So I was wanting to date stamp my eggs for when i give to friends and family they will know how long they are counter-stable. I was looking at food grade ink when i saw this site. Anyone have thoughts on this? Seems over-cautious but i can't find anything else out there on the topic about not using rubber stamps on the eggs....
https://www.authenticheirlooms.com/tag/food-grade-ink/
https://www.authenticheirlooms.com/tag/food-grade-ink/