Produced under strict supervision, all the wines from Bartenura are certified kosher for passover as well as Mevushal. This means that from the time the grapes are delivered to the winery they are handled only by observant Jews, and all the equipment used in winemaking, ageing, and bottling consists of kosher materials. The wine is also gently pasteurized to ensure its suitability for religious use. Make no mistake, these are quality wines to drink and enjoy.