Grape Waste Transforms Oat Milk Into a Superfood Breakthrough

Scientists have found a way to boost the health benefits of oat milk using grape waste. Researchers at Ural Federal University developed a method to enrich the drink with grape pomace extract. The discovery comes as plant-based milk grows in popularity across Russia, driven by shifting diets and wellness trends. Chemists at the university's Laboratory of Biotransformation Technologies and Food Chemistry experimented with adding grape pomace extract to oat milk. Grape pomace, a byproduct of winemaking, contains high levels of polyphenols, dietary fibre, and compounds like resveratrol and quercetin. These nutrients are known for their antioxidant properties.

Tests showed that a 0.2% concentration of the extract delivered the best results. At this level, antioxidant activity in the oat milk increased by 58%. Polyphenol content nearly tripled, while flavonoid levels rose by more than 2.5 times. Higher amounts of the extract, however, caused problems. Too much led to a bitter taste and an unappealing dark colour. The team concluded that 0.2% struck the right balance between nutritional improvement and consumer acceptance. The research aligns with broader market trends. In 2025, plant-based milk sales in Russia climbed by 18.4%, with oat, soy, and almond drinks leading the growth. Plant-based cream alternatives saw the sharpest rise, up 38.6%, though the sector remains small compared to traditional dairy.

The enhanced oat milk offers a more nutrient-rich alternative to standard versions. The 0.2% grape pomace addition significantly raises its antioxidant and polyphenol levels without compromising taste or appearance. This innovation could appeal to health-conscious consumers as plant-based products continue to gain ground.