This item is a Hario Technica Siphon Coffee Maker, a vacuum-style brewing device.
Brewing Method: Uses heat to create a vacuum that forces water upward to brew coffee before allowing it to filter back down.
Material: Constructed from high-quality, heat-resistant Hario glass.
Components: Typically includes the upper and lower glass vessels, a stand, and an alcohol burner for heat.
Capacity: Available in various sizes, commonly 2-cup (240ml) or 5-cup versions.