Iīm not sure about that. It "was" Rodinal at a time...So now I have to drink 3 bottles of ADOX APH 09 because I told Stone if it wasn't Rodinal I will drink it
Also APH09 is far away from being garbage. If it has crystalized it is most likely a temperature issue in storage or transport and it can be remelted in a warm water bath. Rodinal (whichever version) is very well lasting.
The most modern recipe is ofcourse the most sophisticated and best. Also in the keeping properties.
R09 actually stands for "Rodinal formulation number 9". So in 1945 we were at formulation numer 9 which lets me anticipate that in 2005 we were probably at recipe change number 20. Differences are small but there were always reasons why Agfa made a change. But again this does not make the other product so bad that it couldnīt be used.
We have been quite upfront about APH09 all these years. On our website it states that this is the WWII formulation and that we use other raw materials (of a purer kind) for ADONAL. This also explains the price difference.
APH09 was our "cheap version" of ADONAL and I guess thatīs why people bought it. No?
By no means do you have to discard APH09!
Differences are existing but they are not of a kind so that you have to take this radical step!