Tianjin canteen contractor has a different price, and also have different conditions, what is their own form of contracting, these are issues to be aware, a person is contracted when to pay attention to each other's responsibilities constraint and then there is one aspect, it is to let them reach a certain profit-driven, and only in this way will allow them to contract when the two sides reached a win-win, and if they can not notice these problems, it would allow canteen prone to problems . Although the brand at the time of purchase, the price has improved to some extent, but using play to make their own peace of mind.