In the middle ages of Italy, Jiucheng was actually a small window for handing wine, and this method can also ensure the successful separation of sellers and customers and reduce the chance of infection. Therefore, Jiucheng was re-used in the middle ages because of the outbreak. Now this window can be used not only for handing wine, but also for selling ice cream and coffee.

Recently, a number of medieval wine windows in Florence suffered from this COVID-19 epidemic, and the wine windows that had been closed began to be reused. Let me describe to you what the wine windows really look like. After that, they are only a window that can be delivered by one hand, which means that the window is actually very small, which directly separates the sellers from the customers, which means that direct contact between the two can be avoided, and the possibility of Covid-19's spread can be avoided. The way customers pay is also very special. Generally, customers don't have to check out at the checkout counter. When they check out, they will put coins on the tray and hand them back from the window.

Then merchants will disinfect the coins immediately after they get them, so as to avoid some viruses sticking to the coins, and then collect them uniformly after disinfection. To be honest, this method can be tried in many places. After all, it can really prohibit the spread of viruses to a certain extent, which not only ensures the circulation between trade, but also reduces the risk of virus spread, so it is worthwhile.

Of course, it doesn't mean that these customers can only leave with things, because these restaurants still put some tables, chairs and benches outside, and they can choose whether to sit and eat or pack and take them away by themselves. What I want to say is that the restaurant staff should also consider the disinfection of these tableware outside, especially after a wave of people come and go, they must disinfect these tables and chairs regularly.