|Frontenac blanc grapes are white-fruited mutations of Frontenac and Frontenac gris, recently discovered, in separate cases, by several growers in Minnesota and Canada. The grapes are yellow to gold when ripe (lacking pigment) and yield a very light straw-colored wine.
Given its recent discovery, Frontenac blanc grapes (and thus wines) continue to undergo testing. Grape growers and wine producers expect Frontenac blanc to display similar vine growth and disease resistance characteristics. With respect to the grape's end product, however, initial trial vinifications indicate that its wines are distinctly different from Frontenac gris in flavor and aroma - Frontenac blanc exhibits more pure stone fruit.