Check the listing for details. GrowlerWerks uKeg Nitro Cold Brew Coffee Maker 1.5L / 12 Cups NO ACCESSORIES. Color: Silver, Condition: Used, Made in China. Listed at 50.00 USD. The GrowlerWerks uKeg Nitro Cold Brew Coffee Maker is a stylish and compact coffee maker that can brew up to 12 cups of cold brew coffee. With its sleek silver design, this maker is perfect for both home use and on-the-go travel. Made by the trusted brand GrowlerWerks, this model is known for its high-quality construction and easy-to-use functionality. Whether you're a coffee enthusiast or just looking for a convenient way to make your favorite cold brew, this coffee maker is a great choice.