How do I clean the aluminum rack for my pressure canner?
by Dianacirce70
I have a Presto pressure canner and the aluminum rack that the jars sit on is horribly discolored. Its basically black, except where the jars sit. I have tried scrubbing it, but the discoloration does not go away. I don't believe it affects the canning process any, and if caused by it, but it looks terrible and I'd like to have it silver again.
Suggested Project Book
I add three tablespoons of white vinegar to the water in my Presto caner each time I use it. It may take several times to remove what has built up. Continue to use the vinegar each time as it will keep it from building up again.
Diana,
Try bar keepers friend.
Otherwise, it’s harmless.
That happens when the aluminum reacts with minerals and chemicals in the water. It really does no harm, since your canned goods are sealed. Just looks a little bad, and only you see it, and only when you get it out to use. I wouldn't worry over it. If you cleaned it off, it would just come back, and since sanding/scouring might be the best option, and that's tedious on all those wiry parts, I don't think it's worth it. I think any product that would remove the tarnish chemically is not something you want to use on a food-prep item, as well. My rack is steel, so it doesn't turn black, but my aluminum pot does darken. I just ignore it, since it doesn't hurt anything. Maybe try a bit of baking soda in the water to alkalize it and minimize this reaction. If that makes it worse, switch to a little vinegar, very little, since the acid will surely react with aluminum. Google "clean aluminum." Are you sure it is really aluminum?