Uploads from Lance Hedrick

Currently Playing: This Will Change How You Store Coffee

In this video, I go over recent scientific endeavors to understand the nature of aging in roasted coffee and how best to preserve its ideal state. This includes scholarship on bag material, degassing rates, oxygen and water vapor transmission rates, chemical changes within the bean, freezing, and more. The hope is for the viewer to walk away more educated on what best practices are for their given situation regarding bean storage and preferences. Works cited: (Dr. Smrke et al) Time-Resolved Gravimetric Method To Assess Degassing of Roasted Coffee https://pubs.acs.org/jafcau/article/66/21/5293/1515149/Time-Resolved-Gravimetric-Method-To-Assess (Dr. Smrke et al) Effects of different coffee storage methods on coffee freshness after opening of packages https://www.researchgate.net/publication/361865420_Effects_of_different_coffee_storage_methods_on_coffee_freshness_after_opening_of_packages (Dr. Hendon et al) The effect of bean origin and temperature on grinding roasted coffee https://www.nature.com/articles/srep24483 (Dr. Gantner et al) Effect of Temperature and Storage on Coffee’s Volatile Compound Profile and Sensory Characteristics https://pmc.ncbi.nlm.nih.gov/articles/PMC11675256/?utm_source=chatgpt.com Then there is the book written by Dr. Samo Smrke on coffee freshness: https://www.scribd.com/document/791749779/Coffee-Freshness-Handbook-180327-DIGITAL And finally, Dr. Smrke's 2019 SCA Lecture: https://sca.coffee/sca-news/podcast/81/the-science-of-coffee-freshness-samo-smrke-expo-lectures-2019-6lrbe *please note- When filming, I was unaware of a company using LDPE with the EVOH lining (only way, really, to make LDPE worth it by increasing resistance to oxygen transmission). Apparently, the Aviary website was outdated when it said it used single LDPE layer (which is quite porous); Christopher Feran has since updated his site since chatting to note his bag is actually with the EVOH layer, making it incredibly robust for something recyclable. I am sure there are other examples- my statement was perhaps a bit too generalized and fastidious since most roasters I tend to consume or pay heed to lean in the direction of translucent and transparent bags or biodegradable bags. Commendable, but not doing the coffee many favors long term unless human intervention suggested in this video. Cheers! Links __________________ Join my Patreon community at: https://www.patreon.com/lancehedrick Find me on IG at: https://www.instagram.com/lancehedrick Find me on Facebook at: https://www.facebook.com/lancehedrickcoffee My storefront: https://www.amazon.com/shop/lancehedrick Shop ID: https://amzn.to/48CcpTj My Second Channel: Lance Hedrick Unfiltered @LanceHedrickUnfiltered ____________________ Time Cues: 0:00- The Problems 2:00- Fresh vs Rested 4:26- Bag Material 6:09- One Way Valve 7:48- Coffee Bag Seals 9:00- Bag Hack 10:50- Freezing Coffee 14:18- Vac Seal and Tubes 16:44- TLDW