I used WD40 to remove some rust from my bicycle u-lock recently (locking mechanism). It worked very well (I put some bike lube on it afterwards). Now, I have plenty of rust on my electric hob plate. My hob looks similar to this: https://images-na.ssl-images-amazon.com/images/I/81CQ1Jot2CL.SL1500.jpg
I tried to use vinegar first, but the effect was minimal. So I was wondering if I could use the same oil for my hob?
I have the following concerns:
- Hygiene: Is it bad to use it next to food appliances?
- Heat: Will oil leftover start to burn after switching on the hob?