10/19/2026
the rumours are true
Principles GI Coffee House
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Principles GI Coffee House is a specialty coffee cafe in Red Hook, Brooklyn, modeled after anti-war GI coffee houses that also served as community-building spaces. Owned by Marine Corps veteran Katie, who has extensive experience in the hospitality industry and professional development in coffee brewing and espresso, Principles offers a unique and socially conscious coffee shop experience.
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Address
139 9th Street
Brooklyn, NY
11225
To reach the coffee shop located on 9th street in New York, there are a few transport options. You can take public transportation by taking the subway and getting off at the 8th Street Station or taking a bus that stops at the intersection of 9th Street and Avenue A. If you prefer driving to the location, there are several parking garages around the area where you can park your car for a fee. However, finding free street parking around this area is quite challenging. It is advisable to use public transport if possible due to traffic congestion around this neighborhood.
Opening Hours
| Monday | 9am - 1pm |
| Tuesday | 9am - 1pm |
| Wednesday | 9am - 1pm |
| Thursday | 9am - 6pm |
| Friday | 9am - 5pm |
| Saturday | 9am - 8pm |
| Sunday | 9am - 2pm |
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What people say
Principles GI Coffee House is a unique and inspiring addition to the coffee scene in New York. As a woman-/queer-/veteran-owned specialty coffee cafe, it stands out from the crowd with its mission to provide not only great coffee but also a space for activism, community-building, and grassroots charity events. The cafe's model is based on the dissident, anti-war, pro-peace Vietnam-War-era and Iraq-War-era GI coffee houses that operated as both coffee shops and gathering places for activists.
Katie, the sole owner of Principles, brings a wealth of experience to the table. As a Marine Corps veteran and an active member of the pro-peace movement, she has devoted countless hours to professional development in the realm of coffee brewing and espresso. Her background as the child of a bartender and waitress gives her a lifetime of experience in all things bar, restaurant, and cafe.
What sets Principles apart from other cafes in NYC is Katie's dedication to her craft. Unlike many serial entrepreneurs who come from money but lack experience in running a cafe or restaurant, Katie is scrappy and has a whole village on her side. She has worked as a barista and manager at some of New York’s premiere boutique cafes before opening Principles.
In these uncertain times where businesses are struggling to survive due to the pandemic's impact on our economy, Principles GI Coffee House offers hope for the future. It's refreshing to see new businesses like this one emerge from the ashes of 2020 with fresh ideas and innovative concepts that prioritize community building over profit margins. If you're looking for great coffee served with passion and purpose, look no further than Principles GI Coffee House on 9th Street in New York City.