Video - How to Guide for Using the SF70 Hi, I’m the SF70 Brewing System! Here’s How to Assemble and Use Me. See written instructions here. Check out our YouTube Channel here. Related articles Instructions - SF70 Instructions - GF30 Quick Start Guide - Glycol Chiller Adapter (GCA) Kit How do I avoid exposing my beer to oxygen when using the GCA and Pressure Transfer Kit with my SF50/SF70? Product Guide to the G & S Series