Bio Frigid Box preserves fresh crop harvests without grid power

The Takeaway

• The Rochester Institute of Technology Global Scholar Quest awarded this project a Rs 1,00,000 development grant.
• An exterior plastic shell pairs with an internal vacuum barrier to form the primary structural shield against outside ambient heat.
• The internal storage chamber utilises aluminium walls to conduct thermal energy directly away from the stored harvest.

Chatrabhuj Narsee School brings a new post-harvest solution to the agricultural sector. Dhruv Bora partnered with Shlok Goel and Yugandhara Gaikwad to build a prototype named Bio Frigid Box to prevent rural produce from spoiling during transit. The Class 11 and 12 team showcased their work at Sofitel in Bandra Kurla Complex, Mumbai. A jury featuring Dr M. A. Rehman from TIFR-DAE alongside AngelList India CEO Dhruv Sharma evaluated the finalists, with Google for Startups India Head Ragini Das also serving on the panel. These participants completed a structured syllabus that explored First Principles Thinking alongside Hypothesis Development. They also evaluated Systems Thinking before moving on to Innovation Defence and Jury Preparation.

The system maintains internal temperatures between 10°C and 15°C for up to 96 hours. A secondary water jacket adds further efficiency by remaining completely idle until the core solid medium melts entirely. This specific sequencing reduces unnecessary water circulation and lowers overall energy consumption.

Most passive coolers depend on inorganic salt hydrates that degrade rapidly over repeated freeze cycles. Alternatives like paraffin wax carry flammability risks alongside lower thermal conductivity. This design avoids those issues by relying on a coconut oil base. The team created a eutectic mixture by adding menthol, which specifically drops the melting threshold to accommodate soft-skinned crops. That same additive releases natural antimicrobial properties inside the chamber to actively suppress bacterial growth on the food.

Bio Frigid Box physical specifications and details

While three global universities are opening branch campuses locally to deepen formal academic training, high school inventors are already addressing critical grassroots challenges. Indian farmers frequently face extreme summer heatwaves alongside erratic electrical grids. Fresh vegetables often degrade before reaching wholesale markets, forcing growers into immediate distress sales at low margins. This hardware provides the necessary cooling window to transport items safely into urban centres.

The Unboxed Truth

Unbox Daily HQ sees genuine practical value in the Bio Frigid Box because it solves farm-gate spoilage without demanding mobile electrical generators. It doesn’t rely on expensive or fragile refrigeration hardware. You get a targeted thermal battery designed explicitly around accessible materials. Exact volume capacities require further field validation before full manufacturing begins. The underlying engineering remains exceptionally sound for rural applications.

Best for: Smallholder farmers transporting delicate goods across long distances without refrigerated trucks

Who Is This For: Rural agricultural logistics managers and farm cooperative operators aged 25 to 45

Courtesy: Chatrabhuj Narsee School