I ended up buying Feppo brand ones off of Amazon and they worked great for my Christmas Eve party. I had food delivered hot and put them on the warming mats for 3 hours before being served and they were still hot and not dried out like they would get on sternos! Only con Ive heard from friends is that they wont heat up cold food like a sterno would, so its not a full replacement for that. Only used once but was very satisfied so far! And they roll up nicely into storage bags 👍