(DesmoinesRegister) - The drought may give wine aficionados a rare gift this holiday season. Iowa grape growers and wine experts say hot, dry weather has concentrated the grapes’ flavors, which will lead to unusually tasty reds and whites. “The quality of the crop is fantastic,” said Mike White, a viticulture field specialist at Iowa State University. “It’s some of best that I’ve seen.” But some shadows have fallen on the vines. A frost in April killed much of the grapes. The drought also produced smaller fruit. White predicts the volume of the grape harvest will fall by 30 percent.