Besides electric, Any other simple method to remove rust?

[Bill M]

I am trying this. Seems to work well. Always nervous about using chemicals. I don't think it would hurt your koftgari unless there is rust under it. Do suggest that you submerge entire blade so you don't get a "line."

http://www.biosolutionsllc.com/evaporust.htm

You can find it for about $20USD / Gallon