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Taste the waste - how rescued food waste makes individual cases

Food production residuals are everywhere. They are the rests from the production of food. It may be the organic farmer in your region or the local brewery next door who gives it away for free, because there is not much value in it for the food industry. We collect the residuals, dry them and shred them exactly to the right size to create a great texture and support the protective nature of our phone cases. You can take a deep dive into the different materials below or take a shortcut and trust our matching app 😊.

This is the story of our rescued food production leftovers – or how we like to nickname them: Sprinkles


Coffee Break

Whether you like the chat during a coffee break or are a hardcore V60 hand-filtering third wave coffee lover – Coffee Break sprinkles rescue your residuals and put them to good use.


kepu Coffee Break phone case material is made from coffee husks

Left: Coffee cherries after picking, Right: coffee husks - Leftover from coffee production


Worldwide coffee consumption is on an all time high: a whooping amount of 170.000 60-kilo-bags of coffee beans in 2020. Hard to imagine? That’s twice the weight of the Great Pyramid of Giza. Additional fun fact: Fins are world champions in per capita consumption, with almost 4 cups a day.

The beans for all this coffee are wrapped in a husk. Before the beans can be roasted, this husk has to be removed. The husks are partially turned into fertilizer, but are mostly dumped near the factories. The sheer quantities of this food production residual make it a popular raw material for the circular economy. Suggested uses range from biogas and bioethanol to base material for the extraction of bioactive compounds and the use in particle boards.

We found out, they make a beautiful texture in our phone cases. Next coffee break you can small talk how you made the world greener – how cool is that?


Sweet Candies

Sweet Candies sprinkles contain residuals from sugar beets. As the name suggests, a lot of sugar in Europe is extracted from it. We have many local producers of this beet in our region and a lot of residuals.


kepu phone case Sweet Candies material is made from sugar beets leftovers

Left: Sugar beet row © Wilhelm Dürr/Südzucker; Right: Dried sugar beet chips – Leftover from sugar production


Sugar beets are formidable plant full of energy. As part of a crop rotation they loosen the soil and lessen the risk of disease for the following crop. This means less use of chemical pestizides. Also it needs only halve the water of sugar cane to grow. And last but not least, one hectar of sugar beet binds 35 t CO2 and produces 26 t of oxygen.

Sugar beets contain about 20% of sugar. During sugar production this sugar is extracted from the beets. So, the sugar industry is leaving a lot of dried sugar beet chips behind. We suggest a very sweet and fashionable use: The sprinkles in our “Sweet Candies” material are made of dried sugar beet chips.


Forbidden Fruits

Forbidden Fruits sprinkles are made of pomace of the not so forbidden grapes and apples. Enjoy your wine or cider from the juice and we take care of the rest. Why we use them? Because using wine and cider residuals has special importance to us:


kepu phone case material Forbidden Fruit is made of apple pomace

Left: Bembel and Geripptes with local Ebbelwoi © Eva Kröcher, CC BY-SA 2.5 Right: Dried apple pomace – Leftover from juice production


Apple cider is a big part of the regional culture of southern Hesse in the middle of Germany. It is called “Ebbelwoi” or “Äppler” for short in the local dialect. It is served in nostalgic pitchers called “Bembel” and drunk in iconic glasses called “Gerippte”. If you should ever find yourself in the area around Frankfurt – do not miss out on it!

The apples for the beloved Ebbelwoi are grown in beautiful orchards. The orchards around our hometown have existed for centuries and provide the locals with apples, pears, cherries, plums, nuts, …. Because they are so old and were never turned into industrial monocultures, they burst with biodiversity and are therefore a welcoming feeding ground for bees and other pollinators. Juice and Ebbelwoi production leave behind the solid parts of the apple. We get our apple pomace from a small organic family owned farm only ten kilometers from our office. Together with grape pomace it sprinkles our Forbidden Fruit cases.


kepu phone case material Forbidden Fruit is made of grape pomace

Left: Grape ready for picking; Right: Dried red grape pomace - Leftover from wine production


One of our founders Carmen grew up on a grape farm. Winemaking in her home village dates back to at least 1328, when the winery is first mentioned. Wine making leaves behind the solid parts of the grape such as skin, seed and stem as pomace. It can be used as fertilizer and animal feed, but goes mostly unused. Knowing this and having a family owned source - it was only natural to include the grape peals into our Forbidden Fruit material.

Red grapes have most of the coloring in their skin. Did you know, that it takes a special step to get it out of the skin? Before pressing, the grapes are heated or fermented to break up the cells and get a nicely dark colored red wine. Otherwise, you’d get a rosé wine – which is still tasty. But luckily for us, the heating and fermenting still leaves enough color in the skins to give a nice contrast with the apple pomace. If you share the same passion for apples and grapes, have a look at our cases!


Best of Grain

Best of Grain is an homage to the world-famous German beer and bread culture.


kepu phone case material Best of Grain is made from beer brewing leftovers

Left: Vinzenz sourcing at our local brewery; Right: Dried spent grain - left over from beer production


Beer - elemental part of German culture. Germany is Europe’s top producer of beer with 8 billion litres in 2019 brewed in over 1500 breweries. That huge number comes to no surprise as we take great pride in our local breweries. Located in the heart of our hometown -Grohe Brewery has been brewing Darmstadt finest “Helles” since 1838. The beer can be tasted in the adjacent pub together with hearty pub food.

The base for beer is malted grain, often barley, which is heated with water to extract the starch which later will turn into alcohol. What is left over is called “treber” – brewer’s spent grain. It sports a high protein and fibre content and is therefore a healthy food additive for human and animals alike. It gives a delicious bread for example (Here is a sourdough and a yeast recipe). But no worries - breweries produce way more than can be eaten and we spotted a hoppy malty sturdy grainy fizzy frothy opportunity to lighten up your day as part of our Best of Grain material. Check it out!


Not sure which sprinkles to get?

Hey, you came all the way down here. Now you are an expert in all of our sprinkles. If you still can’t decide what suits your lifestyle most, have a look at our matching app 😊