The famous grilled balut is safe to consume

"Grilled Balut" has been circulating online and if you have not yet tried it and are scared that it is not safe  well it is indeed safe.

When the hard-boiled, grayish-green circle forms around the yolk of the egg, the smell of eggs can occasionally be off-putting. Overcooked eggs are still safe to eat, according to these specialized food experts from the Philippine Association of Food Technologists.

Because there is so little hydrogen sulfide produced by the grilled balut eggs, according to these food technologists, they are safe to consume. The Philippine Association of Food Technologists' blog post by Carl Baluyut, GD Canapi, and Jomi Rodriguez claims that a single egg cannot produce the quantity required to pose a true health risk. One egg contains only 0.2 parts per million (ppm) of the chemical, as opposed to 100 ppm, which is the amount that can "cause dangerous effects on health and life."

“While the explained science in the [post about the grilled balut] is true, the conclusion was taken out of context," the post said. "The proteins of the egg whites contain sulfur that reacts with hydrogen during the heating of eggs, resulting in the formation of H2S. Although a known toxic gas, especially during exposure at moderate to high concentrations, H2S is released in such small amounts that it cannot pose any health risks.