Spent Brewer's Grain Transforms into High-Protein Milk Alternative in Germany

Munich, Germany — 06 July 2026

Food tech company Circular Grain is leveraging byproduct streams to innovate within the rapidly expanding dairy alternatives sector. Their new product, Tremi, is a milk alternative created from spent brewer’s grain, a byproduct traditionally relegated to animal feed. This initiative, highlighted within Amazon’s 2026 Sustainability Accelerator program, underscores a growing industry focus on upcycling industrial waste into high-value consumer products.

The market for milk alternatives continues its rapid expansion, driven by consumer demand for plant-based, health-conscious options. Innova Market Insights reports a 5% global increase in high-protein dairy alternative product launches from April 2021 to March 2026. Circular Grain’s Tremi aims to capitalise on this trend by offering a high-protein, reduced-sugar profile, claiming three times more protein and six times less sugar than typical oat milk. This nutritional density, coupled with its circular economy credentials, positions Tremi as a strong contender in a competitive market segment.

Circular Grain's founders emphasise the environmental benefits, noting that repurposing spent grain lessens reliance on new agricultural land and imported raw materials. This approach aligns with broader industry movements towards sustainable sourcing and waste reduction. The initial launch of Tremi Original and Tremi Barista varieties is slated for September this year, targeting the greater Munich area through cafés, retailers, and direct consumer engagement.

The company, which began as a student project at the Technical University of Munich, has already secured over €500,000 in funding through grants and angel investments. Their participation in the Amazon Sustainability Accelerator provides critical technical and scaling support, demonstrating how major e-commerce platforms are increasingly funding innovative, waste-reducing solutions that can eventually reach wider markets.

What this means for Germany

German supplement and food manufacturers should assess the potential for integrating upcycled ingredients like spent brewer's grain into their product development pipelines. The initial launch in Munich provides a testbed for consumer acceptance and market viability. Brand owners should monitor Tremi's retail performance in Q4 2026 for indications of consumer appetite for high-protein, circular economy-driven milk alternatives. This trend points towards opportunities for local sourcing arrangements with breweries, potentially stabilising supply chains and reducing raw material costs compared to traditional plant protein sources. Regulatory bodies like the Bundesinstitut für Risikobewertung (BfR) will be scrutinising novel food applications involving upcycled materials, so robust safety data will be paramount for widespread adoption.

The emphasis on circularity also provides a significant marketing advantage, resonating with environmentally conscious German consumers. Brands introducing similar upcycled ingredients can leverage these sustainability narratives for enhanced market positioning and premium pricing strategies, especially in the functional beverage and plant-based protein categories. Furthermore, the success of Tremi could stimulate further investment and innovation in Germany’s agri-food tech sector.

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