Canning Season.

[imp]

Originally Posted by TomNJ

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.