Specialty Roaster · Est. San Francisco

Every cup is an act of
intentional craft

We source single-origin beans from micro-lots across the coffee belt, roast them in small batches at our South of Market facility, and pull every espresso with the precision it deserves. This is coffee that asks for your full attention.

12 Single-origin origins
Small Batch roasted weekly
Daily Pastries baked fresh
Close-up of freshly roasted coffee beans in a wooden bowl

From micro-lot to your cup —
nothing skipped

Blue Java began with a simple conviction: that exceptional coffee deserves an unbroken chain of care from farm to cup. We work directly with growers in Ethiopia, Colombia, Guatemala, and Kenya — paying prices well above Fair Trade — to secure the year's best micro-lot harvests.

Back in San Francisco, each lot is roasted in 5-kilogram batches on our vintage Probat. We cup every roast to determine its optimal profile, then brew it fresh daily at our café on Main Street. The result is a menu that changes with the seasons and reflects the character of each harvest.

Direct Trade Relationship pricing with origin partners
Weekly Roasts Small batches, roasted every Tuesday & Friday
Cupped & Tested Every lot is Q-grader cupped before purchase

Precision is our language

Every variable is considered — water temperature, grind size, extraction time, bean age. We don't rush a pour. We don't guess a dose. We measure, we taste, and we adjust until the cup tells the truth.

01

Sourcing

We visit farms when possible, cup green samples in our roastery, and commit to contracts that reward quality and sustainability at the origin.

02

Roasting

Five-kilogram batches on a restored Probat allow us to shape each curve of the roast profile. Light for brightness, medium for balance — never beyond what the bean can carry.

03

Extraction

We weigh every shot, time the flow, and taste the result. A good espresso is repeatable only through discipline — and we are disciplined.

04

Service

Our baristas know every origin on the menu, can describe its terroir, and will guide you to a cup that matches your palate — no pretension, just clarity.

A close-up of coffee grounds being dosed into a portafilter during the espresso preparation process

Come sit with us

Our café lives at the intersection of Main Street and the ferry building district — a quiet corner of South of Market where the light hits the counter just right in the afternoon.

Address 101 Main St
San Francisco, CA 94105-1804
Hours Monday – Friday: 7:00 AM – 4:00 PM
Saturday: 8:00 AM – 4:00 PM
Sunday: 8:00 AM – 3:00 PM
Wi-Fi Complimentary for guests. Network: BlueJava_Guest
Street-level view of the Blue Java Coffee café on Main Street in San Francisco
101 Main St, San Francisco
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