Dry ice. I never thought about it.
There is a dry ice shortage problem that is getting critical.
You probably don't need dry ice at home but it's all connected.
This is from a food warehouse correspondence :
. Meat and frozen foods require dry ice for shipment. Vaccines and other medicines require dry ice for shipment Dry ice needs are a critical factor. Dry ice production has slowed because the supply of carbon dioxide, from which dry ice is made, is down. Carbon dioxide is captured during the production of ethanol. To create new CO2 is a big expense that can take a year or two to build, so there’s not a short term solution that is an easy one.