For those who are interested, the youtuber Applied Science explaining in detail how caffeine extraction works:<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=TvmM6qa2a90" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=TvmM6qa2a90</a><p>very educational.