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Hersteller von Laborglasgeräten und B2B-Vollversorger für Laborbedarf, Laborgeräte, Sicherheit und Sonderanfertigungen für Forschung und Industrie. Rettberg – Precision Laboratory Glassware. Reliable Laboratory Technology. Manufacturer of laboratory glassware and partner for dependable laboratory equipment in research, industry, and technical applications. About Us Gebr. Rettberg GmbH is an owner-managed company with many years of experience in the laboratory sector. We stand for quality, reliability, and practical solutions. As a manufacturer of high-quality laboratory storage equipment and a trusted partner for laboratory technology, we support customers from research, industry, and technical fields with tailored products and personal consultation. Our focus is on sustainably optimizing laboratory workflows and delivering real added value – from planning to implementation. Our Goal: To make laboratory processes more efficient, safer, and more cost-effective. Learn more Our core competencies Manufacture of laboratory glassware Laboratory Technology We manufacture laboratory glassware for professional use – from standard products to custom-designed special applications. Our glassware impresses with precise workmanship, exceptional quality, and long service life. We offer high-quality laboratory technology for research, industry, and technical applications. Our range includes proven equipment from well-known manufacturers as well as reliable solutions for everyday professional laboratory work. Laboratory Supplies Custom-made products in glass apparatus construction We offer a comprehensive range of laboratory consumables, safety equipment, and protective gear for professional use. Our solutions ensure safe, standards-compliant, and efficient work in laboratories and industry. We produce tailor-made laboratory glassware and apparatus exactly according to your technical specifications – from planning and precise manufacturing to on-time delivery. Our Onlineshops LabStore Fast and convenient online ordering · selected products! Lab Catalog Complete product range with individualized pricing! Our service We handle the calibration, maintenance, and functional testing of pipettes and dispensers. This ensures precise measurement results and reliable performance in the laboratory. Pipette service Discover more We professionally repair and refurbish laboratory glassware and equipment. Through expert repair, we maintain functionality and extend the lifespan of your devices. Repair of laboratory glassware Discover more We manufacture custom-made stainless steel tanks and laboratory furniture according to your technical specifications. Our solutions combine robust construction with the highest precision for laboratory and production applications. Stainless steel frame construction Discover more We regenerate ion exchangers and mixed bed systems professionally and efficiently. This extends the service life of your products and ensures cost-effective laboratory operations. Regeneration of ion exchangers Discover more Contact Gebr. Rettberg GmbH | Göttingen Rudolf-Wissell-Str. 17 37079 Göttingen +49 (0)551 / 50 50 3-12 info@rettberg.biz Contact Form Topic Select topic Company First name Last name Address Email Message I have read and acknowledged the privacy policy Senden Thank you for your message! Careers at Rettberg An innovative work environment, technical challenges, and long-term prospects – at Rettberg, we combine tradition with the future. Strengthen our team as an expert in laboratory and industrial technology. Job Openings

Laboratory glassware and laboratory equipment from Gebr. Rettberg. Distillation technology, ground-glass joints, volumetric glassware and more – over 150,000 products for laboratories and research. Vacuubrand Vacuum Technology & Laboratory Pumps Authorized Vacuubrand Dealer – Expertise Across Generations Gebr. Rettberg GmbH is your authorized partner for vacuum pumps, vacuum systems and vacuum controllers by VACUUBRAND® . With decades of experience, we supply companies, research institutions and universities with certified original products. LabStore – Directly Available. Ready to Order. VACUUBRAND pumps and accessories for laboratory, industry and technical applications – fast, reliable and available online. VACUUBRAND in the LabStore Fast and convenient online ordering · selected products! Our Vacuubrand Products Vacuum Systems Complete pump stands with integrated control for demanding processes Diaphragm Pumps Oil-free, chemical-resistant – ideal for lab and analytics Vacuum Controllers Precise pressure control for distillation, filtration and evaporation Accessories & Spare Parts Original diaphragms, cold traps, filters and fittings by VACUUBRAND® Vacuubrand – Product Inquiry Topic Select topic Company First name Last name Address Email Message I have read and acknowledged the privacy policy Senden Thank you for your message!

Laboratory glassware and laboratory equipment from Gebr. Rettberg. Distillation technology, ground-glass joints, volumetric glassware and more – over 150,000 products for laboratories and research. Martin Christ Freeze Drying & Vacuum Concentration Authorized Christ Dealer – Precision Freeze Drying for Lab and Pharma Gebr. Rettberg GmbH is your authorized partner for freeze-drying systems and vacuum concentrators by Martin Christ. Over 75 years of innovation – we supply certified original systems to research institutions, industry and universities. LabStore – Directly Available. Ready to Order. Christ freeze dryers, vacuum concentrators and original accessories – available online, ready to order. CHRIST in the LabStore Fast and convenient online ordering · selected products! Our Christ Products Laboratory Freeze Dryers Capacities from 2.5 kg to 24 kg per drying run Pilot Freeze Dryers For process optimization and small-scale production Vacuum Concentrators Precise pressure control for distillation, filtration and evaporation Accessories & Spare Parts Vials, trays, thermal blocks and original components CHRIST– Product Inquiry Topic Select topic Company First name Last name Address Email Message I have read and acknowledged the privacy policy Senden Thank you for your message!

Laboratory glassware and laboratory equipment from Gebr. Rettberg. Distillation technology, ground-glass joints, volumetric glassware and more – over 150,000 products for laboratories and research. Memmert Climate Chambers, Drying Ovens & Incubators Authorized Memmert Dealer – Precise Temperature Control for Lab and Industry Gebr. Rettberg GmbH is your authorized partner for climate chambers, drying ovens and incubators by Memmert. Over 90 years of experience, more than 2.25 million devices in use worldwide – we supply certified original equipment to research institutions, industry and universities. LabStore – Directly Available. Ready to Order. Memmert climate chambers, drying ovens and original accessories – available online, ready to order. Memmert in the LabStore Fast and convenient online ordering · selected products! Our Memmert Products Drying Ovens Precise drying and heat treatment for lab and industry Climate Chambers & Incubators Constant temperature and humidity control for demanding processes Cooling Incubators Temperature control in the cooling range for biological and chemical samples Accessories & Spare Parts Original shelves, baskets, sensors and spare parts by Memmert Memmert– Product Inquiry Topic Select topic Company First name Last name Address Email Message I have read and acknowledged the privacy policy Senden Thank you for your message!

Laboratory glassware and laboratory equipment from Gebr. Rettberg. Distillation technology, ground-glass joints, volumetric glassware and more – over 150,000 products for laboratories and research. BÜCHI Rotary Evaporators, Spray Drying & Lab Solutions Authorized BÜCHI Dealer – High-Quality Lab Equipment for Pharma, Chemistry and Research Gebr. Rettberg GmbH is your authorized partner for laboratory equipment by BÜCHI Labortechnik. As market leader in rotary evaporation and spray drying, BÜCHI delivers precise, modular solutions – we supply research institutions, industry and universities with certified original equipment. LabStore – Directly Available. Ready to Order. BÜCHI rotary evaporators, spray dryers and original accessories – available online, can be ordered directly. BÜCHI in the LabStore Fast and convenient online ordering · selected products! Our BÜCHI Products Rotary Evaporators Market leader in rotary evaporation – modular, precise, scalable Spray Dryers Dry particles for pharma, chemistry and food research Chromatography Flash and preparative HPLC systems for efficient separations Accessories & Spare Parts Original flasks, seals, condensers and spare parts by BÜCHI BÜCHI– Product Inquiry Topic Select topic Company First name Last name Address Email Message I have read and acknowledged the privacy policy Senden Thank you for your message!

Laboratory glassware and laboratory equipment from Gebr. Rettberg. Distillation technology, ground-glass joints, volumetric glassware and more – over 150,000 products for laboratories and research. Laboratory Glassware & Lab Supplies High-quality laboratory equipment – expertise built over generations Gebr. Rettberg GmbH is your reliable partner for laboratory glassware, lab supplies, and laboratory equipment. With decades of experience, we supply companies, research institutions, and universities with high-quality products. LabStore – Directly Available. Ready to Order. Standard products for laboratories, industry and technical operations – fast, reliable and available online. LabStore Fast and convenient online ordering · selected products! OUR LABORATORY GLASSWARE Distillation and extraction technology Distillation apparatus – Complete systems for laboratory and research applications Components for distillation apparatus – cooling coils, distillation bridges, feed adapters and intermediate pieces Extraction apparatus – Soxhlet apparatus and Kutscher-Steudel extractors Adapters and transition joints – standard ground glass adapters between different ground glass sizes Reaction vessels and accessories – reaction flasks with standard ground joint and magnetic stir bars Glass vessels and standard ground glass joints Standard ground components – cores, sleeves and accessories – Flexible assembly options according to DIN standards Glass filter devices – glass filter funnels and filter crucibles in porosities P1 to P5 Flasks with standard ground joint and thread – round-bottom flasks, flat-bottom flasks, three-neck flasks (NS 14/23 to NS 45/40) Schlenk lines and Schlenk technology – For gentle concentration and sample preparation Sublimation apparatus – Thermal separation of temperature-sensitive substances Dosing and filling funnels – dropping funnels, separating funnels, powder funnels Cold traps and Woulff bottles – For vacuum applications and as safety bottles Gas washing bottles – Drechsel bottles and absorption bottles Gas distribution systems – Controlled gas supply with check valves Desiccator systems – drying and storage of moisture-sensitive substances Chromatography – Columns , fraction collectors and separation columns Eudiometer units – precision measuring instruments for gas volume determination Weighing bottles, impinger bottles and hybridization bottles – special glassware for scientific applications Centrifuge tubes – pointed tubes and centrifuge tubes according to DIN Accessories for rotary evaporators – evaporating flasks, receiving flasks, cooling coils Full-Range Shop – Extended Portfolio. Centralized Access. Our Full-Range Shop expands the LabStore assortment with thousands of additional products for industry, laboratories and technical operations. Manufacturer-independent sourcing, consolidated supplier structures and efficient purchasing processes – all managed centrally by Rettberg. Full Product Range | Lab Catalog Complete product range with individualized pricing! LABORATORY SUPPLIES & LABORATORY EQUIPMENT Basic equipment Containers – storage containers, wide-mouth bottles, dropper bottles made of glass and plastic General laboratory supplies – beakers, graduated cylinders, Erlenmeyer flasks, test tubes Laboratory glassware – precision instruments for volumetry, titration and analysis Safety and technology Volumetrics – Pipettes, burettes, volumetric pipettes, volumetric flasks – highest precision instruments Pump technology – vacuum pumps, diaphragm pumps, peristaltic pumps Sample preparation – mortar, pestle, sieves, homogenizers Temperature control equipment – heating plates, heating baths, thermostats, drying cabinets Stirring and shaking technology – magnetic stirrers, overhead shakers, orbital shakers Separation technology – centrifuges, filters, filtration equipment Biotechnology – fermenters, bioreactors, incubators Measurement technology – pH meters, conductivity meters, thermometers Optical examination – microscopes, spectrometers, refractometers Laboratory equipment – laboratory trolleys, racks, drying stands ✓ Comprehensive product range Over 150,000 products for laboratory and research

Explore career opportunities at Rettberg. Join a specialized company for laboratory glassware and laboratory equipment with a collaborative working environment. Careers at Rettberg Tradition meets innovation – work with us on precise solutions for laboratories and industry. For decades, Gebr. Rettberg GmbH has stood for quality, reliability, and technical expertise in the field of laboratory and specialty glass. As a medium-sized family business, we combine technical know-how with an appreciative corporate culture. What sets us apart Short paths, clear communication Flat hierarchies and quick decisions ensure efficient work. Family-oriented culture People matter to us – we work in partnership and at eye level. Security and perspective Long-term collaboration, fair compensation, and individual development. Flexibility Modern working time models and home office options where appropriate. Job Posting: Scientific Glassblower (f/m/d) Your Responsibilities Manufacturing and processing of glass apparatus according to technical drawings or customer requirements Repair and modification of laboratory glass equipment Working with borosilicate and quartz glass Ensuring high quality and precision in production Collaborating with our sales team and customers on custom projects Your Profile Completed training as a scientific glassblower or comparable qualification Experience working with technical glass Precise, careful, and independent working style Strong manual skills and technical understanding Team-oriented and reliable What We Offer A secure position in a growing company Varied and challenging tasks Modern working environment and high-quality equipment Flat hierarchies and quick decision-making Opportunities for professional growth Application We look forward to receiving your application via email: info@rettberg.biz

Laboratory procurement and system supply for industry and research. Independent sourcing, project coordination and full-range laboratory equipment supply by Gebr. Rettberg. Procurement & Full-Range Supply System procurement, project coordination and full-range supply from a single source. Efficient purchasing structures, project sourcing and access to our extended product portfolio. System Procurement for Industry & Laboratories Full product range Project-based sourcing Framework agreements Manufacturer-independent procurement Centralized support Full-Range Shop Our Full-Range Shop expands the LabStore portfolio with thousands of additional products for industry, laboratories and technical operations. Cross-manufacturer product selection Consolidation of your supplier structure Structured purchasing processes Centralized support through Gebr. Rettberg GmbH Full Product Range | Lab Catalog Complete product range with individualized pricing! Project Procurement & Framework Agreements For new constructions, expansions or recurring requirements, we manage the complete material coordination – from initial analysis to long-term structuring. Project-based quotations Framework agreements Price fixation agreements Personal account management Project Inquiry Topic Select topic Company First name Last name Address Email Message I have read and acknowledged the privacy policy Senden Thank you for your message!

Contact Rettberg for questions about laboratory glassware, laboratory equipment and services. Our team will be happy to assist you by phone or email. connect now Contact Do you have questions about our products, need individual advice, or a specific quote? Our team is here to help with expertise and many years of experience. Contact us – we look forward to hearing from you. Contact Gebr. Rettberg GmbH | Göttingen Rudolf-Wissell-Str. 17 37079 Göttingen +49 (0)551 / 50 50 3-12 info@rettberg.biz Contact Form Topic Select topic Company First name Last name Address Email Message I have read and acknowledged the privacy policy Senden Thank you for your message! Contact person Our experienced team is here to answer your questions about products, orders, and technical solutions. Contact us directly – we're happy to help. Jan Rettberg Managing Director T : +49 551/50503-0 jr@rettberg.biz Claudia Möbs Sales & Service T : +49 551/50503-16 cm@rettberg.biz Lea Scheufler Apprentice / Trainee T : +49 551/50503-0 ls@rettberg.biz Carsten Lichtblau Sales Management & Field Service M : +49 151/59076534 cl@rettberg.biz Matthias Görres Procurement & Service T : +49 551/50503-15 mg@rettberg.biz Sabrina Körner Purchasing & Administration T : +49 551/50503-10 sk@rettberg.biz Stefan Stankiewicz Sales & Export T : +49 551/50503-12 ss@rettberg.biz Susanne Rettberg Accounting & Finance T : +49 551/50503-22 buchhaltung@rettberg.biz Susanne Rösler Dealer Support T : +49 551/50503-13 sro@rettberg.biz

Laboratory glassware for wine analysis in wineries and wine laboratories. Precision glassware for alcohol determination, acidity analysis and SO₂ testing – quality by Gebr. Rettberg. Procurement & Full-Range Supply System procurement, project coordination and full-range supply from a single source. Efficient purchasing structures, project sourcing and access to our extended product portfolio. Laboratory Glassware for Wineries Precision glassware for wine analysis and quality control in viticulture. Our laboratory glassware supports wineries and wine laboratories in the analysis of must and wine – from alcohol determination and acidity analysis to the control of sulfur dioxide levels. Typical Analyses in Wine Laboratories Laboratory glassware supports precise analyses of must and wine in wineries and wine laboratories. Alcohol Determination To determine the alcohol content, distillation methods and precise measuring instruments are used. Laboratory glassware such as distillation apparatus, volumetric flasks, and condensers enable reliable analyses in wine laboratories. Acidity Analysis The determination of total acidity and volatile acidity is one of the most important analyses in viticulture. Burettes, pipettes, and Erlenmeyer flasks are regularly used in titration processes. Sulfur Dioxide Analysis Monitoring the sulfur dioxide content (SO₂) is essential for the stability and quality of wine. Precise glassware ensures safe and reproducible laboratory analyses. Typical Laboratory Glassware for Wineries Distillation apparatus Volumetric flasks Graduated cylinders Burettes Pipettes Erlenmeyer flasks Test tubes Condensers and distillation accessories Your Partner for Laboratory Glassware in Wine Laboratories As a manufacturer and specialist supplier of laboratory glassware, Gebr. Rettberg GmbH supports wineries and wine laboratories in selecting suitable glassware for analytical applications. Thanks to many years of experience in the laboratory sector, we offer reliable products, short delivery times, and expert advice. Contact us

Discover the trade fairs and industry events where Rettberg is represented. Find upcoming exhibition dates, conferences and opportunities to meet our laboratory glass experts. Trade Shows & Events Personal contact is important to us. At the most important industry trade shows, we present our product portfolio, provide individual consultation, and show you the latest developments in laboratory glass and specialty glass technology. Feel free to arrange an appointment with us in advance. Trade Shows 2026 🔬 LAB SUPPLY Germany's leading trade fair for laboratory technology 📍 Berlin 📅 Tuesday, June 16, 2026 📍 Dresden 📅 Tuesday, September 8, 2026

Professional service for laboratory equipment and pipettes – maintenance, repair and calibration. Reliable laboratory service by Gebr. Rettberg. Service – Precision. Quality. Reliability. Fully demineralized water, calibrated pipettes, and professionally repaired equipment ensure your process quality. We offer a complete service from collection to return delivery—transparent and tailored to your requirements. Available exclusively in Germany! Our service Pipette service We handle the calibration, maintenance, and functional testing of pipettes and dispensers. This ensures precise measurement results and reliable performance in the laboratory. Repair of laboratory glassware We professionally repair and refurbish laboratory glassware and equipment. Through expert repair, we maintain functionality and extend the lifespan of your devices. Stainless steel frame construction We manufacture custom-made stainless steel tanks and laboratory furniture according to your technical specifications. Our solutions combine robust construction with the highest precision for laboratory and production applications. Regeneration of ion exchangers We regenerate ion exchangers and mixed bed systems professionally and efficiently. This extends the service life of your products and ensures cost-effective laboratory operations. Request a quote Please briefly describe your request, and we will get back to you immediately with an offer. Gebr. Rettberg GmbH | Göttingen Rudolf-Wissell-Str. 17 37079 Göttingen +49 (0)551 / 50 50 3-12 info@rettberg.biz Services & Costs Pipetten-Service Regenerations-Service Service Request Service Select service Company First name Last name Address Email Inquiry I have read and acknowledged the privacy policy Send Thank you for your message! Downloads & Datenblätter Water Monitor LWW 20 – Operating Instructions Download Installation, commissioning and functional description for monitoring cooling water flow. Pressure / Check Valve – Commissioning Download Instructions regarding transport lock, barrier liquid filling and correct adjustment. High Vacuum Valves with Glass Spindle – Technical Notice Download Information on sealing position and proper handling of the PTFE sealing system. High Vacuum PTFE Grease TF 100 HV – Data Sheet Download Product properties, application areas and safety-related information. Ion Exchanger – Regeneration Service Download Service overview, regeneration process and handling conditions. Pipette Service – Service & Calibration Order Form Download Order form for maintenance, repair and ISO 17025 calibration including service and data options. PTFE Valves – Adjustment Instructions Download Guide for readjusting the packing gland using the integrated Allen screw. Silica Gel Orange – Product Data Sheet Download Technical properties, adsorption values and colour indicator characteristics. Laboratory Glass Coating – Technical Information Download Properties, temperature resistance and chemical durability of the protective coating. Pipette Service & Calibration Download Repair, maintenance and calibration services including optional DAkkS certification. Repair Form – Health and Safety Clearance Download Form for requesting repairs including a health and safety declaration. Required for safe handling and acceptance of returned equipment.