This Device Turns Kitchen Waste Into Compost

This Device Turns Kitchen Waste Into Compost
Design

The Taihi bin uses a Japanese fermentation process called bokashi to breakdown biodegradable materials and produce compost

Zack Palm
  • 28 july 2017

Homeowners don’t have many options when it comes to how they want to handle their waste and don’t know what to do with their biodegradable materials. They can always attempt to create a composting bin, however, the smell and liquid waste left behind by this material makes the process messy and difficult in small apartments or homes. Ben Cullis Watson, a British product designer, wants to handle the waste problem with his design called the Taihi rubbish bin. A homeowner with the Taihi bin in their house can keep their unit inside with them much like a traditional garbage bin and not worry about the dreadful decaying odor roaming throughout their home.

Taihi_Bins_Use_A_Small_Accelerator_Fluid_To_Start_The_Fermentation_Process.jpg

Watson wanted to do a different method than traditional composting bins use, as many on the market rely on worms decomposing the material or require the owner to spin the bin every so often. Instead, Watson stumbled upon a Japanese method known as bokashi. In this process, the owner uses a fermentation process to break down the materials. Normally, those who use the bokashi method have to mix their waste material in with a batch of bran, packing the two together tightly as the mixture fermentations for 10 to 12 days in a sealed bucket. The British designer simplified the process.

Taihi_Bins_Keep_The_Smell_Of_Decaying_Waste_Contained.jpg

Rather than requiring a homeowner to pack the material down with bran, Watson developed an accelerator mixture that starts this fermentation process. The accelerator goes into a tiny replaceable vial to go inside of the top of the container when the owner wants to convert their materials into compost. The process does take 12 to 14 days and during this time the top of the Taihi bin sprays the vial’s contents over the food waste as it breaks down into a compost. When the process finishes, the owner take the containers out and place their newly made compost on any plant they wish to fertilize. Some of the material also gets converted into a liquid, which goes to the bottom of the bin into a sealed watering can for the owner to use as they please.

The Taihi bin comes with two 20 liter containers covered in a non-stick coating to make it cleaning up after a fermentation process quick. Watson wanted to ensure the aroma stayed inside of the container as much as possible by designing the bin to have a double-lid system, along with a rubber seal. After each fermentation process the owner must purchase a new accelerator mixture, which would mean they would have to purchase one a month if it takes two weeks to fill the container and another two weeks for the materials to breakdown.

Watson plans to create a second iteration of the Taihi bin, while also reviewing the future the product could have on the market.

Taihi Rubbish Bin

Homeowners don’t have many options when it comes to how they want to handle their waste and don’t know what to do with their biodegradable materials. They can always attempt to create a composting bin, however, the smell and liquid waste left behind by this material makes the process messy and difficult in small apartments or homes. Ben Cullis Watson, a British product designer, wants to handle the waste problem with his design called the Taihi rubbish bin. A homeowner with the Taihi bin in their house can keep their unit inside with them much like a traditional garbage bin and not worry about the dreadful decaying odor roaming throughout their home.

+Design
+Food
+home
+Innovation
+Kitchen
+Product Design
+recycling
+Sustainability
+technology
+UK
+waste

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