So if they open business normal ways again...
The hyperinflation will rocket fast like rocket
It is your fault that you take the whole world as a whole in the context of hyperinflation, so not all countries are equally affected by the effects of the pandemic, just as not all countries have taken the same economic and financial measures to protect their economies. The price of milk depends on production and imports for a particular country, and on domestic demand - and milk, like bakery products, is a product that has a continuity of demand.
I think your thesis are completely wrong, not to say that the spread of FUD does not lead to anything good. Hyperinflation has happened in some countries, it will probably happen in others - but it has much deeper roots than a pandemic that lasts just over a year.