Lab incubators and laboratory ovens are often grouped together as "heated cabinets," and that shorthand causes real problems at procurement time. The two pieces of laboratory equipment are built for very different jobs, and choosing the wrong one can mean wasted samples, failed experiments, or capital equipment that never earns its keep.
This guide breaks down how a lab incubator differs from a laboratory oven, where each belongs in the workflow, and what to look for when you are specifying equipment for your facility.
A lab incubator is designed to maintain a narrow, stable temperature band, usually somewhere between 5°C and 60°C depending on the model. That range mirrors the physiological conditions most biological cultures need to survive and multiply. Microbiologists use incubators to culture bacteria and fungi, typically at 37°C, in order to study growth patterns and responses to antibiotics.
Food technologists run shelf-life trials at controlled temperatures. Horticultural researchers germinate seeds. Cell culture teams rely on CO₂ incubators, which manage gas levels (usually around 5% CO₂) and high relative humidity (above 90%) to maintain the correct pH in culture media and keep cells hydrated during tissue engineering and drug discovery work.
Because biological material is alive, accuracy and consistency matter more than raw power. A good lab incubator delivers tight spatial uniformity through forced air circulation, fast recovery after door openings, and minimal drift over long incubation periods.
Refrigerated incubators extend the useful range below ambient for environmental studies and pharmaceutical stability testing, where teams evaluate how drug compounds degrade over time under specific conditions. Shaker incubators add gentle agitation to mix samples and improve oxygen transfer during aerobic cell growth.
Modern units also include features that reduce risk. HEPA filtration, UV sterilisation, and antimicrobial coatings help prevent contamination. Independent alarms flag temperature fluctuations and door incidents. Data logging supports audit trails for regulated work.
Compact micro incubators suit benches where space is limited, and full-sized cabinets serve higher-throughput laboratory needs. Incubators also show up outside the research bench: medical centres and hospitals use them to keep items such as warming blankets and other medical supplies in a clean, warm environment ready for use.
Thermoline's incubator range reflects this breadth, with benchtop, upright Premium, large-capacity (up to 1100 L), Premium Refrigerated, and CO₂ configurations available, all designed and manufactured in Australia. The benchtop variety offers both fan-forced and natural convection in a single cabinet, a feature unique to Thermoline that is ideal for labs running a mix of sensitive and robust work.
A laboratory oven is a different beast. Its job is to push heat, often a lot of it, into a sample to drive off moisture, harden a coating, sterilise glassware, or test how a material behaves under thermal stress. Operating temperatures typically start at 70°C and climb to 250°C, with high-temperature models reaching 300°C. Laboratory ovens are used for a variety of functions including drying, baking, curing, heat treatment, and softening samples across the scientific, industrial, and testing industries.
Different types of laboratory ovens suit different jobs. General purpose ovens cover routine drying and sterilisation. Drying ovens and dehydrating ovens remove moisture from soil, paper, timber, plaster, fabric, coal, and other minerals.
Flame proof ovens are built for solvent-laden work. Vacuum drying ovens are ideal for heat-sensitive or oxygen-sensitive samples. Well-designed ovens deliver reliable temperature control with pinpoint accuracy, which is essential when working with temperature-sensitive materials or when results must meet strict scientific standards.
Thermoline's oven range spans benchtop and freestanding models, natural convection units, glassware drying ovens (the TGD-80F, TGD-150F, and TGD-250F), and large-capacity cabinets up to 2400 L for high-volume sample runs. Every cabinet is built in Australia using high quality materials and components selected for durability, safety, and consistency across thousands of cycles.
The simplest way to frame the decision is by the variables that matter at the bench:
Start with the sample, not the spec sheet. Three quick questions usually settle the decision.
First, what is going inside? Anything biological and alive points straight at an incubator. Anything inert that needs drying, curing, or sterilising points at an oven.
Second, what temperature do you need to hold? If the answer sits below 60°C, you want an incubator. If it sits above 70°C, you want an oven. The gap between 60°C and 70°C is deliberate: almost no routine laboratory application lives there, which is part of why the two product ranges exist as distinct categories.
Third, what else are you trying to control? Humidity, CO₂, and gentle airflow are incubator territory. Fast moisture removal and high-temperature uniformity are oven territory.
If you can answer all three and still feel uncertain, talk to the experts. Thermoline's in-house engineering team has been specifying laboratory heating and incubation equipment for Australian labs since 1970, and can often recommend a standard unit or a custom build that fits a specific protocol better than an off-the-shelf import.
Heated cabinets are capital equipment. They sit in a lab for a decade or more and need to hold their performance specifications across thousands of cycles. That makes the supplier as important as the spec.
Thermoline is trusted by laboratories, hospitals, universities, and medical centres across the country, with in-house R&D, CNC laser cutting for custom work, and after-sales support, installation, and maintenance handled by the same team that built the unit. For labs running mission-critical protocols, that continuity is often worth more than the last five percent of data-sheet performance.
If you are weighing up options for your next incubator or laboratory oven, contact the team to quote custom cabinet sizes, heavier-duty components, or non-standard temperature set points to suit your laboratory needs.
Can a lab incubator double as an oven at the top of its range?
Even if an incubator is rated to 60°C or 80°C, sustained use at the top of that range stresses seals, electronics, and fans that were not specified for oven-style duty cycles, which will cause faster wear, drift, damage, and shorter service life.
Do laboratory ovens need calibration as often as incubators?
Calibration frequency is driven by the application and any accreditation standard the lab works under (for example NATA), rather than the equipment category. A high-temperature oven used for materials testing under a NATA scope will often need more frequent calibration than a general purpose drying oven, and the same logic applies to incubators used for clinical work.
What is the difference between a drying oven and a dehydrating oven?
A drying oven removes moisture at elevated temperatures (often 70°C to 150°C) as part of sample preparation or testing. A dehydrating oven runs at lower temperatures for longer periods to preserve the structure of food or biological material. The two can look similar externally but are specified for different outcomes.
Are benchtop models a real substitute for freestanding units?
For low-volume work, yes. Thermoline's benchtop incubators and drying ovens meet the same control standards as the larger cabinets, and are ideal for teaching labs, satellite benches, and small R&D groups. Once sample throughput grows, or a cabinet needs to run multiple jobs at once, a freestanding unit becomes the more economical choice.
Can one cabinet be used for both biological and materials work?
It is not recommended. Cross-contamination risk aside, the thermal and airflow profiles that suit each application are different enough that running both in a single cabinet usually degrades results. Separate incubators and ovens remain the standard answer in any accredited lab.