A method for manufacturing an edible, multi-ring, can holder comprises the steps of dehydrating beer by-product to produce a dried pulp, grinding the dried pulp into a powder, forming a pulp slurry by adding the powder into a mixture comprising plant fibers, an environment-friendly, oil-repellent chemical, an environment-friendly, water-repellent chemical, and water, a water-to-other ingredient ratio being approximately 1000 liters of water to approximately 60 kg of the powder, the plant fibers, the oil-repellent chemical, and the water-repellent chemical, injecting the pulp slurry into a mold having an interior cavity in the shape of at least one six-pack ring, and applying pressure and heat to the mold containing the pulp slurry to produce at least one edible six-pack ring.