50 oz Cold Brewed Carafe makes rich, delicious full bodied coffee concentrate that is 65% less acidic than hot brewed coffee. This carafe makes 16 cups of prepared iced coffee and will last up to 14 days when stored in the fridge. The glass carafe is made of borosilicate and can withstand extreme temperatures without risk of cracking. The base has a silicone ring around the bottom for secure grip to table or side of the fridge door. Borosilicate glass carafe, Stainless Steel Brew Core and Flavor Mixer. Comes with 2 MyBev cores.