You Won't Believe the Difference: 9 Bar OPV Mod for Gaggia Classic Pro

Want a better mouth feel and less channeling on your Gaggia Classic Pro? Then follow this simple tutorial for replacing the original 12.5 bar spring of the OPV to a 9 bar spring. We do some tests to see how the optics of the extraction, and the flow thereof, change based on the 12, 9 and 6.5 bar springs. Stay tuned until the end to see the results of the 6.5 bar spring, too. -- Products used/recommended in this video -- (these are affiliate links that help fund videos like this, at no extra cost to you) ►The Gaggia Classic Pro: 🇺🇸 https://amzn.to/4rar0gv 🇩🇪 https://amzn.to/4tvy9tv 🇬🇧 https://amzn.to/462nqg9 🇨🇦 https://amzn.to/3ZrpMBB ►Bottomless Portafilter: 🇺🇸 https://amzn.to/4cnrdsd 🇬🇧 https://amzn.to/4bOmTC7 🇩🇪 https://amzn.to/4ag56RK ► Springs: https://amzlink.to/az05gVxXeuXWE ► 0.1 Gram Coffee Scale: 🇺🇸 https://amzn.to/465cGhA 🇩🇪 https://amzn.to/4jXkVQr 🇪🇺 https://geni.us/MHW3BomberScale ► Gaggia Classic Pro Gear: https://kit.co/tomscoffeecorner/gaggi... 🛠 Grinder Suggestions: https://kit.co/tomscoffeecorner/grind... (Amazon) Spring measurement breakdown: 12 bar spring: 23.6mm long and wire strength of 0.6mm. 6.5 bar spring: 23.9mm long and wire strength of 0.5mm. 5 bar spring: 20.1mm long and wire strength of 0.5mm 0:00 Subscribe for more Tips and Reviews 0:51 Required Tools 1:35 Factory Spring (12 bar) Results 2:49 Installing the 9 bar Spring 5:27 9 Bar Spring Results 6:32 6.5 Bar Spring Results AFFILIATE DISCLOSURE: Some of the links used in the description will direct you to Amazon or eBay, as an Amazon Associate or eBay Partner I earn from qualifying purchases at no additional cost to you.. Affiliate commissions help fund videos like this one. #gaggiaclassicpro #tomscoffeecorner #opvmod