Just thought I'd share my experience. I received four batches of eggs from four different breeders. Three bubble wrapped each egg, two placed the wrapped eggs in a carton, then packed the cartons in nice and tight, the eggs were very secure in the cartons.
The one that I got where shredded newspaper was spread around the eggs (no bubble wrap), when I pulled the carton out of the box I noticed that the eggs did a lot of rattling back and forth in the carton. None were broken but I wonder about the embryo's and how they faired with all that rattling around. And wouldn't know, it had to be the shipment of Blue Orps, the most fragile embryo out there.
Anyway, I would have to say that wrapping each egg in bubble wrap then securing in a carton, makes for less wear and tear on the little embryo's. Just MHO
The one that I got where shredded newspaper was spread around the eggs (no bubble wrap), when I pulled the carton out of the box I noticed that the eggs did a lot of rattling back and forth in the carton. None were broken but I wonder about the embryo's and how they faired with all that rattling around. And wouldn't know, it had to be the shipment of Blue Orps, the most fragile embryo out there.
Anyway, I would have to say that wrapping each egg in bubble wrap then securing in a carton, makes for less wear and tear on the little embryo's. Just MHO