MHW-3BOMBER Energy Tube Set The MHW-3BOMBER Energy Tube Set is a stylish and practical single-dose coffee bean storage system designed to keep beans fresh and streamline the brewing process. The set typically includes eight individual tubes with one-way exhaust valves, a high-quality walnut wood base, and a metal funnel. Key Features and Design Airtight Seal and One-Way Valve: Each tube has a lid with a silicone seal and a one-way exhaust valve. This mechanism automatically releases CO₂ (which fresh beans naturally release after roasting) while preventing external air and moisture from entering, thus preserving optimal flavor and aroma for longer. Single-Dosing Efficiency: The system is ideal for single dosing, allowing users to pre-portion 20 to 26 grams of coffee beans into each tube. This preparation streamlines the daily brewing workflow, eliminating the need to weigh beans every time and reducing waste. Durable and Portable Materials: The tubes are made from food-grade PC (Polycarbonate) and PE (Polyethylene) materials, which are described as being as strong as glass but more durable and not easy to break. The individual tubes are portable and suitable for travel or camping. Elegant Design: The set comes with a base made of North American walnut wood with anti-slip pads, giving it a premium, elegant, and organized look on any coffee bar or countertop. Some reviewers note its biomimetic design inspired by piano keys. Versatile Storage: Beyond coffee beans, the sealed tubes can also be used for storing other dry goods like high-end tea leaves or spices. Product Specifications Attribute Detail Brand MHW-3BOMBER Material PC, PE, Silicone, Walnut Wood, Iron Capacity per tube 20-26g of coffee beans Tubes per set 8 Total Weight Approximately 1085g Included Components 8 tubes, 1 wood stand/base, 1 metal funnel/hopper Care Instructions Hand Wash Only (tubes are not dishwasher safe)