(Spokesman) - Roger Batt, lobbyist for the Idaho Grape Growers and Wine Producers, told the House Revenue & Taxation Committee today that Idaho wineries were surprised last August to receive a letter from the Idaho State Tax Commission, telling them go through their records going back three years, to see how much they'd given away in free product at wine-tastings, and pay sales and use tax on that amount. They were stunned, he said.