Petrus Cherry Chocolate Nitro Quad …… a new twist on the bold Petrus Nitro Quad. The starting base Petrus Nitro Quad is brewed with 6 different varieties of malt. Premium cherry and chocolate flavor are added forming a rich, complex taste……malty, sweet, and spectacularly balanced. The 8.5% ABV, doesn’t overwhelm, allowing it’s rich flavors to be front and center.