I took my caffeine meter out and about in London to compare caffeine levels in espressos around the city. My Caffeine Analysis video: https://youtu.be/etnMr8oUSDo Links: Patreon: https://www.patreon.com/jameshoffmann Limited Edition Merch: https://geni.us/TensHundredsThousands My Books: How to Make The Best Coffee At Home: https://geni.us/howtomakethebestcoffee The World Atlas of Coffee: http://geni.us/atlasofcoffee The World Atlas of Coffee Audiobook: https://bit.ly/worldatlasofcoffeeaudio The Best of Jimseven: https://geni.us/bestofjimseven Find me here: Instagram: https://www.instagram.com/jimseven Twitter: https://www.twitter.com/jimseven Things I use and like: My video kit*: https://kit.co/jimseven/video-making-gear My current studio coffee kit*: https://kit.co/jimseven/studio-coffee-kit The kitchen set shelving is by Studio Hausen*: https://bit.ly/studiohausen (they gave me a 10% discount code to share [More]