Principles GI Coffee House

Principles GI Coffee House coming soon! a coffee house by
***rownedbusiness
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Principles is a woman-/q***r-/veteran-owned specialty coffee cafe opening soon in the Red Hook section of Brooklyn. The shop is modelled after the dissident, anti-war, pro-peace Vietnam-War-era and Iraq-War-era GI coffee houses that operated wholly as coffee shops and eateries and also provided space for activist gatherings, grassroots charity and mutual aid events, and community-building endeavou

rs. Katie, the sole owner of Principles, is a Marine Corps veteran, active in the pro-peace movement, and the child of a bartender and waitress and thus she has a literal lifetime of experience in all things bar, restaurant, and cafe. Most recently, she has been a barista and manager at some of New York’s premiere boutique cafes and has devoted countless hours to professional development in the realm of coffee brewing and espresso. So much of the NYC coffee scene is taken up by serial entrepreneurs with no cafe or restaurant experience who come from money and thought it would be cute to own a cafe, because how hard could it be, right? Katie doesn’t come from money, but she’s scrappy and has a whole village on her side. It’s cliche to say that there’s no better time than now, but seriously there is no better time than *now* because the forest fire of 2020 has razed the landscape of stagnant growth and from it seeds of the next generation of businesses and ideas can flourish in the wake. The city is in a time of record high commercial vacancy and there is an overwhelming pent-up demand to gather and sip drinks in person and Principles is poised to thrive in that environment.

someday i’ll figure out a prettier way to present this, but i’m just tryna get in the habit of sharing numbers right now...
04/08/2026

someday i’ll figure out a prettier way to present this, but i’m just tryna get in the habit of sharing numbers right now. here Q1 2026 as compared to Q1 2025. sales didn’t go down as wildly as i would have expected, but costs went up across the board so net income was down way more than gross. someday i’ll lock into r-star and all the numbers will be well. do any of you number nerds see anything interesting in these numbers or have thoughts on how to improve?

reminding myself and everyone else here that this is a Very Serious Coffee Shop and we sell some of the Best Coffee. no ...
04/06/2026

reminding myself and everyone else here that this is a Very Serious Coffee Shop and we sell some of the Best Coffee. no games. no bu****it. and definitely no fu***ng funny business that blows up all over reddit. no one has ever said a single thing about me on r/parkslope.

 said let’s make a post of this and i’ll bet that it doesn’t even hit triple digit likes. but if it does hit 100 likes t...
02/26/2026

said let’s make a post of this and i’ll bet that it doesn’t even hit triple digit likes. but if it does hit 100 likes then she gets a cookie.

our quarterly ish reminder that this is indeed a coffee shop and we do peddle in some of the best coffee this country ha...
02/24/2026

our quarterly ish reminder that this is indeed a coffee shop and we do peddle in some of the best coffee this country has to offer (i would say “the world” but f**knuts put so many tariffs on imports that i can’t afford to buy international anymore sorry guys).

01/27/2026
COME RACE BIKE IN THE BARREN TUNDRA OF GOWANUS.CASH PRIZES DOUBLED ON ACCOUNT OF THE TERRIBLE WEATHER. EAT FOOD FROM:   ...
01/21/2026

COME RACE BIKE IN THE BARREN TUNDRA OF GOWANUS.
CASH PRIZES DOUBLED ON ACCOUNT OF THE TERRIBLE WEATHER.

EAT FOOD FROM:




WIN S**T FROM:









SPOKE CARD DRAWN AND DESIGNED BY:

FOURTH ANNUAL FROZEN JANUARY ALLEYCAT SATURDAY 24th RACE AT NOONCASH PRIZES. FREE FOR MESSENGERS. I CHALLENGE ANYONE TO ...
01/02/2026

FOURTH ANNUAL FROZEN JANUARY ALLEYCAT
SATURDAY 24th RACE AT NOON

CASH PRIZES. FREE FOR MESSENGERS.

I CHALLENGE ANYONE TO WIN ON ANYTHING OTHER THAN A FIXED GEAR BECAUSE YOU WONT

i’m prolly gonna regret this, but hey you only yolo once. worst case scenario i might just delete this later. i’m really...
12/26/2025

i’m prolly gonna regret this, but hey you only yolo once. worst case scenario i might just delete this later. i’m really channelling my inner samantha jones rn.

yes open every single day! santa stops for no one!!! peep the hours and come hang out if yr cool enough to be in the cit...
12/22/2025

yes open every single day! santa stops for no one!!! peep the hours and come hang out if yr cool enough to be in the city for christmas!!!

MARKETS AND MEMEME DUMPS SUCKERS!!!!MARKET 36 SAT 20th DEC FEATURING: presence    c    MARKET 37 SUN 21th DEC FEATURING:...
12/10/2025

MARKETS AND MEMEME DUMPS SUCKERS!!!!

MARKET 36 SAT 20th DEC FEATURING:
presence


c




MARKET 37 SUN 21th DEC FEATURING:
AGAIN





here’s an Informative Grid Post for those of you that have the gall to not watch my stories
11/25/2025

here’s an Informative Grid Post for those of you that have the gall to not watch my stories

Caption if you’d like: (or just write your own that’s fine too)Join us this Saturday, November 8th from 10am-12pm at  fo...
11/06/2025

Caption if you’d like: (or just write your own that’s fine too)

Join us this Saturday, November 8th from 10am-12pm at for a very important and FREE cupping! All attendees who complete the cupping will get a free drink of their choice made by the wonderful baristas at Principles, paid for by Lucienne.

Details below:
____

Have you ever opened a bag of excellent and/or rare coffee that you’d like to preserve for a longer time at home? What is the best way to keep it tasting good? Freezing? Vacuum bags? Airtight containers? In the original coffee bag? There’s a surprising lack of actual real world testing on this subject, and the majority of the information you’ll find on the Internet is completely anecdotal, or limited in scope at best.

Lucienne wants to change that!

We have started a long term study regarding roasted coffee preservation methods, and this is the first cupping (part of a larger series) where we will be gathering real data, and refining the experiment.

We have preserved a single, iconic coffee (Risaralda Milan Nitro Caturra) from in 20 different ways, and will be cupping them all BLINDLY at the same time to compare. In addition. We will also be brewing pour-overs to compare!

ALL EXPERIENCE LEVELS welcome! In fact, the wider the breadth of experience we have the better.

No RSVPs necessary, and the cupping is completely free. Just show up! Cupping will start promptly at 10:15am.

We’d love to have you!

See you then!
- Josh

🚨BIG OL’ BIKE RIDE ALERT!🚨a’ight, so y’all know those long-ass bike rides i’m known to do with some degree of frequency?...
10/23/2025

🚨BIG OL’ BIKE RIDE ALERT!🚨
a’ight, so y’all know those long-ass bike rides i’m known to do with some degree of frequency? well and i are hosting both a long long ride (200km) and a short long ride (100km) SAT NOV 1ST at the crack of dawn. then hang out after the ride for a lil party to celebrate the randonneuring new year. 🥳🎉🍾

this type of riding is kinda Serious™, so ya gotta have a .us membership and sign up a few days _before_ the ride. if you don’t already have a membership, ask me how or just poke around the RUSA site, it’s not the most impossible to find. also ask me any questions if you have any slight interest in randonneuring, we always need more riders, especially of the young, q***r, and any-gender-other-than-man variety. :) but lemme say, randos are the sweetest, chillest riders around.

okay i hope to see you all there, it’s gonna be a helluva blast!!

what gets to me with this review is that it’s simultaneously vague, mean-spirited, and has a small kernel of truth to it...
10/09/2025

what gets to me with this review is that it’s simultaneously vague, mean-spirited, and has a small kernel of truth to it.

i think that entrepreneurs/small business owners have to have some degree of inability to take feedback or ability to tune out criticism; a key trait (imo) of a successful leader is decisiveness, and the trade-off with that is not making everyone happy. personally, part of my appeal is indeed my strong opinions and bull-headedness, and yes i know that gets me into hot water. but on the same token, i do often ask people in my circle for feedback and i do want to improve. random opinions spouted on review sites, however, carry far less stock for me. lastly, my ability or inability to take criticism is more a discussion for me and my therapist or my closest confidants and not for one-way internet conversation.

to cast aspersions on the success or failure of a business simply because you had a bad reaction hits me as truly mean-spirited. if so many people recommended the place and you had a sour experience, perhaps you just hit an off moment. as the saying goes, those who can’t do critique.

my final thought is really a thing that i need to keep working on and remind myself of. i make hundreds of drinks a day and get asked the same questions dozens of times an hour. i get tired. but i know that for each custie it’s a new and novel experience and i need to try my best to make each and every experience positively remarkable. frankly, i know that i can get short when i’m tired and worn out and that’s a cue to me to take a break. work fewer hours and fewer days. go touch grass. i’m in this for the long haul and i can’t let burnout get me down. we all have our off days, but as a public personality the expectation for me is much greater and my conduct should reflect that. i’m only human and i like to think that new yorkers are known for being kind while not necessarily being cloyingly nice. it’s all a balance. i like being wry, sardonic, and to-the-point, but i could also do well to soften some of my edges and ramp up the customer service. idk, tell me what you think about these musings but say it to me irl.

Address

139 9th Street
Brooklyn, NY
11225

Opening Hours

Monday 9am - 1pm
Tuesday 9am - 1pm
Wednesday 9am - 1pm
Thursday 9am - 6pm
Friday 9am - 5pm
Saturday 9am - 8pm
Sunday 9am - 2pm

Telephone

+1 347-218-4290

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