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Cleaning Cast Iron

 
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Wallaby
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Joined: 22 Apr 2008
Posts: 101

PostPosted: Thu Sep 10 09 7:35 pm    Post subject: Cleaning Cast Iron Reply with quote

There are several ways to clean rust/crud off of cast iron cookware.
1. Scrub with steel wool. Most work involved.
2. Use a wire wheel . Can damage CI.
3. Lye, soak pot in a lye bath then wash. Be very careful lya is caustic and is iron is left in to long it will be destroyed.
4. Spray oven cleaner. Spray pot with cleaner, place into garbage bag tye shut and put out in sun. Let set till crud in soft.
5. Self cleaning oven. Run pot thru the cleaning cycle, be sure to inform wife because there will be lots of smoke.
6. Throw in hot fire, not recommended because you can warp some CI.
7. Electrolysis. Get a large container, plastic or stainless. Fill with water. add washing soda, mix to dissolve. Take a scrap piece of iron put into tank, attach the positive lead from your battery chager to this piece , hang pot to be cleand in tank and attach negative lead to it. Plug in charger, you should get bubbles of hydrogen gas. Rust will move from pot to scrap iron while removing all other crud. Do not use any scrap iron that you do not want destroyed as this process will dissolve it. Stainless works best and will last almost forever. I find that this is the easiest way to clean because you just turn it on and walk away.

After cleaning, wash well, dry, make sure you season it right away. Everybody has their way of doing it so I will let them tell you.

Make sure to clean any cast iron that you get at feamarkts etc. You do not know what has been in it from food to catching the old motor oil from their car. So clean and season just to be safe.

Mike
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BBQ Pro Smoker
BBQ Pro converted to cold smoker
Perfect Flame Gasser
1986 Webber 22"
Wagner and Griswold Dutch ovens
CI pans everywhere


Last edited by Wallaby on Fri Sep 11 09 11:39 pm; edited 1 time in total
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jess
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Joined: 26 Sep 2007
Posts: 1781
Location: Fl.

PostPosted: Fri Sep 11 09 11:05 pm    Post subject: Reply with quote

Just a couple points on using d.c. to transfer rust. First it really only works line of sight from metal to metal so I use a pc. of 6"6" reinforcement wire around the inside of a container. Also using s.s. is dangerous as it releases toxins. Also important to use this method in a well ventilated area as it does release hydrogen & oxygen gases. A small project is not bad but the gasses build up in say a closed or ac area. Hydrogen is very explosive & oxygen is an acellerant.. JM2 cents...
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Wallaby
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Joined: 22 Apr 2008
Posts: 101

PostPosted: Fri Sep 11 09 11:23 pm    Post subject: Reply with quote

Looks like the deposits into the water a low enough to not be a problem unless you work with it everyday. This seems to give a good explanation.

http://users.eastlink.ca/~pspencer/nsaeta/electrolysis.html

Mike
_________________
UDS
BBQ Pro Smoker
BBQ Pro converted to cold smoker
Perfect Flame Gasser
1986 Webber 22"
Wagner and Griswold Dutch ovens
CI pans everywhere
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