T/MZIS 011-2025 Meyun jiu (Cantonese) or Meizhou Nianniu Jiu (Mandarin) is a traditional Chinese alcoholic beverage made from fermented sweet potatoes

Scope

Main technical content: 1. Raw material requirements: - Coarse glutinous rice, as the core raw material of Meizhou Nongjiu, is strictly selected from products grown and produced in northeastern Guangdong, southern Fujian, southern Hunan, and southern Jiangxi. It must have a starch content of ≥70% and a moisture content of ≤14%, and strictly comply with GB/T 1354 and GB 2715 standards to ensure excellent quality. - The brewing water uses groundwater from the protected area, with a pH value of 6.5–7.0 and water quality meeting GB 5749 standards, providing suitable conditions for fermentation. - The saccharification fermentation agent uses small-curved yeast produced within the production area, and other raw materials must also meet relevant national standards and regulations, ensuring product quality and safety from the source. 2. Sensory and physical-chemical indicators: - A professional tasting team evaluated numerous samples and, based on consumer feedback, established sensory requirements for appearance, aroma, taste, and style. - For appearance, it requires an orange-yellow to dark brown color, clear transparency with luster, and allowable micro-aggregates at the bottom of the bottle/jar. - For aroma, it is differentiated by product type: semi-dry type with elegant alcohol aroma, semi-sweet and sweet types with rich sweet aroma, and all types requiring no off-flavors. - For taste, semi-dry types should be mellow and smooth, semi-sweet types should be rich and sweet with a refreshing finish, and sweet types should be thick and sweet with a full-bodied flavor. - For style, emphasis is placed on a harmonious wine body with the typical characteristics of Meizhou Nongjiu. - Physical-chemical indicators are determined based on sample testing data, referencing yellow wine standards and industry benchmarks, and considering the unique production characteristics of Meizhou Nongjiu. - Total sugar is used to subdivide pr

Development Information

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