COLORS - Labeling in pottery.
Colors labeling: naming glass and plastic bottles or boxes has always caused problems as dampness gradually blurs the writing. Fortunately, there are now pens with inks that can mark directly onto anything and should not come off. The old fashioned way would be to stick a marked label onto the glass and then cover it with adhesive, which keeps it dry and clean. Besides labeling pots, make two trial pieces of the color, one to keep with the files and the other to glue or tape onto the lid of the jar in which the color is kept, as shown in the photo below. This is for easy recognition and to remember the exact color. Mark the pots with a code and file them, as after a while you have so many colors that it becomes impossible to remember them all.
The small photo shows the test piece glued to the lid.