How to adjust the flow rate of espresso what is the flow rate of espresso?

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Introduce the calculation of traffic in E61 sets of machines

Dalla Corte, Dalla Corte, Mina, ECM, ECM, synchronization, flow control, flow control, flow rate

Flow control is the latest trend in espresso. It is a tool to help you get more from your coffee by extracting specific flavors, aromas, your favorite coffee and nuances, it is now easier in prosumer-level household coffee machine manufacturers including Profitec and ECM, and other high-end home and business machines Dalla Colt University Mina. If you've been looking for more details on how to determine your traffic on E61 machines, you've found the right place. We'll use ECM Synchronika and Dalla Corte Mina to discuss how we use real fresh coffee on these machines to determine our traffic, but first, let's give you a brief description of what you can do with flow control.

Flow control allows you to use the flow rate of water to adjust the taste and aroma of coffee. If you have very fresh coffee, you can use flow control to let it release gas and control the brightness of the coffee. If you are drinking old coffee, you may want to drink a lot at the beginning, and then gradually reduce the amount of drinking to improve the taste and prevent the extraction of aged and oxidized compounds. You can also use flow analysis and adjust the flow rate to meet a specific baking level. For example, you can add a mild prefoamer to a lightly roasted coffee and a more aggressive prefoamer to a deeply roasted coffee. Another impressive feature is the ability to copy the extraction features of manual levers and pressure profilers. If you like the occasional filter coffee, you can grind it down and use low flow to turn your machine into a single-service filter coffee machine. As you can see, process control opens up a new world full of possibilities, where you can use the right variables to make your favorite coffee the way you like.

Now that you have a better understanding of flow control, let's talk about traffic and how we adjust it during the extraction process to find the best point. Take Mina as an example, it can be easily programmed by digital traffic and timing functions on Mina app, which can be completed in five steps. Then, the digital Flowmeter in the machine is responsible for the rest of the work. However, if you are using an E61 flow control device, here is how to determine the flow.

Set the flow control to 6 different locations and measure the output for more than 20 seconds. Measure 1/8 laps, 1/4 laps, 1/2 laps, 3/4 laps, one complete lap, and then one 1/4 laps. In this measurement, we use a scale to measure accuracy, which is easier to calculate, but if you don't have a scale, you can measure the liquid volume of coffee. From here, let the brewery water run at each position for 20 seconds, then divide the total weight (g) by 20. If you are using volume, use milliliters to get the flow at each position (g / s).

Our measurements range from 1.5 grams per second to 1 / 8 to 11 grams per second. By calculating these measurements and following this formula, you will know how to turn on the flow control knob to get the desired flow.

If you are using very fresh coffee, here is an example of how to get the best results from coffee. This article is from Danilo Lodi, a judge of the World Barista Championships, who took some incredible pictures with fresh coffee. Recently, we met Danil at the George Howell Cafe (George Howell Coffee) in Boston, where he took some impressive pictures on Mina with George's Kenyan coffee (George's kenya). How this is done. One is Mina, which programs the profile and Flowmeter, and the rest is processed by the machine. If you are using E61 machines, now that you have calculated the desired flow rate location, you can do the same. For our traffic, we calculate 1 / 4 turn for 60 seconds, and then 1 / 2 turn for less than 5 seconds. Then we reduced the flow and completed more than 1/4 laps of extraction. We use ECM Synchronika, which has an automatic shooting timer, so how simple and convenient it is to get accurate timing, we just need to pay attention to the timer.

This method works well for super fresh coffee because it gently releases carbon dioxide and reduces the bitterness of the coffee. By keeping the current flat and ending at the beginning, this helps to extract the sugar and taste of the coffee, really creating a sweeter aftertaste.

This is just an example of how you can use flow control to improve extraction and how to calculate measurements to achieve the traffic you want. There is still a lot of discussion about flow control and flow analysis, so please follow more blogs and videos on flow control, including sections using different brewing methods. Before that, check our entire collection of machines with flow control ranges from ECM classic single-boiler machines, heat exchange and dual-boiler machines, of course to Darla Corte Mina.

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