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冷麥汁充氧的重要性及如何實現高效充氧

作者：山東天泰人氣：发布日期： 2024-04-22

信息摘要：

在啤酒釀造過程中，冷麥汁充氧是不可或缺的一環。

在啤酒釀造過程中，冷麥汁充氧是一個至關重要的步驟。啤酒酵母作爲兼性微生物，需要在有氧條件下生長繁殖，在無氧條件下進行酒精發酵。因此，在進入發酵階段之前，酵母需要繁殖到一定的數量，這個階段是需要氧的。爲了滿足酵母繁殖的需求，我們需要向冷麥汁中通入無菌空氣，使麥汁中的溶解氧達到8~10mg/L。

那麽，爲了加強空氣在麥汁中的溶解效果，必須通入很細小的氣泡，並以渦流形式與冷麥汁進行混合。爲了達到這個目標，我們可以采用文丘裏管这一充氧裝置。文丘裏管是一种两端截面大、中间有紧缩段的管子。当麦汁流过文丘裏管时，由于截面突然减小，流速增大。在紧缩段通入无菌空气，空气就会被快速吸入麦汁中，并以微小气泡形式均匀分散于高速流动的麦汁中。麦汁的截面增大处形成涡流状态，有利于麦汁与分散、细密的气泡充分接触并混合均匀。

在實際生産中，爲了使麥汁中的溶解氧達到8~10mg/L，理論上每百升麥汁約需3L空氣。然而，由于一部分空氣未溶解而溢出，以及通入的空氣分布不均勻，實際操作中需要通入10倍的空氣量。此外，隨著麥汁溫度和濃度的提高，氧的溶解度有所降低，這也是我們在充氧過程中需要考慮的因素。

总之，冷麥汁充氧是啤酒釀造过程中不可或缺的一环，作为一家的专业啤酒設備厂家，我们致力于为您提供高品质、高效率的充氧解决方案，助力您的酿造事业更上一层楼！

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本文標簽：啤酒釀造精釀啤酒廠啤酒設備文丘裏管充氧裝置

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