Does cold brew have more or less caffeine than hot coffee?

Cold brew concentrate has significantly more caffeine than drip coffee because the coffee-to-water ratio is much higher during the steep. BCCB cold brew is made at a high concentrate ratio and is intended to be consumed as-is or lightly diluted. Compared to a standard 8oz drip coffee, a serving of BCCB is roughly comparable to slightly higher in caffeine depending on dilution.

Why is BCCB cold brew different from other cold brew brands?

BCCB publishes the full data for every batch it has ever made — temperature curves logged every few seconds, steep duration tracked to the minute, and yield measured from start to finish. This is called the Proof. Most cold brew companies offer no visibility into their process. BCCB also uses a 20-hour steep in cold filtered water with no heat, no preservatives, and no filler ingredients. Every batch is small by design.

Why does BCCB care so much about publishing batch proof and telemetry data?

Because claims without evidence are worthless. Any brand can say their coffee is high quality. BCCB built live sensor hardware — DS18B20 temperature probes and a load cell on an ESP32 microcontroller — into every brew specifically so customers can verify the process themselves. The data is published publicly on boldcrewcoldbrew.com for every batch. If it is not documented, it did not happen.

BCCB — Bold Crew Cold Brew | Small Batch Cold Brew

· TRACKING EVERY BATCH ·

We are currently performing test batches to refine our systems. Follow along as we create our signature brew(s) — from plant to burlap to keg to growler, we aim to track and memorialize every batch we ever brew.

01 Source

02 Roast

03 Grind

04 Steep

05 Monitor

06 Filter

07 Bottle

· 30 DAYS OF BREWING ·

The Origin Story.

DAY 0 / 30

Operational Progress BCCB LAB · LOS ANGELES

COMING SOON

· PRE-CAMPAIGN ·

With the working prototype already constructed, when Cris' rig comes online we'll have both founders brewing + collecting data points to run our 30 days of brewing, in hopes to create our Signature Cold Brew Lines

Once Cris' rig is live, we're running 30 consecutive days of batching. Each batch generates a dispatch — written from sensor logs, published here automatically. No editorial delay. Just the numbers and what they mean.

This section will populate day by day. Subscribe below to get each dispatch in your inbox the morning it drops.

PENDING RIG ASSEMBLY IN PROGRESS · CAMPAIGN LAUNCH TBD

· THE RIG ·

BCCB brew rig — ESP32 and breadboard overhead view

· THE PROGRESSION ·

Build the Rig

Cris assembles the IoT cold-steep system — sensors, weight cells, automated logging.

IN PROGRESS

Tune the Recipe

30 consecutive batches. Every reading logged. Temperature, TDS, steep time — iterated until the curve is locked.

30 Days of Batching

The campaign begins. Each batch auto-generates a dispatch published to this page and sent to the crew.

CAMPAIGN

Release Exciting Bright, Quality Brown & Cold Brew Growler

Two signature whole bean blends plus the cold brew itself — pulled fresh from the rig, filled into a refillable 32oz growler. Every product ships with a QR code linking to its batch record.

QUEUED

· THE BCCB BRAND PRINCIPLES ·

Three principles. Hold us to them.

BE BOLD

[ Bold Brew, Bold Business. ]

BE TRANSPARENT

[ Radical transparency in operations + communications + community. ]

GROW COFFEE

[ Grow coffee community + knowledge, from consumers to homebrewers. ]

· THE GOAL ·

Document the process. Iterate in public. Pour it forward.

We're building one premium cold brew, the same way every time — a documented, iterable process that earns its way from a Los Angeles fridge to a national keg program to a roastery on the ground. Three phases. The product lineup is how phase one shows up on a shelf. Every vessel ships with a QR code that links directly to its batch record — temp logs, steep time, TDS — the full digital twin of the coffee in your hand.

· PHASE 01 · PRODUCT LINEUP · 3 VESSELS · UNBRANDED

· PRODUCT 01 ·EB / LIGHT

Exciting Bright — light roast whole bean coffee bag

EXCITING BRIGHTBright & Smooth Blonde.

Hand-curated by our Head of Brewing, Cris. Bright, smooth, low-acid — the morning bag.

12oz · WHOLE BEANv0.1

· PRODUCT 02 ·QB / DARK

QUALITY BROWNBold Dark Roast.

Deep, low-acid daily driver. Cold-brew-grade beans for the espresso and French press routine.

12oz · WHOLE BEANv0.1

· PRODUCT 03 ·CB / GROWLER

BCCB Cold Brew — 32oz refillable growler

COLD BREWPulled from the rig.

The signature pour, straight off the IoT brew rig. Refillable — returned, rinsed, refilled. Vessel is part of the operation.

32oz · REFILLv0.1

· EVERY VESSEL · EVERY BATCH ·

Each bag and growler ships with a QR code. Scan it and you land on the live batch record for exactly what's in your hand — temperature curve, steep duration, TDS reading, the works. The physical product and the digital log are the same thing.

· THE ROADMAP · Three phases. One process.

PHASE 01 Local. Documented.

Produce premium cold brew through a documented, iterable process. Every batch logged, every reading public. Distribute locally — Los Angeles, by hand, by us.

· IN PROGRESS · NOW → '26

PHASE 02 National. Signature.

Distribute the signature beans nationally. B2B kegs into cafés and offices. Instant offerings — cold concentrate, single-serve — for the home.

· QUEUED · '27 → '28

PHASE 03 Roastery. Storefront.

A BCCB roastery and storefront. The brew rig in the window, the batch log on the wall, the bag on the shelf — and a counter to pour from.

· HORIZON · '29 →

SIGNED

Cris Z.

CRIS ZELAYA

FOUNDER · HEAD OF BREWING · COFFEE CHEMISTRY

Sky M.

SKY MADSEN

FOUNDER · OPERATIONS · TECH & DESIGN

· REACH OUT DIRECTLY · admin@boldcrewcoldbrew.com

BCCB — Bold Crew Cold Brew, Los Angeles