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BHM's Homesteading & Self-Reliance Forum
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Go Back   BHM Forum > Homesteading > Food > Canning/Preserving

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  #1  
Old 05-30-2010, 05:17 PM
hillbillygal hillbillygal is offline
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Default Rust on canning jars

We recently bought some used canning cars from an estate sale and have been cleaning and sorting them to be stored for future use. Some of the jars have rust on the outside where the threads are and I wondered what you use to clean the rust from the outside and if the rust is something to worry a lot about. Thanks for any input.
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Old 05-30-2010, 05:59 PM
Mom5farmboys Mom5farmboys is offline
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Quote:
Originally Posted by hillbillygal View Post
We recently bought some used canning cars from an estate sale and have been cleaning and sorting them to be stored for future use. Some of the jars have rust on the outside where the threads are and I wondered what you use to clean the rust from the outside and if the rust is something to worry a lot about. Thanks for any input.
If they are on the outside of the jar they wont affect whats inside the jars. In the past I have used an SOS Pad (steel wool) to gently clean away the rust from the threads on the jar.
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Old 05-30-2010, 06:00 PM
NCLee NCLee is offline
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As long as it's just a rust stain on the outside of the glass, and the glass is smooth, I don't worry about it.

I have a few, left over from the days before I learned to remove the rings after canning, that have those tell-tale rust stains. They don't cause any problems.

Your main area of concern is the rim of the jar. If there are any scratches, nicks, rough, even rusty bits from lids adhering, they shouldn't be used for pressure canning. Don't use a scrubbie pad or steel wool on those rims. May leave tiny scratches.

If you want to try to get rid of the stains, my first thought is to try CLR. While I haven't used it for that purpose, a lot of people recommend it.

Hope this helps.
Lee
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Old 05-30-2010, 09:28 PM
BackyardHerbals BackyardHerbals is offline
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I wouldn't sweat rust on the outside but if I was feeling overly ambitious someday I'd use Barkeeper's Friend on it. That stuff is great for removing rust and tarnish.
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Old 05-30-2010, 10:12 PM
hillbillygal hillbillygal is offline
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Thank you all for the input
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Old 11-30-2010, 09:33 PM
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paqcrewmama Female paqcrewmama is offline
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I know this post is from May but I found it whilst searching out something else and wanted to add that I had a few old jars with rust and tried the Mr Clean Magic Eraser on it and it came off! Nice non-scratch option.
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Old 12-01-2010, 09:20 AM
NCLee NCLee is offline
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Thanks for the tip. Think I'll give it a try. Got a little over a hundred 1/2 gallon jars a while back. Many of them have rusty lids and rings. Pretty sure there'll be a bunch of rust on the glass. That'll be a good time to try one, when I clean those up.

Lee
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