Using Potato Peels for Single Use To-Go-Containers

18.01.2019

Moreover we started working on the finding circular systems for food waste streams by turning them into new materials. Potato peels seemed like a great start for this, since they already contain starch and a kind of filling material.

So every day we collected the peels from our kitchen (turns out you throw away a lot of peels when you live and eat with 40 people everyday!) and processed them into a powder by drying and shredding them. Next we did a lot of research (check out these awesome guys for the uk: chipsboard.com) and started working on material recipies. I was very fascinated by the variety of material properties we could achieve by simply changing the ratio of water and peels and the size of the chips we used. Some of the material looks see through and really leather-like, while other parts look more like mdf boards and get really hard and strong. Check out the pictures at the end to get an impression!

Edibles From Wheat Bran + Disposables From Potato Peels = A Lot Less Single Use Plastic In Our World


Then we started to work on the process. I still believe that the process for most basic biomaterials is the same. Water needs to leave, in order for the binder to do the job. Plus pressure is also a good idea for a lot of them, especially if you want to produce sturdy objects.

So we continued working with the heatable mold I made for the wheat bran dish, but tried out a few other processes as well, since we could make a super fine paste out of the peels as well. And the results were quiet nice: Molding a spork with an extrusion machine (could also be a strong injection machine) it turned out that the material gets super smooth and strong. Pretty much like plastic actually ;)

So now we will take it to the next level and already started CNC cutting the next mold to make a real To-Go-Container from this material. I think it's perfect for this, since it is 100 percent biodegradable and can be composted everywhere and by anyone. I'll keep you updated on that!

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