Why is red sufu red?

Red bean curd is generally rose bean curd, which is a unique snack by adding rose petals to enhance fragrance. Because the rose should be red, but the rose petals added in the production can not reflect the bright red color, so a small amount of monascus powder was added. Monascus is also called Redmi and Monascus rice. Monascus pigment is a pigment produced by monascus. Because it is sensitive to Monascus, it is a kind of food pigment, which is usually used most in tofu brain.