Yeast has been the 1 I could not understand. The only thing I can think of is bread was gone along w/ TP, and cleaners so early on, but we got more bread back. All I can think of is that motivated people to hoard yeast. I think it is smart to keep a good supply of what you typically use on your shelves, but some people do not realize things like yeast, spray cleaners, and bleach do not have a long shelf life. A lot of people will waste it if they don't give it away. " Unfortunately, the average shelf life of liquid bleach (being stored between 50 and 70 degrees Fahrenheit) is around 6 months. After that, bleach will lose 20% of it’s strength at around the year mark and then 20% each year after that."