Not just canning - there’s been a noticeable increase in interest and activity related to mushroom growing since the pandemic began. Mason jars are commonly used to colonize spawn before fruiting or spawning to bulk.
Back in February I picked up a couple bottles of multivitamins, just in case I got stuck inside eating rice for a few months. A cheap precautionary measure.
https://www.sciencealert.com/are-vitamin-pills-good-or-bad-s...