Inspiration
Specialty coffee sourcing is fragmented and trust-heavy. Buyers struggle to verify quality and reliability, while sellers risk being bypassed after making introductions. We were inspired by real conversations with coffee exporters and cooperatives, which revealed that the biggest problems aren’t discovery or pricing, but trust, incentives, and information asymmetry.
What it does
BrewMaster is a coffee sourcing platform that connects buyers and sellers with built-in trust mechanisms. Sellers list coffee lots with quality and production details, while buyers browse, filter, and match based on preferences. The platform introduces quality signals, analytics for sellers, and commission-aware workflows to reduce friction and discourage disintermediation.
How we built it
We designed BrewMaster as a two-sided platform:
Separate buyer and seller flows
Seller analytics for visibility into performance
Buyer search and filtering for efficient discovery
An AI assistant to guide users and clarify lot details
The system models real coffee-trade workflows, from listing to negotiation, while keeping the architecture simple enough to scale.
Challenges we ran into
Translating informal, trust-based coffee trading into structured digital workflows
Designing features that add real value without overengineering
Balancing speed (hackathon constraints) with realism and domain accuracy
Avoiding generic marketplace patterns that don’t reflect coffee-specific pain points
Accomplishments that we're proud of
Building a domain-specific marketplace instead of a generic platform
Designing trust and incentive-aware features grounded in real industry behavior
Delivering clear buyer and seller experiences within a short timeframe
Creating a project that can be explained deeply, not just demoed
What we learned
In complex markets, trust matters more than features
Domain understanding beats generic “AI-first” solutions
Simple, well-chosen mechanisms outperform flashy complexity
Building for real users forces better technical and product decisions
What's next for BrewMaster
Expand the quality confidence and seller reliability signals
Add transaction lifecycle tracking and delivery confirmation
Integrate real pricing and logistics data
Pilot the platform with small specialty coffee exporters and buyers
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