Why is the price of US white bread up 13% during the pandemic?

While many Americans made their own bread at home during the COVID-19 pandemic—nurturing sourdough starters—retail bread prices were steadily rising, US Bureau of Labor Statistics (BLS) data of prices in urban areas show. While all white bread prices have risen 3.2% from January 2020 to March 2021, prices of pan white bread—the ubiquitous, rectangular on the bottom round on the top loaves—soared 12.95%. Pan white bread prices in the northeast increased 27.4% from January to June 2020.