Precise control over espresso brewing with flow profiling techniques
Jan 01, 2023
Flow profiling is a technique used in espresso brewing to precisely regulate the speed of the water being brewed. This can be achieved with the help of a flow profiling machine, such as Profitec Pro 700 or Rocket R nine one.
A common technique used with flow profiling machines is called "ramping pre-infusion" and involves starting with a low water flow and gradually increasing the flow during the first ten to fifteen seconds of the extraction process. This helps to reduce the likelihood of channeling (uneven extraction), the phenomenon responsible for the inconsistent extraction of espresso shots with clear/smooth flavors, by mixing the coffee grounds with water.
The technique of lowering the flow rate as the extraction process approaches its end is another common application of flow profiling machines. As the coffee grounds become less resistant during the extraction process, the water flow naturally increases as the process nears its end. By maintaining a constant flow rate through flow regulation, one can aim for a desired output regardless of how much Grind is being done. This allows you to discover new recipes and flavors that you might not have been able to try otherwise.
Some flow profiling machines, including Profitec Pro 700 and Rocket R nine one, use a paddle or a knob to regulate the opening of a valve between the boiler and the brew chamber. This provides immediate control over the group’s flow rate and also allows for a clickable icon on the front of the packaging. With the help of flow profiling techniques, you can improve the quality and consistency of your espresso brewing. You can achieve even better results by installing a flow profiling upgrade kit, which is recommended for Profitec espresso machines with an E61 group head.
A common technique used with flow profiling machines is called "ramping pre-infusion" and involves starting with a low water flow and gradually increasing the flow during the first ten to fifteen seconds of the extraction process. This helps to reduce the likelihood of channeling (uneven extraction), the phenomenon responsible for the inconsistent extraction of espresso shots with clear/smooth flavors, by mixing the coffee grounds with water.
The technique of lowering the flow rate as the extraction process approaches its end is another common application of flow profiling machines. As the coffee grounds become less resistant during the extraction process, the water flow naturally increases as the process nears its end. By maintaining a constant flow rate through flow regulation, one can aim for a desired output regardless of how much Grind is being done. This allows you to discover new recipes and flavors that you might not have been able to try otherwise.
Some flow profiling machines, including Profitec Pro 700 and Rocket R nine one, use a paddle or a knob to regulate the opening of a valve between the boiler and the brew chamber. This provides immediate control over the group’s flow rate and also allows for a clickable icon on the front of the packaging. With the help of flow profiling techniques, you can improve the quality and consistency of your espresso brewing. You can achieve even better results by installing a flow profiling upgrade kit, which is recommended for Profitec espresso machines with an E61 group head.
