Trying to keep that temperature stable in that range used to be difficult for a single boiler, and still is. Great tasting coffee is best brewed between 93☌ to 96☌. How La Marzocco and the Dual Boiler Changed Things This control is given to baristas by temperature stability. Using higher temps can be used to compensate for an underdeveloped roast while lower temps can be used to overcome the high solubility of an overdeveloped roast. Increasing the temperature can be used to increase the extraction yield of a slow, dripping shot. Therefore, being able to keep the temperature as stable as possible gives the barista more control over the flavour of the espresso.įor example, Lowering the brew temp will enhance acidity in coffee and raising the brew temp will decrease acidity in coffee. This is because the temperature, even at the slightest of changes, can make a huge difference to the end product. So why does improving the temperature stability during the brewing process even matter? Baristas and engineers have spent countless hours working on machines to improve this so it’s importance can’t be understated. Temperature Stability When Brewing Espresso This changed the way that espresso machines could control the temperature stability of the water. This really changed the way a lot of baristas made coffee and still make coffee to this day. They really cemented their reputation as an industry leader however after the introduction of the dual-boiler GS series in 1970 as mentioned above. This includes the first espresso machine with a horizontal boiler, which, in comparison to the previous vertical structure, organised the brew groups in a horizontal fashion, which provided efficiency for the barista and an opportunity to engage with customers. They have been trendsetters in the industry, being the first company to produce a variety of industry-standard machines. Today, La Marzocco equipment are widely used in speciality coffee shops.Ī historical Italian maker of espresso machines, its products are consistently considered in the top rank. The brand was founded in 1927 in Florence, by Giuseppe and Bruno Bambi and has traditionally specialised in producing high-end professional espresso coffee machines. In 1970, Giuseppe Bambi from La Marzocco developed the GS machine, the first double boiler machine with a dedicated steam boiler and brew boiler, allowing for even greater temperature stability and increased volume potential. This brings us to the biggest achievement of La Marzocco. That machine was called FAEMA E61 and we have one of those beauties on display in our training room. This technology was arguably the most important advancement in espresso-making to date. In 1961, Ernesto Valente invented a machine that used a mechanical pump to create a consistent nine bars of pressure and a heat exchanger system that helped create a more stable brewing temperature. Allowing the machine to apply more pressure during the brewing process. Over time, engineers continued to innovate. This took espresso global, making it a widely popular drink across the world. Pier Arduino built a genius marketing campaign depicting well-dressed society men and women enjoying espresso beverages. There were numerous Italian engineers who made incremental changes to the espresso machine over time, but one of the biggest changes wasn’t through technology but through marketing. Bezzera and Pavoni introduced their “cafeé espresso” machine at the 1906 Milan fair. The first inventors to achieve some commercial success were Luigi Bezzera and Desidero Pavoni, who created a vertical boiler machine that brewed a single cup of coffee, made to order in a matter of seconds. Inventors started to apply steam technology to the brewing process to improve speed and the quality of the coffee. In the nineteenth century, coffee was a booming business in Europe, but brewing it was a long and messy process. Let’s take a look at what sets apart these machines from the rest and how they have innovated in the past. To the untrained eye, it may not be immediately obvious why they’re so good and why they are trendsetters in the coffee world. We really think they help make some of the best espresso possible alongside some good barista skills. It’s very clear here at 80 Stone Coffee Roasters that we love a good La Marzocco coffee machine.
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