# Portable Eco Fridges Evaptainers are a Mobile and Sustainable Way to Keep Food Fresh and Cool By Alyson Wyers | Published 2016-09-17 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/eco-fridge References: [springwise](http://www.springwise.com/ancient-cooling-method-used-electricity-free-fridge/) & [evaptainers](http://www.evaptainers.com/) This eco fridge demonstrates the newest technology is not always the most disruptive. Evaptainers are "sustainable refrigeration units" that use an ancient cooling method to keep your food from spoiling. The [electricity-free refrigerators](https://www.trendhunter.com/trends/totem) only require sun and water to work. The 4000 year old non-electric refrigeration technology also renders the appliances mobile, making it easier to keep food fresh for longer when you are on the go. The [portable eco fridge](https://www.trendhunter.com/trends/amity) has water between two containers that evaporates, which also removes the heat from the inside container. This is capable of keeping contents 35 degrees Fahrenheit cooler than they would be outside. The lightweight, flat pack design will likely appeal to [campers and hikers](https://www.trendhunter.com/trends/freezill-soft-cooler) in addition to less developed communities where food security is an issue. ## Trend Insights (Trend Hunter) - Score: 5.4/10 - Popularity: 72% | Activity: 81% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America, Africa ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### Key Themes Behind This Trend - **Sustainable Refrigeration:** There is an opportunity for businesses to innovate by creating sustainable refrigration products without electricity. - **Ancient Design Revival:** The revival of ancient designs present an opportunity for businesses to innovate and bring acient design technology to the mainstream. - **Portable Refrigeration Units:** There is an opportunity for businesses to create portable refrigeration units that are accessible to everyone including campers and hikers. ### Where This Applies - **Appliance Industry:** The appliance industry can innovate by investing in sustainable cooling technology without electricity. - **Camping Industry:** The camping industry can invest in innovation by creating portable refrigeration units to make camping more enjoyable and sustainable. - **Emerging Markets:** Emerging markets can invest in innovation by creating sustainable refrigeration solutions accessible to all. ## Related on Trend Hunter - [Energy-Efficient Portable Fridges](https://www.trendhunter.com/trends/energyefficient-portable-fridges.md) - [Portable Ice Maker Refrigerators](https://www.trendhunter.com/trends/ecoflow-glacier.md) - [Backpack Car Fridges](https://www.trendhunter.com/trends/litheli-frozenpack.md) - [Wheel-Base Smart Refrigerators](https://www.trendhunter.com/trends/fridze.md) - [Portable Freezer Integrated Backpacks](https://www.trendhunter.com/trends/litheli.md) - [Portable Dual-Compartment Fridges](https://www.trendhunter.com/trends/portable-dualcompartment-fridges.md) - [Ice-Free Fridge Coolers](https://www.trendhunter.com/trends/fridge-cooler.md) - [Electricity-Free Beer Fridges](https://www.trendhunter.com/trends/bud-ground-cooler.md) - [Eco Power Ice-Free Coolers](https://www.trendhunter.com/trends/lioncooler-pro.md)