NortheastPhotographic
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Maybe the phrase "shoot fresh and shoot often" is a good one.
I don't know why I have to keep saying this but again. I purchased fresh film. It arrived. I shot one roll. It had the mottling problem. The expiry date is 2022.
I attributed this to the pyro dev initially but now the problem is occuring with XTol and other developers. Bergger is replacing all my film.
Re all the quotes about 'not refrigerating' and not having a problem. Before Calumet shut down I got to tour their store in Chicago. They had a giant refrigeration chamber for...you guessed it...film. In the PDF for Kodak Portra film they go as far as to show a table for warm up times from...yup...refrigeration! (https://imaging.kodakalaris.com/sites/prod/files/files/resources/e4050_portra_400.pdf) So you may not refrigerate your film but odds are it was refrigerated before you bought it.
I would agree that refrigerating in date B&W film is probably overkill for it's storage needs, but doing so should not damage the film.
I think there is just a knee jerk forum response sometimes which is to blame the victim of bad QA.