Bread doesn’t rot, it molds. Whether mold can grow depends on the conditions it’s kept in. The ingredients are availble to the public, the only preservative in the bun is calcium propionate which you’ll find in just about any other baked good on store shelves.
That doesn’t explain the untarnished bun.
Bread doesn’t rot, it molds. Whether mold can grow depends on the conditions it’s kept in. The ingredients are availble to the public, the only preservative in the bun is calcium propionate which you’ll find in just about any other baked good on store shelves.