I have to wonder if they still discourage the use of many reds for food serving pieces.<<<
A good point, they still make and sell the ruby red glasses, you see them at Christmas.
When i started rock collecting, the first thing I learned was to never lick a red rock.
LOL, we lick some of our rocks, for when wet, a rock will look like it will, if it is cut and polished.
It is arsenic that ruins most of the red rocks and crystals, as I recall.
Our rock club says never lick a green rock.