The film was shot entirely at Luke Stanaway's home in the Lake Balboa neighborhood of Los Angeles. Much of what you see in the film are his own possessions.
Adam Lehnert-Spalding and Luke Stanaway are lifelong best friends. The two met in first grade and grew up four blocks from each other.
All three cast members performed together on an improv team called Truffle Box. They formed as a graduation team at the famous (and since closed) iO West theater.
Although never stated on camera, Eric and Natalie's last names are Smith and Kramer, respectively.
The scene in which Eric professes his knowledge of the brewing process was factually accurate: the fifth step really is "wort separation and cooling".