GEA's continuous extraction solutions are engineered to redefine efficiency for the coffee and herbal extract industries. Designed specifically to deliver optimal yield and precision control, the GEA CONTEX system provides a reliable, automated and scalable alternative to traditional batch extraction - delivering higher-quality extracts with minimal resource use across both hot and cold brew processes. It is also applicable to a wide range of health and herbal products, such as leaves, stems and roots.
Traditional batch extraction can be slow, inconsistent and require significant resources. GEA’s continuous extraction technology streamlines the process, significantly reducing extraction times while improving extract quality, flavor and aroma retention. By automating key steps and ensuring a continuous, controlled flow, our system enhances throughput, maintains consistency and minimizes waste - offering a cost-effective solution for high-volume, efficient production.
CONTEX 抽出装置は、真の連続逆流抽出を特徴としています。固体は、重力またはボリュームの計量に従ってプロセス容器の下端に送られた後、2 本の逆回転するミラー状のらせんネジ (制御スリップ付き) により抽出機を通って上に送られます。固体は、ネジの約半分の速度で回転し、2 つのオーバラップする円筒を通過します。
新鮮な抽出液は上端に入った後、勾配が制御された重力に従い、水面下のストリームとして断面領域の下半分に流れ込み、両方のフェーズで理想的なプラグフローに近い状態で、うまく制御された真の逆流抽出に入ります。ネジの速度は、固体に必要な滞留時間が得られるように、調整されます。液体のフローは、抽出物の濃縮が最適なものとなるように、独立して調整されます。
下端では、特殊な自浄式フィルタおよびレベル制御槽から抽出物が出ます。抽出された固体は、上端で少し絞られた後、続いて排出されます。滞留時間は、製品によって異なりますが、約 0.5~2 時間です。
CONTEX は、2,700 l (2.7 m3) 以下のユニットで利用できます。容量は、500~1000 kg/h (原材料) です。
Unlike conventional extractors, CONTEX integrates four extraction stages into a seamless, automated process. The counter-current design optimizes temperature control and residence time, maximizing product recovery while minimizing energy and water consumption. Our expert use of advanced automation maintains a focus on ease of use for operators, at the same time maintaining consistently high extraction performance in both hot and cold brew processes.
The system delivers additional benefits, such as lower building height requirements as standard, as well as being at a safer, more accessible level for operators in terms of inspection and maintenance. The system is able to operate 24/7, significantly reducing both sanitation and maintenance intervals that require scheduled downtime and also the risk of human error.Our continuous extraction system features an inclined trough with heat transfer jackets for precise temperature control. Raw materials enter at the lower end and are transported upwards via a double helicoidal conveyor, ensuring even transport of the material to be extracted. Meanwhile, the extraction liquid flows downward in a counter-current motion, optimizing percolation and yield.
Available in six standard sizes (27, 180, 300, 830, 1400 and 2750 liters), the CONTEX system adapts seamlessly from pilot-scale testing to full-scale production. Able to efficiently process a wide variety of raw materials, including coffee, barley, tea, health foods and natural medicines, the system delivers maximum flexibility against ever-evolving industry needs.Resource-efficiency is an important consideration in our continuous extraction solutions. In the CONTEX, the system’s counter-current extraction method reduces water consumption while maximizing extract concentration, lowering the need for additional decanters and concentration stages. By optimizing energy use, for example through the use of advanced heat exchange technology, and minimizing waste, our technology supports resource-efficient production without compromising performance.
Process safety is at the core of GEA’s continuous extraction technology. Integrated safeguards ensure stable process control, while automated monitoring reduces the risk of operational errors. The self-cleaning system minimizes contamination risks and maintenance downtime, ensuring a hygienic and efficient production environment.
Our advanced plug-flow optimization ensures high extraction yields while significantly reducing raw material and water consumption. The adjustable slope of the extractor allows you to fine-tune the filling of the extraction, further enhancing efficiency. With a higher solids concentration output, the system minimizes post-extraction water removal requirements - delivering superior performance with lower resource input.
GEA’s state-of-the-art test center offers a 27-liter pilot plant for in-depth process validation. This facility allows you to optimize your extraction process before scaling up to full production, ensuring a tailored and efficient solution.
Our advanced facility can measure extraction yield, and can also interrogate downstream processes. This includes identifying optimal drying conditions, and simulating the full evaporation and freeze drying processes as part of a complete line evaluation. From roasted beans to final product, nothing is left to guesswork.
Dedicated GEA experts operate in-house to ensure every stage of the process is optimized, and once test results are fully validated are able to provide written performance guarantees for added peace of mind.
Our test center services include:
At GEA we stand by our technology with comprehensive in-house service and support. From process optimization and on-site maintenance to remote monitoring and troubleshooting, our expert teams ensure continuous performance and reliability. With tailored service agreements and global technical assistance, customers can rely on GEA for long-term efficiency and innovation in extraction technology.
GEAの専門知識と技術の包括的なポートフォリオは、全世界で毎日のようにコーヒー加工のあらゆる段階を最適化し、お客様がより優れた製品を受け取ることができるようにしています。GEAは、様々なメリットや利点を持つ2つの汎用性の高いコーヒー抽出技術を提供し、お客様の用途に最適なソリューションを選択するお手伝いをします。
GEA は、焙煎粉末(R&G)コーヒーをコーヒー抽出液に添加できる湿式粉砕技術を開発しました。このプロセスは、コーヒーのフレーバーとアロマを湿式粉砕よりもはるかに効果的に維持できるので、乾燥処理能力が強化されます。この技術は MicroWet といいます。
GEAは、コーヒーの加工中に失われがちな重要な香りの成分を捕まえて、保存するための革新的なシステムを開発しました。GEAの技術は、小さな設置面積で大きな効果を発揮し、新規および既存のGEAコーヒーラインに簡単に組み込むことができます。
GEA Aroma management comprises detailed aroma compound analytical services that combine years of GEA experience with the latest GC-MS technology.
GEA kytero 10により、バイオ医薬品、食品、ニューフード業界の研究者や開発者は、最新世代の強力な加速器を自由に使えるようになりました。