Baked sweet potato Tik Tok what stem?

It means: Some people were admitted to Tsinghua, others were admitted to Peking University, but they were admitted to sweet potato. The same admission, but different in nature.

In the past, stoves selling roasted sweet potatoes were made of large cylindrical petrol cans. Make a round mouth on it and make a lid. Generally, there are two grates in the furnace, both of which are made of iron bars.

The lower layer is used for baking raw sweet potatoes, and a space is left in the middle of the upper layer, and the baked sweet potatoes are taken to this grate for heat preservation. The lower floor of the stove is a coal stove.

Some separate the coal stove from the "steamer" above and sit on the upper floor after making a fire. Because the sweet potato itself has a high sugar content, there is no need to peel and cut into pieces, nor to put any seasoning, nor to prepare bowls and chopsticks. You can eat it as long as you wash it and bake it. Therefore, selling this kind of cooked food can be opened with a scale, or even without a scale. The price directly depends on the size of the sweet potato.

The fuel for baking sweet potatoes is coal. But in the past, we didn't use coal well, but used the "coal core" that others used but didn't burn completely. This kind of coal core is all picked out from furnace ash. In the past, "picking coal" was a common practice for poor children.

Baked sweet potato sellers buy or exchange cooked sweet potatoes at a much lower price than coal. If there are children picking coal at home, even this cost is saved. Using briquette sweet potato not only has low cost, but also has no smell of coal smoke, and the temperature is also very suitable, which can be called a "good quality and low price" choice.

Although baked sweet potato is a street snack, it can also satisfy hunger, and the price is very low. In the cold winter, many passers-by will buy a few pieces when they see the steaming oven and think of the color and sweet and soft taste of the red skin and yellow meat.

Young women and children love to eat more, and some even buy them home to satisfy the old people who don't go out often. This kind of food called "toothless music" is really popular when you are 70 or 80 years old.