The Asobu 40oz Portable Cold Brew Coffee Maker lets you brew smooth, low-acid coffee anywhere. Designed for convenience, it features a durable, BPA-free Tritan carafe with a stainless steel mesh filter for pure, rich flavor. The double-walled, vacuum-insulated mug keeps drinks hot or cold for hours. Brew up to six servings without refrigeration and enjoy fresh concentrate for weeks. Simply add coffee, pour in cold water, and steep for 12 hours. The spill-proof design makes it perfect for travel, work, or outdoor adventures. It also works for hot coffee and loose-leaf tea, making it a versatile choice for any lifestyle.