 Wine critic Robert M. Parker, Jr., has taken a dim view of Grolleau's potential, recommending in his wine buying guide that growers in the Loire Valley should rip up all Grolleau vines and replace them with grape varieties that have more potential for quality wine production such as Gamay and Cabernet Franc.The Grolleau vine is found mostly in the Middle Loire region where it is a permitted grape variety for the rosé "Appellation d'origine contrôlée" (AOC)s of Anjou, Touraine and Saumur AOC.The grape is limited to just rosé wines and is not permitted by AOC regulations into the red blends of these regions.