Refrigerated Incubator

What is the Refrigerated Incubator?

A refrigerated incubator holds cultures below room temperature as well as above it, allowing work with psychrophiles, yeasts and moulds, and temperature-sensitive samples. It combines heating and active cooling in one cabinet.

Overview

A refrigerated incubator adds a compressor-based or Peltier cooling system to a conventional heated cabinet so the working range typically extends from about 4 degrees Celsius to 60 degrees Celsius. A control system switches between heating and cooling to hold the setpoint, which makes the unit suitable for psychrophilic bacteria, food and environmental isolates, yeasts and moulds cultured at 20 to 25 degrees Celsius, and for sample holding during testing. Defrost cycles, insulation and door heaters prevent condensation and frost, and forced-air circulation keeps the chamber uniform. Some models include programmable temperature profiles, a timer and data logging. Because the cooling system adds heat load and complexity, ventilation around the compressor and periodic cleaning of the condenser are important maintenance points. Units range from small benchtop cabinets to large floor-standing chambers.

How does it work?

Culture equipment holds a defined temperature and, where needed, provides motion that improves gas exchange. A microbiological incubator controls temperature with a thermostat or microprocessor driving heating elements, a water jacket or an air jacket, and a fan circulates air so that all shelves stay within a narrow range. A shaking incubator adds a motor-driven platform that moves in a circular orbit, increasing the surface area available for oxygen transfer and keeping broth cultures suspended, with speed set in revolutions per minute and amplitude in millimetres. Refrigerated models add a compressor or Peltier element for below-ambient temperatures used for psychrophiles and fungi. Roller apparatus rotates bottles about their long axis so adherent cells are alternately exposed to medium and gas, and spinner flask systems use a magnetic stir bar or impeller to keep suspension cells mixed.

What are the key features?

• Heating and active cooling with a 4 to 60 °C range
• Microprocessor switching control to hold the setpoint
• Forced-air circulation for uniform chamber temperature
• Automatic defrost and condensation control
• Programmable profiles with timer and data logging

What are the technical specifications?

A typical refrigerated incubator configuration offers temperature range of 4–60 °C, temperature uniformity of ±0.5 °C, temperature stability of ±0.2 °C, cooling method of Compressor or Peltier element, chamber volume of 80–700 L and interior material of Stainless steel. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Refrigerated Incubator is used in psychrophilic and food microbiology, yeast and mould culture, water and environmental testing, sample holding during analysis and pharmaceutical stability incubation. Across the wider Culture Equipment class, laboratories also deploy it for microbial culture in clinical and food laboratories, antibiotic and susceptibility testing and cell culture and scale-up studies.

Which standards and certifications apply?

Relevant standards and methods include ISO 7218, ISO 11133, ISO 17025, USP <1116> and IEC 61010-1. Certification candidates for this model are CE, ISO 9001 manufacturing and IEC 61010-1 compliance; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Install the unit on a level surface with clearance for ventilation, and let the chamber stabilize before use. Verify temperature with an independent calibrated probe at several shelf positions, because displayed values can differ from actual conditions. Do not overload shelves, as this blocks airflow and creates cold or hot spots. Clean and disinfect the chamber on a schedule, and handle spills promptly to prevent contamination. For shakers, check that flasks are clamped and balanced, and reduce speed if liquid climbs the flask wall. Record calibration and maintenance, review alarm logs, and confirm that any CO2 or humidity sensors are calibrated and their gas supply is stable. Electrical safety follows IEC 61010-1.

How do I select the right Refrigerated Incubator?

Choose a refrigerated incubator when you must culture or hold samples below ambient temperature. In an RFQ specify the full temperature range, cooling method, chamber volume, defrost and condensation control, programming needs and the ventilation clearance required.

How does it compare with other Culture Equipment variants?

Choose the format from the culture method. Static plates and slants need a microbiological incubator with even temperature and adequate shelf space; broth cultures that demand oxygen need a shaking incubator, and the required speed, orbit diameter and shaking capacity should be matched to the flask sizes used. Add refrigeration when you work with psychrophiles, fungi or samples that must stay below room temperature. Roller culture apparatus suits scale-up of adherent cells in bottles, and spinner flask systems suit suspension or microcarrier culture. Confirm temperature range and uniformity, how fast the chamber recovers after door opening, chamber volume and shelf loading, alarm and data logging, and whether humidity or a CO2 option is needed. For regulated work, document calibration, mapping and verification success criteria.