When I was growing up in the 1950s, my Mom, both Grandmas had on the kitchen cabinet a grease container wiht a strainer. I though Mom used to pore the bacon/pork grease into the can and the strainer removed particles. I know during WW II this was turned in, but I thought this grease was saved for later use. Does anyone remember this and where do you find those containers. Also, how long can the grease be saved?