B1 4.01 - The Steam Boiler and Steam Wand - Barista Hustle
$ 44.99
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By A Mystery Man Writer
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5(347)
Product Description
The Steam Boiler and Steam Wand An Important Note on Boiler Safety: Espresso machine boilers are designed to function at a setting of between 1.0 and 1.3 bars of pressure. However, the steam temperature is well above the normal boiling point of water, which at sea level is 100° C. Steam boilers are usually set at between 120–125°C. Steam boilers are not designed to endure more than 2 bars of pressure, and the copper, brass, or stainless steel from which they are made is not usually more than 2 millimetres thick. At 3 bars there is a high likelihood of an explosion. To prevent this, boilers are fitted with an overpressure valve. These valves usually have a tamper wire
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