[mmarq]

The causes of the lockdown shortages are cultural, toilet paper disappeared in Northern European and English speaking countries, while in Italy (and I think in some places in Spain) yeast could not be found.

[djrogers]

Yeast and flour were gone in the US as well (at least where I live).

[ajsnigrutin]

yeast was hone in slovenia too...

People were afraid they won't be able to buy bread, so they bought flour and yeast... then bought bread, and eventually threw away the yeast.

[macrolime]

Yeast also ran out in Northern Europe.