Molybdenum Stainless Steel Barrels for Wine Making
Acid-resistant molybdenum grade stainless steel barrels and related equipment are essential for the production of many alcoholic beverages. They are used in alcohol fermentation, brewing, aging, storage and transportation. Molybdenum products are hygienic and easy to clean, helping producers create sophisticated and elaborate alcohol products from the high-end market to the mass market.
As the world’s population grows, global alcohol consumption has risen to its highest level ever. However, in recent years, the per capita annual consumption of alcohol has been 4.3-4.7 liters of pure alcohol. Among them, spirits account for about half (50%) of the total, followed by beer (35%) and wine (8%). Although beverages and their processes are very different from each other, they all require hygienic special equipment, such as acid-resistant molybdenum grade stainless steel equipment.
The raw materials for each beverage, whether it is grapes, rice or berries, the processing steps determine the best materials for the process equipment. Molybdenum stainless steel has excellent hygiene, corrosion resistance, cleanability, durability and lightweight. Importantly, they do not contaminate the taste or color of the product and therefore dominate the market for alcoholic beverage equipment.
The production of alcoholic beverages begins with the pressing of raw materials and then boiling. Their chemistry, especially their acidity, determines the best choice for stainless steel grades. Stainless steel barrels must be made of chemically resistant materials and meet the specific requirements of the alcohol produced. The same is true for other production stages before and after fermentation. Every type of drink is different, but wine requires the most complex and delicate process.
The winemaking process is usually carried out in a molybdenum stainless steel vat. The natural acidity of white wine is much higher than that of red wine. The combination of high acidity and SO 2 added as an antioxidant increases the corrosiveness of wine and wine. Therefore, the incorporation of 2% molybdenum in 316 or 316L stainless steel improves the corrosion resistance of stainless steel barrels. Red wines are less corrosive, so Type 304 stainless steel is usually sufficient for vats and is the most widely used.
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