Neutral alcoholic malt base for hard seltzer
GEA’s cross-flow membrane filtration units have been specifically designed to deliver a clear, colorless, tasteless and aroma-free neutral alcoholic base. The neutral alcohol base used in a hard seltzer derives from a fermentation process with no distillation step.
The rise of hard seltzers continues at a strong pace! These alcoholic beverages containing carbonated alcoholic water and various flavors are becoming increasingly popular and, at the same time, the need for cutting-edge manufacturing equipment to meet consumer demand is also growing.
The neutral alcohol base used in a hard seltzer derives from a fermentation process with no distillation step. And although the fermentation stage is similar to that used in beer production, the carbohydrate source is normally a simple sugar rather than malted barley. As a result, byproducts such as residual sugar, salts and long-chain color/aroma components often occur.
As part of the downstream processing stage, it’s necessary to remove these flavors, aromas and/or colors from the seltzer base to ensure the production of pure, clean end product and ensure a high-quality neutral base for hard seltzer
GEA’s membrane filtration unit can be designed for both batch or continuous mode, can be custom made to accommodate a wide range of plant sizes and capacities and comes with a dedicated clean-in-place (CIP) system. If required, an additional polishing step can be included to produce a higher quality base material.
With flexibility in mind, these modular units can easily be integrated into an existing brewery to create a flavored alcoholic beverage process line. Furthermore, they’re compact, low cost, well-automated, and efficient to run. Minimal operator intervention is required.
Key benefits of the membrane unit
As a trusted supplier of equipment and engineering expertise to the beverage sector, over 100 membrane units have already been purchased from GEA to purify alcoholic bases produced by fermentation around the world. As well as being able to process fermented sugar solutions, the technology has often been used to handle a wide range of other alcoholic products, such as beer or cider.
For customers wishing to test a product sample, scale-up or optimize a process, or compare the results or capabilities of different types of membranes, contact our knowledgeable experts and arrange a trial.
GEA cross-flow filtration with robust ceramic membranes are used for the effective recovery of beer from tank bottoms. Modular plants are supplied on compact skids in three standard sizes with processing capacities of approximately 250 hl, 500 hl and 1000 hl per day depending on the dry solids content of the product.
أصبح من الممكن الآن استعادة أكثر من 90 في المائة من محلول المادة الكاوية المستهلك باستخدام أغشية الترشيح النانوي المقاومة للأس الهيدروجيني (NF). تشمل الفوائد خفض تكاليف التشغيل وتحسين الأداء.
يُستخدم مكثف محطات التبخير كمياه تغذية للمرجل والمعالجة والتبريد ومياه الشطف أو يتم تصريفه مباشرةً في حفرة التصريف. ولهذا الغرض، تجب تنقية المكثفات. ويمكن إزالة الشوائب الموجودة في البخار المتكثف عن طريق الترشيح بالغشاء، في حالة معينة عن طريق التناضح العكسي، ويمكن تحقيق الخصائص العالية للمكثف.
يدعم نظام AromaPlus المخصص معدلات التغذية الصغيرة إلى الكبيرة، كما أنه قابل للتكوين للتشغيل المستمر والعمل على دفعات، ومبني على تقنية الترشيح بالغشاء مع التناضح العكسي (RO).