i pretty much only shoot outdated film, both color and black/white.
i process my own b/w in for about 10years now in ansco 130 dilute 1:6 or 1:10
@72ºF for about 8 min ..
i have also been doing the same thing with caffenol 130 ( .. that is caffenol c with a splash of ansco130 )
and i get very good results. even 15year old expired tmz3200 room stored ( really drawer stored )
with very little or no base fog.
expired color ...
i shot a ton of velvia that was shelf stored
kodak readyload 160
and fuji color chrome + cn ... all 4x5
it was all pro-lab processed and all came back with no issues.
i have attached 3 images ..
one was color chrome, expired room temp stored for years ...
the other tmz as previously described.
the scan is pretty much what the chrome looks like ...
the b/w is not tweaked, the base is clear ...
the last one is long expired 320 tri x 5x7 film
shelf stored. purchased for 1¢/sheet
processed in straight caffenol ( no 130 )
and there is very little if any fog
in the right circumstances i might no do a commercial job with expired color film
( unfortunately no labs left where i am to process it though )
and i wouldn't hesitate doing assignments with expired black and white.
the trick is to expect the unexpected
and roll with it