My friend’s jars were already cleaned, but I have read that it can be a little difficult to remove the label and the glue around where the foil lid was. Some have found soaking them for 30 minutes worked. Others report using Goo Gone, and an emery board on the lip will remove stubborn glue there.
I had watched some tutorials that just seemed too time consuming or I know wouldn’t work for me (coloring the inside of the jar, or spray paint, or painting it on are a few techniques that come to mind.)
I have painted glass with a special technique and baked it before with excellent results, but I have also skipped the baking and used what I call my magic finishing spray and the finish becomes as hard as rock and passes the scratch test even before curing. My magic spray is shown in the photo above: Mod Podge Pearlized Sealer. I usually purchase mine on Amazon. It is hard to find in craft stores.
This technique I’m using here has worked for me so well when using chalk style paint on glass (and metal) I thought it should work well with Mod Podge and food coloring. And it did!!!
If your jars are free of glue and have been washed thoroughly, it is time to create some faux depression glass! Here are the supplies I used: