The used oil can be filtered through a paper towel or cheese cloth-lined kitchen strainer resting on a clean pot or container. This method quickly clogs the pores of the paper towel with pieces of fried bits so that the oil strains through very slowly and it wastes time.
Using two strainers worked better but it then became a two person job. My wife would hold the extra strainer over the first while I poured the oil through. It was just awkward and time-consuming. There had to be a better way!
MY SOLUTION: Using cheap strainers and round food storage containers from the dollar store I made a 3 stage oil strainer that can be used by one person.
Step 1: Materials you will need
Round food storage containers sized to fit the strainers. These will be used as spacers between the strainers. If you use 2 strainers you need 1 container. 3 strainers requires 2 containers. The container tops are not used.
* The containers must fit into the strainer frame without slipping all the way through. The frame of the strainer must hold the container, not the mesh. The curve of the bottom part of the container makes all the difference. Make sure to have the strainers with you when you buy the containers to properly size them.
Sharp knife to cut out the bottoms of the containers.
Cutting board as a work surface.
Step 2: Create the spacers.
I briefly heated the tip of the knife to pierce the container and start the cut. This kept the container from cracking.