Pressure cooker, the microwave of the way back in time... My wife, deceased, was a proud graduate of San Luis Obispo state college and majored in home economics with a minor in microwave cookery we were married later where she was working as a bank teller, long story,
One evening I suggested beef stew and she said it would be quicker in the microwave and I said pressure cooker was faster, then it was bet me!
I'm a pretty good cook in my own right so i said we'll race and divided the fixings fifty fifty and said go!
The pressure cooker won, she was amazed and I asked her if the college ever showed them how well they worked, she said they'd never mentioned them.
Point being po folks used slow cookin and pressure cookers a lot to make tough food palatable. My mom used to get stewing hens for cheap and make great chicken and dumplings, you haven't seen tough until you try fried stewing hen.