haven't used xtol in a while, but i have some unmixed, unopened packets that are a at least 1-2 years old ...
anyone have an idea how long they are good for?
storage has been pretty consistant - 60-65º ...
i called kodak - the guy i spoke with suggested for at least 3 years after they were purchased ... but when i inquired a little more, he said he had no idea
any unopened-chemical-packet experience?