I recently noticed that the handmade brain soaps in the medical bathroom seem to sweat. They are coated with a dewy film even if no one has used them.
This led me to check if soap can expire, and yes, damnit, soap can expire.
"When it comes to natural and handmade soaps, the expiration date is usually around a year. That’s because natural ingredients can become rancid or moldy. When you buy soap from small soap makers, only buy as much as you can use within a year. In fact, some handmade soap makers recommend using their soaps within three months of purchase."
Well, damnit. Those brains lived and died utterly unappreciated by anyone but me. I think I'll buy more and store it in the freezer. That sounds smart - of course it assumes that I'll have friends over again, someday. You know, I might just buy more and leave it out for myself. I've enjoyed it.