I've had a bottle of the old Agfa Rodinal in the fridge for quite some time, with not much left in it. I checked it today and it makes a crunchy noise when I shake it, as it's obviously got some stuff crystalized out.
I should probably just throw it away (I have an unopened bottle of the R09 replacement too), but I just wondered it if could still be used.
But I presume those crystals are of something that was important to the developer, and as it's been well sealed all this time it's not just evaporation that's led to the crystalizing.
What would you do? Would you be safe and dump it, or would your adventurous spirit make you want to try it and see if it still works?
