Mitticool Clay Refrigerator
Mitticool is a clay-based evaporation refrigerator that does not require electricity.
Mitticool is a natural refrigerator made entirely from clay to store vegetables, fruits, milk and also for cooling water. It provides natural coolness to the stored material without requiring any electricity or any other artificial form of energy. Composed of various clay chambers, water from an upper chamber drips down the sides of the unit and evaporates, thereby removing heat from the inside out.
Goal 2: Aims to improve food security and nutrition by enabling proper and longer preservation of food in rural areas.
MittiCool target users are individuals that are part of the rural, off grid, low-income economic segment. Interview with representative
5000 units have been sold as of October 2013. Interview with representative
The holding volume, measured in liters
Length of time it takes to cool products, measured in hours
Time the products remain cold, measured in hours
Is there a way to control temperature?
Maximum internal temperature, measured in degrees Celsius
The materials used in construction
Does the product prevent insects from entering the chamber?
What is the medium for cooling?
- MittiCool is made of porous, terracotta clay.
- It is composed of various clay chambers: water from an upper chamber drips down the sides of the unit and evaporates, thereby removing heat from the inside out.
- While the upper chamber is used to store water, food may be stored in the lower compartment, comprised of two shelves. The first shelf can be used for storing vegetables and fruits, and the second shelf can be used for storing milk, meat and other foods.
Technical specifications and instructions can be found on the manufacturer’s website.
Because it is monolithic in design, there are no replacement components except for replacing the whole unit.
The manufacturer claims that the product is durable and would last a long time.
During testing, the shelf life of coriander was extended by 4 days as against 1.5-2 days in room temperature. Shelf life of vegetables like brinjal, chilly & okra was increased on an average by 5-6 days vis-à-vis room temperature.
Gujarat Grassroots Innovation Augmentation Network (GIAN) Indian Institute of Management, Ahmedabad and the National Innovation Foundation extended their help in the form of grant and guidance for getting the patent, making the packaging box and lab testing of products.
No known safety hazards.
Mitticool company provides a range of earthen ware products.
Ch. Siddharth Nanda et.al. Relevance and Implications of Grassroots Innovations in India, International Journal of Innovative Research and Studies ISSN 2319-9725 Vol.2 Issue 10 (October 2013)
Manufacturer claims to have received ISO certification.
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