I am using Iodophor as my no rise sterilizer. Is this a safe sterilizer and because it doesn’t breakdown like other no rinse sterilizer won’t it affect the flavor profile of the beer?
Potentially it can. However, at the recommended dilution level, and if you drain the sanitized equipment well (i.e. not leave puddles of sanitizer) the impact on flavour is not perceptible. Especially for stongly flavoured beers.
That said, I'd recommend using starsan wherever possible. Not only it's a true no-rinse, but it has smaller surface tension, which helps it to spread like a thin film on plastics, which results in better sanitation. It's not safe for aluminium, though, and that's exactly where I still use iodophor.