The Crémant d'Alsazia needs strict attention during production attention during productionattention and continuous monitoring. The grapes are carefully selected, free of impurities, and then stored in the press, respecting the "press method, in compliance with the "Champenoise method". After the first traditional fermentation in steel tanks and in temperature-controlled steel tanks, the second fermentation takes place in the bottles. We are witnessing the 'foaming' process. This natural process must be followed carefully so that, in every single bottle, the right result is achieved. It follows the aging period to end with the remouage and final disgorgement for a total of at least 18 months of sur lie stay. The balance and freshness of Gustave Lorentz Crémant is due to the skilful choice of three grape varieties: Chardonnay, Pinot Noir and Pinot Bianco.