Multiple choice Retrogradation is undesirable _______. in any food mixture when a mixture thickens as it cools when it causes syneresis with foods that will be frozen Reveal answer Fill a bubble to check yourself C Correct answer Explanation Retrogradation is the realignment of starch molecules. While sometimes useful, it is undesirable when it leads to syneresis, which is the weeping or leaking of water from the food matrix.