Do NOT put these in the dishwasher, the blue is actually a film.  This is not blue glass.  There is conflicting information on the site.  Hand wash recommended and Do not use the dishwasher. Unfortunately, I did not see the later and put them in the dishwasher.  However, it took a second run through the dishwasher to make the film completely melt off.  No where does it say this is a blue film on clear glass.  If the description stated that I would not have purchased them.  I don't believe you should be selling a product used for eating or drinking out of with a chemical film...

As always, Wayfair customer service resolved the issue for me.  That is why I purchase so much from this site.  I know if there is a problem they will resolve it.