Originally Posted by jcat
Actually, many people recommend that you not leave it out for more than 15 to 30 minutes, as it can spoil quickly, especially in warm weather. I have a "nibbler", too, and leave it out for 2 or 3 hours, though, provided it's cool in the house.
I leave it out until it's gone (about 2 hours). Between the 2 cats they manage to pretty much eat it all in that amount of time or less.
Our climate is not extremely hot so I personally think 15 to 30 minutes may not apply here. Not only that, I've never been blessed with a cat that would eat on demand, i.e., set meal times.
Any cat I've ever had pretty much eats when it felt like it rather than when I wanted it to eat.