Coffee Silver Skin: A Hidden Treasure! Japan Innovates with Eco-Friendly Straws and Tissues from Coffee Bean Husks!

Compared with the beans themselves, the silver skin wrapped around every coffee bean always seems unremarkable. Yet this thin protective layer has surprisingly become a recycling target: a Japanese beverage manufacturing company has teamed up with a coffee company to make drinking straws out of coffee silver skin!

As end consumers, we only ever see coffee in liquid form or as roasted beans. We rarely think about what coffee goes through from fruit on the tree to finished product - or what waste it generates. In roasting, a step most people never witness, significant amounts of silver skin are produced. As the final protective membrane of green coffee beans, the silver skin partially detaches during roasting. To some coffee enthusiasts, it even noticeably affects flavor. Compared with the universally beloved beans, the silver skin gets no love at all.

Coffee Waste Innovation

If spent coffee grounds can be recycled into raw materials for new products, remember how Starbucks turned recycled grounds into "grounds straws"? Those ended paper straws' reign in the beverage industry and freed coffee drinkers from the unpleasant experience of sipping paper-flavored coffee.

Both come from the coffee fruit - but while coffee grounds shine in the environmental spotlight, what happens to the silver skin (chaff) that flakes off during roasting? After all, roasters paid for it when they bought their inventory.

Silver Skin Straws

Answering complaints that paper straws turn soggy and taste papery, Ito En and Tully's Coffee jointly developed a paper straw blended with coffee silver skin, with water resistance and the ability to preserve each drink's true flavor. According to Ito En, the silver skin from just 10 grams of coffee beans yields two straws - and the straw's surface shows the distinctive texture of the silver skin itself.

Availability and Other Uses

The paths to a coffee lover's happiness now extend beyond grounds straws and PLA straws, with silver skin straws as another strong contender. Which of the three brings the most joy is hard to say - because silver skin straws are only available at Ito En's directly-operated stores and select Tully's Coffee locations in Japan. Yes, only in Japan, which means coffee lovers elsewhere can't yet enjoy them.

Silver skin has more uses than straws, too - there are even silver skin napkins. Long before the straws launched, Tully's Coffee had been offering customers eco-friendly napkins containing coffee silver skin since July 2012.

Environmental Impact

Although neither the straws nor the napkins are made of 100% silver skin, blending it in reduces wood-pulp use - at least a first step toward sustainability.

Coffee-grounds products are now easy to find on the market, but items made from silver skin remain rare. Perhaps one day you'll be able to buy merchandise containing coffee silver skin. If enthusiasts keep exploring the full potential of the entire coffee fruit, the joys of a true "coffee house" - nothing wasted - may be within reach.

Image source: Internet

FrontStreet Coffee Recommendation

Thinking about silver skin and chaff is a good reminder of how much roasting shapes a bean's character. For a balanced cup that suits nearly everyone, medium roast is the sweet spot. FrontStreet Coffee's Brazil Fazenda Rainha - the rare Yellow Bourbon variety from the world's largest coffee-producing country - is gently sweet and mellow after medium roasting, revealing cream, peanut, chocolate, toast, and sugarcane notes; it works beautifully as pour-over, moka pot, or espresso.

For a sweeter, fruit-forward medium roast, the FrontStreet Strawberry Candy Geisha blend unites two famous origins - honey-processed Costa Rica and washed Panama Geisha - showing orange-blossom honeyed aromatics and a rounded sweetness across cold brew, pour-over, or espresso. And for a domestic classic, the 2013 Yunnan Typica delivers the authentic China Yunnan profile with soft notes of nuts, brown sugar, black tea, and dried apricot, while the Jamaica Blue Mountain No. 1 - medium roasted to fuse its acidity, bitterness, sweetness, and body - offers chocolate, roasted nuts, cream, and caramel in an elegant balance no other coffee quite matches.