Food safety is important. If you eat food which is not kept correctly, you may fall ill. The fridge may be a perfect choice for keeping food safe and fresh, but it is not a magic box to keep all kinds of food. Follow these tips and learn how to store (储存) food correctly in your fridge.

Open the fridge, you’ll see different shelves (架子). They help to keep food fresh. The temperature in them can be different. Usually, the higher the shelf is, the higher the temperature will be. So if you put your food on the right shelf, your food will keep its best. Try to put ready-to-eat food like burgers, or cream cakes on top shelves. The middle shelves are the best for dairy products (乳制品), such as cheese, butter, yogurt and eggs. Bottom (底部) shelves are the coldest part of the fridge, making them perfect for storing raw (生的) meat and seafood. Some fridges have a freezer (冷冻室) for keeping these things.

Keeping food in the fridge does not kill bacteria (细菌) but it can stop the bacteria from growing fast. Bacteria can grow quickly in temperatures between 5℃ and 60℃. This is called the Temperature Danger Zone. If you want to keep your food as fresh as possible, the temperature in your fridge needs to be between 0℃ and 5℃. The freezer temperature should be below -18℃.

Fruit and vegetables can also be stored at room temperature. Make sure to keep them in a cool, dry and dark place. And also remember if the food is cut, it must be put in the fridge.

Everyone should pay attention to food safety. Hope these tips can help you keep your food fresh for as long as possible.

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You may already see robots in some restaurants. They are about the size of a child. They can welcome people and guide them to their tables. They serve food and drinks and bring dirty dishes back to the kitchen. Some have cat-like faces and even make noises when you touch their heads. But are robot waiters the future?

Robot waiters are useful. They can do the jobs as humans do. In the US, there were 15 million people working in the restaurant at the end of last year according to the National Restaurant Association. But many of the restaurant owners said they didn’t have enough workers. Robot waiters can also help save money. A restaurant owner said a robot costs around ¥15,000, but a person costs ¥5,000 to ¥6,000 per month. And the cost of human workers will continue to rise, but technology costs will fall.

The robots are increasing quickly. Sales of robots have been growing in these years. For example, a company called Pudu Robotics in Shenzhen, China, has sold more than 56,000 robots around the world. There are tens of thousands of robots now moving through eating places around the world. For example, Pizza Hut has robot waiters in 1,000 restaurants in China.

Some people think robot waiters are the future and they are well accepted by people. Some think robot waiters still have a long way to go before they can take place of humans. They cannot take orders. And they cannot walk up steps to different areas of a restaurant. The others think the robot can never take place of humans. People go to the restaurant to have the experience of being served by a human but not a robot.