Family permeates everything at Loew Vineyards near Libertytown. Rachel Loew Lipman is a fifth-generation winemaker and meadmaker who oversees the operation. She said she hopes to pay tribute to the vineyard that bears her grandparents’ name by becoming the first certified kosher — in line with Jewish law — winery in the state of Maryland. William Loew and Lois Loew, Rachel’s grandparents, sold ...