I don’t taste my kraut at 4 weeks as salty. That said if her sensitivity is health related for low sodium diet I doubt it would be ok. If it’s a taste thing I think it might work.Wow, glad I read your post. My wife loves kraut but can't eat most store bought because of the salt, she is very sensitive. I hear about it with every meat I smoke.
When you used the ratio you used could you taste the salt very much? If you remember, whats the smallest amount from what you looked at?