Casa Rosa's Grass-Fed Dry Aged Beef New York Steak is a "vintage" steak, meaning it comes from a 7-year-old heritage breed Charolais dairy cow. All those years of green, lush pasture contribute an incredible depth of flavor that you won't find in most commercial breeds. This steak is dry-aged for 28 days, for a further umami boost. Meaty and well marbled with a nice fat cap, this is the steak you dream about when you think of steak.