Technology

Wakati is a solar-powered and standalone solution against food losses

Solar powered

1L of water per week

Store 200kg of crops

Our Technology

Protecting the crops

According to U.N. data, 45% of all fruit and vegetables is wasted before reaching the market. Wakati solves this problem by providing the world’s first standalone solution for the preservation of fruits and vegetables without using cooling.

With only one liter of water a week, Wakati enables you to store up to 200kg of fruits and vegetables. Powered by a small solar panel, no extra care is needed.

Inside Wakati Inside Wakati
Outside Wakati Outside Wakati

Our Research

Research Results from AVRDC

We have been testing our technology in the past years with the international research institution ARDC in Arusha, Tanzania.
See below an overview. You can also download the research results here.

Hypothesis of Wakati:

Keeping fruits and vegetables in premium quality at farm level will lower post-harvest losses throughout the whole supply chain. An on-farm storage will increase the quality of crops and the profitability of the smallholders.

Concept:

Affordable and low-energy on-farm fruits & vegetables storage for smallholder farmers in developing countries, without using cooling.
Smallholder farmers can store there produce on farm by a protective microclimate inside a tent with a storage of 200 -1000 kg. the protective microclimate works by 1) Increasing the humidity to keep cell structure in tact 2) ozone sterilisation to reduce mold growth 3) oxidising storage, the ripening hormone of fruits and vegetables by ozone.

Minimal viable product of Wakati:

Pop-up style tent, made of airtight fabric, contains the microclimate during the storage. A solar panel of 10 watt creates the high humidity atmosphere by ultrasonic evaporation and an electric corona discharge creates ozone. No additional chemicals are needed, just add water.

Outcome use-case:
On-farm storage is not the answer, famers want to push forward their produce and limit their risk, mobile phones has greatly increase the transparency of the marketplace. Great interest from collection points and out-growers schemes that transport to large cities or the West.

Outcome technology by trailing at "World vegetable center" in Tanzania:
Humidity adds high value especially on short storage of less than 5 days.
Ozone does not work consistently as sterilisation agent at acceptable concentrations
Ozone as ethylene oxidator has not been observed (despite theoretical backed by academic research)

Recommendations:

=> high humidity holds great promise as a simple yet effective way to address losses on short term (<5 days)
=> dont use ozone: no need for tent structure to keep the corrosive gas inside
=> ultrasonic can be replaced by water pressure trough spray nozzles: no need for solar panel or other electronics
=> collection points have tapwater, using this water pressure with a water hose with spray nozzles to increase the humidity will probably work just as well
=> could be interesting for during transportion, especially in India where crops are several days on the road

consequences:

=> business opportunity for a technological start-up is low as no patented or complex technology. Risks are higher than potential profits.
=> large business potential for local fruit export companies.
=> large business opportunities for local companies buying cheap off the shelve water hoses and spray nozzles

Inside Wakati Inside Wakati
Outside Wakati Outside Wakati
  • Wakati unit

Our mission is to deliver innovative solutions for the elimination of post-harvest food losses in the global food supply chain.

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