I have use 3 time only so far but absolutely no problem . the instruction say to put a little oil at the bottom before rice & water so that it will not stick or burn , I do this the first 2 time and no sticking or burning , but I forget the oil the 3rd time and it do burn the bottom , nothing that a 10 minute soak do not take care of . so far I be happy with this little cute and cheap machine .