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Full brew-day documentaries
Grain to Glass is where a beer gets the full documentary treatment: recipe design, brew day, fermentation, and the final pour, all in one video. These are the most complete looks at how things actually get made in the basement — the water salts, the step mashes, the gadgets, and the occasional sketch comedy that breaks out when the mash is resting.
A running theme in this series is gluten-free brewing done right. Not gluten-reduced barley beer with enzyme added — 100% gluten-free grain bills built from millet, buckwheat, quinoa, and corn, brewed to stand shoulder to shoulder with their barley-based originals. One video even puts a gluten-free build head to head against its barley-based original in a side-by-side tasting. Start with the Scottish Export if you want classic malt-forward brewing, or jump straight to the gluten-free builds to see what millet malt can really do.
#01 · The Underground Brewery · February 9, 2025
The first-ever Grain to Glass: a proper malty Scottish Export on a 10-gallon Maris Otter grain bill that went on to take second place for Best of Show at the Wisconsin State Fair. What does a slight-roast, Maris-Otter-forward Scottish Export actually taste like? Press play.
Read the write-up →#02 · The Underground Brewery · May 25, 2025
The house Mexican lager, cloned with 100% gluten-free ingredients — millet, corn, and enzymes. Then the side-by-side twist: how close does the gluten-free version actually get? Full recipes included.
Read the write-up →#03 · The Underground Brewery · December 13, 2025
The brew day that kicks off the 2025 malt experiment: two full pounds of Griffin gluten-free millet malt auditioning in an amber ale. It brings raisin and dark fruit nobody expected — maybe a gluten-free barley wine in our future?
Read the write-up →#04 · The Underground Brewery · March 1, 2026
A hefeweizen with no wheat — and no gluten at all. Buckwheat, millet, and quinoa take on the hardest style in gluten-free brewing, built as a retirement gift for a Milwaukee firefighter. Did the banana and clove survive the swap? Press play.
Read the write-up →Official homebrew supply shop of the Brewtubers
Sponsor and official homebrew supply shop of the Brewtubers — the club behind the experiments on this channel. A family-owned homebrew supply store in Danvers, Massachusetts since 1972, with one of the biggest yeast selections around — order any malt they carry in any quantity, and orders placed before 11 a.m. ship the same day. Visit beer-wine.com and tell them the Brewtubers sent you in the order comment box.