Shelf Life XTol

In short, it depends. I've stored Xtol full strength in full amber glass bottles for longer than this and had it work. The storage temperature ranges from 68 to 72 degrees F. If your container is full to the cap, well sealed, and glass, it will probably work, but I would run a test roll through it before I used it for something important.
 
Xtol stored in a wine in a box bladder in my refrigerator. Worked fine 13 months after mixing.
Key points: Air free storage. Dark storage. Cold storage.
 
I store mine in amber glass bottles, and spray a bit of "Endust" into the bottle before putting the cap on if the bottle isn't full. I store it in my bedroom, and we keep the house fairly cool (68F-75F). I have repeatedly used it for up to 12 months without any problems.

I just do a simple and quick "clip test" with a clip of the film from the leader. (Develop it for roughly the regular dev time for that film, then fix it. I fix it along side with a clip of the film that was not developed. After fixing, the developed clip should be completely black, and the non-developed clip should be clear. I think there are more accurate, precise ways to do a clip test, but this is quick and easy, and so far has been sufficient to verify that xtol has not died on me.)
 
Kodak says Xtol stock lasts 6 months in full sealed bottles. Although they don't know everything about their products (for instance they told me they did not have any data about the effects on storage properties of cold storage), you can be sure that the things they do claim are very well tested. Why risk photos you put effort into getting?

Marty
 
I've gotten at least a year in amber glass bottles cpaped with phenolic resin caps and sealed with paraffin film. Strored in my basement which ranges from 55-65° F.
 
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