Food wasting is often seen in China. It's reported that food waste has produced 70% of the country's increasing rubbish. Especially in restaurants, plenty of food is wasted every day. Huge food waste is usually seen in wedding banquets  , birthday banquets and business meals. However, when many people waste food, there is still a large number of people who do not have enough food to eat. Luckily, when dining out is part of everyday life, more and more people have realized packing up the leftovers  when dinning might be the right thing to do. Now here is some advice about how. When packing leftovers, take staple foods  such as steamed bread. However, leftovers of cold dishes should not be packed up, because the cold dishes can not be heated after being brought home and may go bad and cause illness. Also, leftovers should be kept in the right way after being brought home. Food should be kept at temperatures below 10 degC or higher than 70 degC.But if the packed food is put under room temperatures, they should be eaten within four hours. Packing leftovers in the right way is important, but it's more important to know how to order the right number of dishes. Don't be afraid of losing face by ordering less. After all, food doesn't come easily. What's passage mainly about?
How to save food How to pack up leftovers Food problems in China Food waste and its solution