Can you use WD-40 to loosen the blades in a Mixer Grinder?
The blades in 2 out of 4 jars of our Mixer Grinder stuck within two months of its purchase and we put the jars aside as the blades stopped rotating.
I think WD-40 will do a good job (I tried it on one of them and it worked immediately), but my mother worries that it might be harmful.
Could anybody tell me if I was right and suggest the best thing to loosen them? By the way, loosening bolts with the plastic tool the company provided never worked.
Update: I should have used coconut oil or vegetable oil, but I think it attracts dust and worsens the problem if we don't use the jar for sometime.
Best Answer
WD-40 contains naphtha, hydrodesulfurized heavy; 1,2,4-trimethyl benzene; 1,3,5-trimethyl benzene; mixed xylene isomers; and surfactant, which are not for food use. WD-40 can harm/dissolve certain plastics and rubbers (perhaps used in your blender).
I think the toxicity of WD-40 is relatively minor, but essentially, WD-40 isn't food grade. Now, I know that this is not a food facility, but I would definitely opt for food grade mineral oil to prevent rancidity and rusting issues. FDA Code of Federal Regulations 178.3570 allows food grade mineral to be used for lubricating food processing equipment, and USP grade mineral oil happens to be the primary lubricant in the industry (I'd guess at least 90% of the lubrication is done with mineral oil).
CFR 178.3570 also allows use of naturally-sourced fatty acids (like capric acid, caprylic acid and caproic acid, which are more for antibacterial applications, and can/will cause corrosion issues), polybutene (maybe for electronic parts), isopropyl oleate (pricey), and castor oil (which is gummy, can become rancid, and induces cramping). The petrolatum that is mentioned is USP grade (CAS Number: 8009-03-8) which is basically vaseline; and it is only for use in "as a protective coating of the surfaces of metal or wood tanks used in fermentation process". The rest of the lubricants that are mentioned in CFR 178.3570 are not actually lubricants (more like, antibiotic soaps and chealating agents) or are simply exotic materials (even for industrial manufacturers).
So, what I'm saying (to be 100% clear) is that USP mineral oil is the only realistic lubricant allowed by FDA. Isopropyl oleate would be my second choice, but the price is going to be about 10 fold higher than mineral oil, and castor oil would be my third choice for reasons mentioned above. The rest of the "lubricants" are basically industrial-use lubricant additives (used in very minor amounts for more specific applications).
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Quick Answer about "Can you use WD-40 to loosen the blades in a Mixer Grinder?"
WD-40 is a solvent and would remove whatever was causing the blades to grind, but I would clean it out afterwards and use oil as a lubricant.How do you lubricate a blender blade?
If the cutter shaft sticks, remove the jug, turn it upside down, and spray a lubricant (like WD-40) over the blades.What should you not use WD-40 on?
There are many different types of plastic, but there are two kinds that you should avoid using WD-40 on\u2014polycarbonate and clear polystyrene plastic. Polycarbonate is a transparent plastic that is commonly used in greenhouses, and polystyrene is typically used for styrofoam and soft drink lids among other items.Is WD-40 a lubricant?
Myth: WD-40 Multi-Use Product is not really a lubricant. Fact: While the \u201cW-D\u201d in WD-40 stands for Water Displacement, WD-40 Multi-Use Product is a unique, special blend of lubricants. The product's formulation also contains anti-corrosion agents and ingredients for penetration, water displacement and soil removal.Is WD-40 the best lubricant?
While WD-40 does have some lubricating properties, it is not a good lubricant and should not be used for this purpose. Using it on anything that needs proper lubrication (bike chains, treadmills, garage doors, etc.) will not give you the results you want.The One and Only WD40 Trick Everyone Should Know and 25 Other Uses
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Answer 2
WD-40 is a solvent and would remove whatever was causing the blades to grind, but I would clean it out afterwards and use oil as a lubricant.
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