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The Coffee Cart That Crushed Starbucks
How one barista’s side hustle became a $10M business in two years—by breaking every “startup rule” except one

Kevin never meant to start a company.
He just wanted better coffee.
The break room sludge at the tech company where he worked as a junior dev tasted like battery acid filtered through regret. So he brought his own beans. Then a French press. Then a portable grinder. By month three, a line of coworkers was forming at 9:15 AM sharp outside his cubicle.
They offered to chip in. Kevin saw a chance.
So on weekends, he pushed a beat-up coffee cart near the farmer’s market. It was janky—duct tape on the handle, no permit, a chalkboard menu with three items: Black, With Milk, Cold Brew. That’s it.
But the coffee?
It slapped.
He used single-origin beans, roasted 24 hours before brewing. No syrups. No nonsense. Just flavor so good it made people stare at their cup like it just told them a secret.
Within a month, the cart had a cult following.
Then it got weird.
A barista from a hip café tried to copy his cold brew. A TikTok influencer reviewed his coffee and called it “liquid dopamine.” A venture capitalist offered him $250K for 20%—at the cart. While he was pouring coffee.
Kevin said no. He wasn’t ready.
Instead, he focused on two things:
1. Dialing in the product like a mad scientist.
2. Learning what really made customers come back.
He noticed the cold brew outsold everything else. So he killed the other two drinks.
He noticed the regulars liked to prepay. So he hacked together a QR-based subscription using Notion and Stripe.
He noticed people didn’t care about fancy logos. They just wanted it cold, strong, and fast.
Three months later, he leased a tiny 200 sq ft garage and installed his first bottling line.
He still had no brand. No Instagram. No pitch deck.
Just a name: “Black Label Cold Brew.”
By year one, he was selling 500 bottles a week.
By year two, Whole Foods came calling.
Today, Black Label is in 1,100 stores, doing $10 million in annual revenue. Kevin still doesn’t have a logo he likes. But he did finally buy a new cart—for nostalgia.
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Start small, scale fast.
Obsess over a tiny, real problem. Nail the solution. Then pour gas on what works. Don’t build an empire—build a snowball, and let it roll.
That’s business lesson #02. Thanks for reading. We’ll be back tomorrow—bizzness as usual.