# Upcycled Brewing Protein Ingredients Duynie Transforms Brewers' Spent Grain into Protein By Mursal Rahman | Written with AI assistance | Published 2026-11-11 | Lifestyle Source: Trend Hunter, https://www.trendhunter.com/trends/upcycled-brewing-protein-ingredients References: [foodbev](https://www.foodbev.com/post301/duygrain-targets-longer-lasting-freshness-in-bread) & [duynie](https://www.duynie.com/de-de/news-insights-overview/comparing-brewers-spent-grain-with-its-protein-concentrate-variant/)  Upcycled brewing protein ingredients are creating new opportunities for food production as Duynie develops DuyGrain, a concentrated protein source made from brewers' spent grain. The company uses a patented separation process to transform this beer production byproduct into an ingredient suitable for human and [pet food applications](https://www.trendhunter.com/trends/veli), offering an alternative to [conventional protein sources](https://www.trendhunter.com/trends/alternative-protein-technologies). Traditional brewers' spent grain contains approximately 20% protein and 70% fiber. DuyGrain increases protein concentration to more than 50% while reducing fiber content to 25%. Its consistent quality makes it suitable for applications such as [meat alternatives and bakery products](https://www.trendhunter.com/trends/fudi-protein), where reliable ingredient performance is important. For Duynie, the process creates commercial opportunities by turning brewing residues into higher-value food ingredients. Food manufacturers could benefit from additional protein options with a lower environmental impact than conventional meat and dairy proteins, supporting more resource-efficient production. Image Credit: Duynie ## Trend Insights (Trend Hunter) - Score: 10.0/10 - Popularity: 100% | Activity: 100% | Freshness: 100% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: Europe ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Lifestyle](https://www.trendhunter.com/lifestyle) > [Food](https://www.trendhunter.com/food) ## Key Themes ### What Makes This Trend Stand Out - **Upcycled Protein Ingredients:** Food producers are finding value in converting agricultural and brewing byproducts into concentrated proteins that support lower-impact product development. - **Circular Food Manufacturing:** Waste streams from established production systems are becoming inputs for higher-value ingredients, reshaping how manufacturers approach resource efficiency. - **Alternative Meat Formulation:** Consistent plant-based protein sources derived from residues can expand formulation possibilities for meat substitutes and hybrid food products. ### Sectors Adopting This - **Food Ingredients:** Ingredient suppliers can differentiate through patented processing methods that transform low-value byproducts into functional nutrition inputs. - **Pet Food:** Pet nutrition brands may benefit from sustainable protein ingredients that offer reliable composition while reducing dependence on conventional animal proteins. - **Brewing:** Breweries gain new relevance in circular supply chains as spent grain becomes a commercial feedstock for human and pet food applications. ## Related on Trend Hunter - [Next-Generation Bread Ingredients](https://www.trendhunter.com/trends/panvivo-gpl1ve-bread-concentrate.md) - [Gluten-Free Bakery Ingredients](https://www.trendhunter.com/trends/gluten-free-bakery-ingredients.md) - [Upcycled Prebiotic Fibers](https://www.trendhunter.com/trends/benicaros-sf-pure-p-trend.md) - [High-Protein Baking Mixes](https://www.trendhunter.com/trends/beyond-clean-label.md)