Q&A for How to Use a Can Opener

After each use, you can place the manual can opener under running water to clean it. However, if it doesn't dry quickly, it can rust, so dab it between a kitchen towel to remove water, then air dry standing upright in a utensil container in a warm spot of the kitchen. Another way to clean it: Fold a sheet of paper towel into a long piece. Insert this towel under the dirty part of the blade (carefully!), then draw it through to collect all the food remains; repeat for the other blade. The towel will remove the mess without the need for wetting the opener.

Anywhere. I see them all the time at Kroger, Walmart, Aldi's, etc. Most places carry them.

Try to do the best you can. If it just keeps popping off the rim of the can when you use it, push it down on the can really hard once in a while or throughout the whole process of opening it. Try not to push too hard, or you could break the can open! But if it's really too difficult, buy a new one.

The idea is to use it as long as you can, then just replace it. However, you could invest in a very small, fine sharpening stone (available at higher end woodworking stores) and then go to work with that, or a really fine jeweler's file. In my opinion, however, it's not worth the effort.