Home Solution GrainPro Solar Bubble Dryer
United States

GrainPro Solar Bubble Dryer

Conservation and biodiversity / Sustainable agriculture

The GrainPro Solar Bubble Dryer™ is a portable, tunnel-type solar dryer that safely dries crops like rice or coffee, preventing rewetting and contamination, and preserving product quality and nutritional value.

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Grain Pro

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Info

Available

To sell

Looking

To find distributors

Project Status

In commerce

Looking to expand internationally

Yes

Doing business in

worldwide

Awards and certifications

Climate Innovation Award,

2019

Honored for using solar energy to reduce food loss in agriculture.

Energy Globe Award,

2020

Recognized for solar-powered drying technology improving crop quality and sustainability.

World Bank Development Marketplace

2014

Awarded for scalable post-harvest innovations aiding smallholder farmers.

Product description

The GrainPro Solar Bubble Dryer™ is an innovative, passive solar drying solution that enables safe and efficient drying of agricultural commodities such as paddy rice, coffee, and maize. Designed with a tunnel-shaped structure made of UV-resistant polyethylene, the Bubble Dryer™ creates a micro-climate that optimizes solar heat retention while shielding crops from rain, insects, and environmental contaminants. Ventilation is controlled to ensure consistent drying, and built-in airflow systems can be integrated with low-energy fans for improved performance. The design prevents rewetting, a common issue in traditional open sun drying that leads to mold, mycotoxins, and quality degradation. It is collapsible, easy to transport, and suitable for use on farms, at cooperatives, or during emergency food relief. The Solar Bubble Dryer™ supports food security efforts by helping farmers reduce spoilage and maintain higher product value. Its chemical-free and energy-efficient approach makes it an ideal tool for climate-smart agriculture.

 

Key characteristics and environmental benefits

Key Characteristics:

  • Tunnel-type solar dryer made from UV-resistant, food-grade plastic

  • Creates controlled drying environment with natural airflow

  • Optional integration with solar-powered fans

  • Collapsible and easy to deploy, store, or transport

  • Protects against rain, insects, and dust during drying

Environmental Benefits:

  • Replaces chemical or fuel-based drying methods

  • Uses renewable solar energy, reducing carbon footprint

  • Reduces crop spoilage and food waste

  • Enables clean drying even in high-humidity regions

  • Promotes sustainable farming practices 

 

About the Company

GrainPro is a global leader in sustainable post-harvest solutions, dedicated to minimizing food waste and chemical dependence across agricultural supply chains. By developing hermetic storage and drying technologies, the company creates oxygen-limiting conditions that inhibit pest infestations and mold growth—without relying on toxic fumigants or pesticides. This approach not only preserves crop quality and nutritional value, but also drastically reduces greenhouse gas emissions associated with producing, transporting, and discarding spoiled commodities. GrainPro’s commitment to sustainability is evident through its emphasis on durable, reusable materials and participation in recycling programs that minimize plastic waste. From smallholder farms to large-scale operations, each GrainPro solution aims to safeguard harvests, protect public health, and support resilient rural livelihoods. Through continuous research, innovation, and community engagement, GrainPro envisions a world where every farmer can store harvests reliably and consumers enjoy safe, high-quality foods.

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