Hay milk is a niche product in Germany, accounting for 0.2% of the country's total milk and 3% of Europe's milk. Despite its small market share, it has shown promising growth, with interest from both farmers and dairies. Hay milk is produced from cows that are grazed on species-rich meadows and fed fresh grass and herbs in summer and hay in winter, never fed fermented feed like silage. The product is more expensive than regular milk, with an average price of €1.44 per liter. Hay milk farmers and processors can be certified under the g.t.S. EU seal of approval and the green Heumilch logo, signifying adherence to strict production regulations.