The cream in the middle of the cheese bag turned blue.

Does the subject want to ask "why does the cream in the middle of the cheese bag turn blue"? It is the pigment in the cream that exceeds the standard. According to the food network, the cream in the middle of the cheese bag turned blue because the pigment in the cream exceeded the standard. Cheese bread is a delicious baked dessert. The main ingredients of bread are high flour, sugar, yeast, salt, eggs, milk and butter, the fillings are cream cheese, milk powder, powdered sugar and milk, and the bread body is covered with milk powder.