I tested caffeine levels at Starbucks, McDonalds, Blue Bottle, Dunkin Donuts, and Blank Street Coffee. Are the numbers actually accurate from what they posted online? Do different coffee shops diff wildly in their caffeine dosages in a double espresso? What should I test next? ** Affiliate/Discount Links ** Stardust Coffee (20% off Discount Code: SHERVIN) https://bit.ly/shervinstar Astrocat Apple Watch App (caffeine tracker): https://bit.ly/shervintracks ** Watch More Videos ** I Quit Coffee for 7 Days. It Changed My Life: https://www.youtube.com/watch?v=6xG5cPLndUM I Tested a Science-Based Way to Manage Stress (WHOOP x Huberman): https://www.youtube.com/watch?v=_0hcL7RyREM I Tested Apple Watch's VO₂ Max (vs Sports Lab): https://www.youtube.com/watch?v=30QUCjh_Q80 ** Add Me ** Subscribe // null Socials // https://beacons.ai/shervin Strava // https://www.strava.com/athletes/shervinshares ** Friends ** https://www.youtube.com/channel/UCH2tpAxt19Q_Kpxfsjf9sfg + https://www.youtube.com/channel/UCTelxe2P2IvlcygS7_Uv15A + https://www.youtube.com/channel/UCj7ML5-da-bCCcHz0ipUmYQ https://www.youtube.com/channel/UCj4nCgtjKJppK_IZeY8TUJg https://www.youtube.com/channel/UCRI5ZedBs0_BYY4PlxD6m7w + https://www.youtube.com/channel/UCnmGIkw-KdI0W5siakKPKog https://www.youtube.com/channel/UC7DvZ_i_fPlNE8g15_BtB4w https://www.youtube.com/channel/UCyki4e6RG84BT_xzi4oYkRw https://www.youtube.com/channel/UCVkLpfjp_uUiLWym3TyibQw Inspired by https://www.youtube.com/channel/UCMb0O2CdPBNi-QqPk5T3gsQ #Coffee #Caffeine #NYC ** Timecodes ** 00:00 - Start 00:43 - McDonald 03:22 - Starbucks 05:30 - Coffee Addiction 05:54 - Astrocat App 06:57 - Dunkin’ Donuts 08:07 - Stardust Coffee 09:03 - Blank Street Coffee 11:15 - Blue Bottle Coffee __________________________________________ ** My Fave Products + Discount Codes ** AMAZON // https://www.amazon.com/shop/shervinshares SLEEP // Eight Sleep (Code "SHERVIN"): https://eight-sleep.ioym.net/shervin FITNESS // WHOOP Strap ($30 Off): https://join.whoop.com/shervin NUTRITION // Levels Health CGM: http://levels.link/shervin Advertiser Disclosure: Some of the products that appear on this website are from companies from which Shervin Shares will earn an affiliate commission or referral bonus. The content in this video is accurate as of the posting date. Some of the offers mentioned may no longer be available.