These viruses may not be eliminated in a short time, so it is easy to enter food at this time. If stored at a lower temperature, the virus is likely to survive for a longer time. These live viruses will still exist in sandwiches when they reach consumers, so it is easy to cause further infection to a greater extent.
Sandwiches, in particular, are cooked food. You can eat them when you open the bag. We don't need to reheat them. At this time, if it still has virus residues, the chances of being infected are very high.
So Britain may not have done enough in this regard until more than 300 people were diagnosed as positive. This is a fatal problem. Before that, someone might be infected, but no one in the whole workshop knew about it.
And those sandwiches that have been produced are still being sold to every household. The epidemic is so serious now that no one knows how serious the consequences of the sandwiches sold before will be.
A consensus should be reached in areas with serious epidemic situation. First of all, all kinds of disinfection are essential. This is especially true for the industrial chain that produces food. All personnel should wear protective clothing and masks tightly, so as not to leave the possibility of infection on food.
Food should be disinfected uniformly before leaving the warehouse, such as ultraviolet rays or ozone, so that it can be fully disinfected before leaving the warehouse. After leaving the library, there should be a special person in charge to check his physical condition regularly.
A little negligence in food may be more harmful than other industries, so we must not be careless in this respect.