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Golden Ratio

Sale price $24.99

Relish seamless balance in every cup, where gentle acidity and soft sweetness align perfectly—just like nature’s own formula.

Size: 12 oz | 340 g
Grind: Whole Bean
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Golden Ratio

Golden Ratio

We are Cerebrew

Cerebrew bridges the worlds of coffee and STEM, offering high-quality coffee that fuels intellectual pursuits and supports educational initiatives. We are the go-to destination for those who seek both excellence in their coffee and a commitment to community and innovation.

Roasted in Small Batches

Crafted in limited quantities to ensure consistency, flavor clarity, and premium quality in every bag.

Specialty Crafted Coffee

We source high-grade beans and handle them with care to bring out their full complexity and character.

Freshly Roasted Daily

We roast fresh every day to maintain peak flavor, aroma, and quality in every bag we ship.

Supports STEM Programs

A portion of every purchase helps fund inclusive STEM education and hands-on learning initiatives.

Fun Fact

The Golden Ratio (~1.618) is a mathematical proportion found in nature and art, celebrated for its aesthetic harmony.

Brewed with Intention. Backed by Believers.

Hear from thinkers and doers who trust Cerebrew to keep them focused, inspired, and fueled—one exceptional cup at a time.

This coffee helps me lock in during deep work sessions. Smooth, strong, and never bitter—Cerebrew fuels my flow state.

Amanda R. – Mechanical Engineer

It’s rare to find a coffee brand that aligns with both my taste and my values. Supporting STEM education while sipping incredible coffee? Win-win.

Priya K. – PhD Student, Biotech

Every bag is consistent, flavorful, and fresh. Cerebrew feels like it was made by people who understand both quality and purpose.

Leo D. – Product Manager

I started buying it for myself. Now the entire team drinks it during competition season. It’s our secret edge!

Michelle S. – High School Robotics Coach

Cerebrew hits different. I’ve stopped buying anything else—it’s that clean and focused of a roast.

Marcus T. – Software Engineer

Brewing Cerebrew

Instructions:
Grind fresh right before brewing to unlock the full complexity of Cerebrew’s small-batch roasts. Adjust your grind size to match your preferred brew method for the cleanest cup.

Total Time:
~1 Minute (to grind)

Instructions:
Use a medium grind, similar to granulated sugar. Brew at 195-205°F for balanced extraction. Ideal for auto drip brewers — delivers a smooth, approachable cup that highlights Cerebrew’s layered notes.

Total Time:
~5 Minutes

Instructions:
Use a coarse grind, about the size of sea salt. Steep 4 minutes, then gently press. This method produces a rich, full-bodied cup with deeper mouthfeel — perfect for savoring bold Cerebrew profiles.

Total Time:
~6 Minutes

Instructions:
Use a fine, powdery grind. Pull a 1-2 oz shot in ~25-30 seconds. This highlights Cerebrew’s dense, concentrated flavors and creates a creamy, persistent crema.

Total Time:
~1 Minute

Subscribe. Save 15%. Brew STEM.

Every subscription order helps fund STEM education for the next generation of innovators.
Your Coffee Questions, Answered
We roast our beans daily in small batches, then package and seal them immediately to lock in freshness. Orders ship out quickly so you receive coffee at its peak flavor — never stale or shelf-aged.
Most orders ship within 1-2 business days. Delivery typically takes 3-5 business days depending on your location. You’ll get tracking details as soon as your coffee leaves our roastery.
Yes! You can save 15% and enjoy worry-free coffee deliveries by choosing a subscription frequency that works for you — skip, pause, or cancel anytime. Plus, we donate $1 to support STEM programs on every subscription purchase.
  • Whole Bean: Best if you have a grinder at home. Keeps flavors freshest.
  • Drip (Medium): Great for standard coffee makers.
  • Coarse (French Press): Ideal for immersion brews.
  • Fine (Espresso): Tailored for espresso machines.

    • Not sure? We generally recommend starting with whole bean for maximum control.
    Absolutely. If you like cold brew, we recommend the coarse grind for best results. It extracts smoothly and reduces bitterness.
    Yes — we partner with farms and co-ops committed to sustainability and fair practices, ensuring both quality and a positive impact on coffee-growing communities.
    We accept returns for non-perishable items. Perishable products like coffee, food, and beverages are not eligible for returns or exchanges.
    We don’t currently offer gift options, but it’s in the works for the future — stay tuned!