Casa Firelli Italian Hot Sauce. Firelli is a hot sauce from Italy. Bottle Size: 148ml. Made from Italy's finest ingredients including Calabrian Chilli Peppers and Balsamic Vinegar. Ingredients : Roasted red peppers (origin Spain), water, ‘Aceto Balsamico Di Moden IGP’ 12% (wine vinegar, concentrated grape must), apple vinegar, Calabrian chili peppers 6%, concentrated lemon juice, sugar, natural flavors, salt, spices, dried Porcini mushrooms, thickening agent: Xanthan gum, garlic.