I started my first batch of muscadine wine today. After processing the grapes, adding the sugar, and adding water to get the ph right i had a nice rose colored must. but after adding 1 teaspoon per gallon of yeast nutrient, 1/8 teaspoon per gallon of pectic enzyme, and 1/16 teaspoon per gallon potassium metabisulfite the must turned to a grayish color. is this normal? thanks