Thread: Canning Season.
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Old October 16, 2017   #226
imp
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Location: Wichita Falls, Texas
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Originally Posted by TomNJ View Post
Worth, unless your hydraulic fluid is food grade from a reputable supplier I'd be careful. You are correct that hydraulic fluids generally do not contain detergents and dispersants like motor oils, but as a former lubricant chemist and formulator I know they generally do contain some combination of anti-oxidants, anti-wear, anti-rust, anti-corrosion, and anti-foam additives, some of which may be somewhat toxic. Also most are based on Group I mineral oil which is not sufficiently refined for human ingestion. Food grade white mineral oil without additives would be a better choice, such as that sold for constipation.

Tom
Thank you for the information, Tom. Potentially toxic things in contact with food surfaces that stays on the object = not good , for me. I'll make sure to use food grade on my butcher blocks and such.
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