Saturated or E61. Which Group Head is Best?

<p>Let’s talk about thermal stability between the two, and what practical difference it makes if any to brewing espresso. The discussion gets quite technical at times, so if you don't like going deep, this might not be the right video for you. Grab yourself the chance to win an amazing Peak Coffee Water filter (UK Only) no purchase is necessary. Sign up using the link below. https://bartalks.net/giveaway/</p>