The Hario Coffee Siphon Sommelier SCA-5 is a professional-grade coffee brewing system designed for precision extraction. This Japanese-made siphon coffee maker features a 150 mm diameter lower ball with an overall height of 195 mm and weighs 600 g. Constructed from heat-resistant glass and silicone rubber components, it delivers consistent brewing performance through vacuum pressure principles. The SCA-5 model is engineered specifically for the Japanese market, resulting in interface language exclusively in Japanese without alternative language options. The electrical components are configured for Japanese voltage standards at 100V, requiring a voltage transformer for use in other regions. Hario's siphon technology allows for precise temperature control during the brewing process, typically maintaining optimal extraction temperatures between 92-96°C. The heat-resistant glass construction ensures thermal stability while the silicone rubber seals provide airtight performance for proper vacuum operation. This coffee siphon system utilizes the traditional two-chamber design where water vapor pressure forces hot water into the upper chamber for coffee infusion, then creates a vacuum to draw the brewed coffee back through the filter into the lower serving vessel. The SCA-5 model represents Hario's commitment to coffee brewing precision, building upon their established siphon coffee maker legacy with refined materials and engineering. The glass components are designed for repeated thermal cycling while maintaining clarity and structural integrity. This brewing method produces coffee with exceptional clarity and flavor profile definition, making it suitable for coffee enthusiasts seeking laboratory-grade extraction control. The complete system includes all necessary components for traditional siphon coffee preparation following professional brewing standards.