I have two boxes of grade 3 Azo that I have had for about 8 years. One was stored frozen for about half that time and I brought it out when I started to get fog on the perimeter of each sheet in the other box. I was sorry to see that the box which had been frozen shows the same fog. I have other boxes of Azo much older that print with no fog at all. I'm wondering if there is a problem with Azo made in the early 2000s. I think both of these boxes were purchase in 2003 but the markings on the boxes that would tell me for sure have been lifted off by tape i was using to secure the lids. I will try to attach a scan of a sheet that was taken straight from the box and developed. The fog is very visible on the perimeter of the sheet.
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