About two years ago I came across a sealed bottle of Rodinal that I purchased in 1967. Gave it a try .... it was just fine. No "rocks."
Shel > [Original Message] > From: Frantisek > One thing I am curious about Rodinal and its copies... > > Īt's the shelf life. I have read that Rodinal in cold storage can keep > for a long long time (they found some on the frozen lost expedition > into Antartcica, after 100 years it still worked...). And that has > been my experience as well, that it kept for long. But sometimes there > form hard rocks or something inside... what is it?