I guess it is mostly due to hydrogen sulphide in onsen water that reacts with iron in the egg shell...not very sure though...
svrkprabhakar 2 years ago
Why does the egg shell turn black?
cognizant 2 years ago
I guess it is mostly due to hydrogen sulphide in onsen water that reacts with iron in the egg shell...not very sure though...
svrkprabhakar 2 years ago
Why does the egg shell turn black?
cognizant 2 years ago