How to tell if a tube of oil paint is too old?
After a long (15+ years) health imposed break from painting I've been painting again, though with watercolors not oils, for the past 2 years. Since I still have my oil paints from long ago ( they are probably in the 20 year old bracket ) I was wondering if they were still usable and how I would be able to tell. Does anyone have any tips? I'm ready to start practicing with oils again and would like to use them instead of buying a new set if possible at this point.
Pat
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