THE ENGINEERING BEHIND THE KNOCKOUTThe Problem: When you chug a bottle of beer there's no way for air to flow in to relieve the pressure.This results in CO2 bubbles being released very quickly, creating turbulent beer flow.The Solution: With The Knockout, that pressure is relieved, allowing beer to flow down quickly and in a smooth laminar flow. HOW DOES IT WORK?The Knockout is designed to direct flows in all the right directions.The stainless steel straw channels air into the bottle while you chug.This counteracts the vacuum that is created when beer leaves the bottle.The silicone mouthpiece channels beer into your mouth.The result is ... an incredibly satisfying beer chug. THE MATERIALS BEHIND THE KNOCKOUTStainless Steel (304 Grade)Reason For Use: Strong, easy to clean and corrosion resistant.Interesting Facts: 304 stainless steel is the most common stainless steel. The steel contains both chromium (between 18–20%) and nickel (between 8–10.5%) metals as the main non-iron constituents. It has a higher corrosion resistance than regular steel and is widely used because of the ease in which it is formed into various shapes. (Source: Wikipedia) Silicone (Food Grade) Reason For Use: flexible, shape-memory, and low friction coefficient.Interesting Facts: Low thermal conductivity, low chemical reactivity, low toxicity, thermal stability (constancy of properties over a wide temperature range of −100 to 250 °C), and the ability to repel water and form watertight seals. (Source: Wikipedia) 
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