Originally Posted by MoRoToRiUm
Never hurts to check for leakage this way; I'd still do a quick rinse with some starsan before use, if you dry it out (starsan and other no rinse sanitizers sanitize when wet; dry them out they are technically no longer sanitized). I always pressure test mine before beer hits it, just to be safe (plus I ferment in keg and jumper/bleed).
Why would they no longer be sanitized if they are dried, especially air/drip dried? The acidic solution sanitizes and coats the inside of the keg. No where in it's tech sheets does it say it is no longer sanitized.
Then, if you pump CO2 into it making it an anaerobic environment, I would say that should remain sanitized.