Growing up, my Mom kept a couple old metal coffee cans under the sink.
One contained bacon fat and other shortening that solidified at room temperature. No, she didn't cook with it...when the coffee can was full, she'd toss it in the trash.
The other stored oil that she'd used for frying stuff. As a true Mom in the 1970s, we would eat homemade tempura one night, paella the next and stuffed shells the day after. Our dinner table was a cornucopia of ethnic foods. Any oil used for frying stuff was strained through a paper towel into the coffee can where it waited to be reused. At some point--when it started to smell or taste off--she'd toss the can and start a new one.
(I imagine that metal coffee cans are now collectors' items. Now I only see coffee sold in bags, plastic tubs and cardboard tubs.)
Today I was making bacon for lunch. When I was finished, pulled out a tiny (1 cup) tuperware container from my fridge and added the ~2t of bacon fat to my collection. Unlike my Mom, I use it for cooking.
It got me to thinking: Was my Mom just frugal (reusing oil) & cautious (not wanting shortening to solidify in the kitchen pipes)? Or did everyone do this a generation ago? Do people still do it?
Granted, I'm single, but at the rate I'm going it might take me a decade or more to fill a one-pound coffee canister with bacon fat and other solids. Most of the time I use the rendered fat on the spot in other cooking. Rarely do I have more than a couple teaspoons to save. And frying with oil? I used a couple tablespoons while preparing some pan-blacked salmon the other day, but I can't think of the last time I filled up a pan and honest-to-goodness fried something. Even if I did, would I save the oil after? Who knows. At the rate I fry, it might be another decade before I have another need for it and by then it would surely be rancid.
So I'm curious: Did your mom store fats like mine did? And does she still? (I'll have to ask my mom, but I'm guessing the answer is no.) Do you reuse frying oil? Save solid fats instead of pouring them down the drain?