About Groundloop

Brewed here. Grown here.

Groundloop starts with a simple idea: your neighborhood café’s spent grounds deserve another chapter. We turn them into café-branded oyster mushroom grow kits that bring the story from the coffee counter to your kitchen.

Your latte grew this.

Each kit includes a bag of colonized coffee-ground substrate and a simple instruction card. Follow the care steps, watch your mushrooms emerge, and enjoy the transformation from coffee grounds to a freshly cooked meal. Growing time varies with conditions; the typical sprouting window is about 7 to 10 days once growing begins.

A local loop, not a distant supply chain

Our focus is independent cafés and small roasters. The pilot model offers free grounds pickup and kits on consignment, so cafés can explore a new retail offering without purchasing inventory upfront. Café branding keeps the origin of each kit part of its story.

Small beginnings, thoughtful growth

We are building Groundloop through small café pilots, with consistency and clear growing instructions at the center. Future Grow Log and return-loop ideas will develop alongside the pilot; availability and participating café details will be shared as they are confirmed.

Share your growing progress with #BrewedHereGrownHere. A little everyday wonder is worth passing on.