration really. I always seem to do apple and cheese with a bit of natural yogurt to bind it together,and although Alfie is always happy to eat it I thought that he might like a change. I always freeze these as I think it takes him longer to eat and that keeps him busy while we have our dinner. For instance if I was to put tuna in it would you freeze that??