How important is brewing pressure for espresso? Measuring and adjusting it on the Rancilio Silvia

Portafilter Pressure Gauge 3/8": https://amzn.to/3yLht4e * This video is about the brewing pressure of an espresso machine: 7, 9, or 12 bar, how high should it be, and how important is it really? Brewing pressure is what turns the coffee from the portafilter into an espresso. There are some misconceptions about brewing pressure, which I want to clear up in this video. I'll also give you some interesting facts about brewing pressure. At the end of the video, I measure the brewing pressure of my Rancilio Silvia. Especially with older Silvia models, there was the problem that the brewing pressure was set too high from the factory. Whether this is also the case with the V5 and how to adjust it using the expansion valve is explained in the video. Please give me a like if you enjoyed the video and subscribe to the channel so you don't miss any future videos: http://bit.ly/subscribeclick ▬▬▬ Links 🔗 ▬▬▬▬▬▬ 9 Bar Optimal? - Test Results: https://compoundcoffee.com/experiment... Inspiration by:    • Understanding Espresso: Pressure (Episode #6)   ▬▬▬ Support ♥️ ▬▬▬▬▬▬ Do you enjoy my content and want to support the channel? You can support me with a small tip here: https://paypal.me/thebaristagame Thank you for your support! ▬▬▬ Equipment ⚙️ ▬▬▬▬▬▬ Heart of the Machine: Rancilio Silvia V5: https://amzn.to/3DWcssI * Eureka Mignon Specialita: https://amzn.to/3na85V5 * Bottomless Portafilter: https://amzn.to/3qbrDXx * IMS Upgrades: 18-Gram Filter Basket (IMS): https://amzn.to/3hAy5m5 * Shower Screen (IMS): https://amzn.to/3iKWNkU * 58.4mm Tamper (IMS): https://amzn.to/3yM2Tsx * Distribution Tool: https://amzn.to/3yRs0uj * Tamper Mat: https://amzn.to/38OR3TX * Knock Box: https://amzn.to/3bsiLsq * Dosing ring: https://amzn.to/3DStKXR * Espresso scale: https://amzn.to/2VTn2fu * Magnetic timer: https://amzn.to/3s7X3zS * Milk pitcher: https://amzn.to/3deidp4 * Double spout for portafilter: https://amzn.to/3aa87Wx * Cortado glasses (90ml): https://amzn.to/3BRrZbI * Filtered water (BRITA): https://amzn.to/3tjJoGK * Coffee bean hopper (Atmos): https://amzn.to/3w20FoJ * Portafilter pressure gauge: https://amzn.to/3yLht4e * For cleaning🧹 Coffee oil remover: https://amzn.to/2NWWOIB * Brew group brush: https://amzn.to/3srt4lT * Blind filter: https://amzn.to/3w4tnVZ * Coffee grinder cleaner: https://amzn.to/3dehPH8 * Film equipment 🎥 Camera (Dynamic shots): https://amzn.to/34rDaJo * Camera (Static shots): https://amzn.to/2ROnvkM * Lens: https://amzn.to/2R61sFN * Lighting: https://amzn.to/2SCUW9O * ▬▬▬ Barista T-shirts 👕☕️ ▬▬▬▬▬▬ You can find my own T-shirt designs for baristas here here: https://amzn.to/3flXwqN * ▬▬▬ more videos 🎥 ▬▬▬▬▬▬ ►Playlist: “How to be a Homebarista”:    • Milchaufschäumen: Rancilio Silvia (Siebträ...   ►Playlist: "Rancilio Silvia":    • Rancilio Silvia - die beste Siebträgermasc...   ►Playlist: "Quick Tutorials":    • Americano | Zubereitung mit der Siebträger...   ▬▬▬ Social Media 👥 ▬▬▬▬▬▬ ►Instagram:   / thebaristagame   ►TikTok:   / thebaristagame   ►Subscribe to YouTube: http://bit.ly/abonnierenklick ▬▬▬ Timestamps ⏱▬▬▬▬▬▬ 00:00 Intro: Brewing Pressure 00:18 Debunking Misconceptions 02:26 Interesting Facts 04:48 Measuring Brewing Pressure on the Silvia 05:22 Adjusting the brewing pressure 08:54 Conclusion on the portafilter pressure gauge (* Affiliate link: By purchasing the product through this link, you support me without paying anything extra for the product.)