What is flow control on a coffee machine?
Flow control is all about controlling the flow rate of water during pre-infusion and during extraction as water passes through the coffee puck. By controlling the flow rate of water, you have the ability to bring out all of the nuances of your coffee. For example, we should aim to extract 36g of liquid espresso from the 18g of ground coffee in 30 seconds, giving us our target ratio of 1:2. Don’t be afraid to try different coffees or big changes in your ratio style, but when you find a coffee you like, stick with it for some time!Tamping too hard can mean that the water can’t flow through your puck as easily. This slows things down, which can lead to over-extraction, slower brewing times, and a less optimal output. When you tamp, you’re compressing the grounds and eliminating air. Once all of the air is gone, further tamping isn’t necessary.If you tamp unevenly, leaving the coffee puck fractured or not putting sufficient pressure, your extraction will result in poor quality espresso.Flow rate directly shapes espresso’s balance. Maintaining a flow rate between 1. If the flow exceeds 2.
Which valve is best for flow control?
Globe valves are the most commonly used type of flow control valve. They regulate the flow of liquid by controlling the distance between a plug and seat in the valve body. The plug gradually moves closer to or away from the seat depending on how much pressure is applied to the valve. Key Takeaway. Flow control in valves can be categorized into three main types: manual, automatic, and proportional. Manual flow control requires a user to physically adjust the valve to regulate the flow rate. This method is simple and cost-effective, but it lacks precision and can be inefficient for dynamic systems.
What is the order of control flow?
Control flow is the order in which the computer executes statements in a script. Code is run in order from the first line in the file to the last line, unless the computer runs across the (extremely frequent) structures that change the control flow, such as conditionals and loops. The normal flow of control among statements is sequential, proceeding from one statement to the next. However, as we shall see, most of the statements in C are designed to alter this sequential flow so that algorithms of arbitrary complexity can be implemented.