Vacc-Safe are the leading experts in medical refrigeration with a variety of minus 80 freezers. Also known as ultra-low temperature freezers, they are defined as freezers capable of maintaining highly accurate temperatures of -40°C to -86°C. Ultra-low temperature freezers are specifically designed refrigeration systems for the purpose of storing biological samples at extremely low and precise temperatures.
The Vacc-Safe DualGuard range of ultra-low temperature freezers is designed to provide reliable, long-term storage of critical pharmaceuticals, vaccines, and biological samples. Engineered for performance, efficiency and temperature stability, these freezers help maintain optimal storage conditions for sensitive materials used in healthcare, research and laboratory environments.
Core Features of the Vacc-Safe Minus 80 Freezer
- Temperature control – Accurately maintains temperatures ranging from -40 to -86°C
- VIP insulation – Maximises storage capacity by utilising vacuum-insulated panels, which allow for a slimmer profile
- Advanced cooling system – The smart inverter or high-efficiency cascade compressor paired with hydrocarbon refrigerants reduces energy consumption while ensuring superior temperature uniformity
- Inner door design – Double inner doors minimise cold air loss by letting you access specific sections without exposing the entire freezer cabinet
- Touch screen and LED display – User-friendly control panels for real-time monitoring of temperatures, alarm logs, and compressor activity
- Built-in USB data logger – Users can download and trace temperature data for compliance and auditing
- Comprehensive alarms – The freezer has comprehensive alarms that trigger visual and audible warnings for high and low temperatures, power failures, door ajar conditions and sensor errors
- Battery backup – Built-in battery to display temperature when power is off
- Lockable door – Additional security for pharmaceuticals and samples
- Increased product lifespan – Dissipates heat 20% more effectively to improve life expectancy of core parts
What is a Minus 80 Freezer?
A minus 80 freezer or ultra low temperature freezer is a refrigeration system that maintains a temperature range between -40° C to -86°C. These are one of the coldest freezers available and designed as standard freezers, which were not cold enough to preserve highly sensitive biological samples, vaccines and pharmaceuticals for the long term. Minus 80 freezers can be upright or chest freezers. They are often white or stainless steel with thick walls, inner doors, digital controls and alarms. The interior is often fitted with stainless steel racks and adjustable racks designed to hold cryoboxes, vials, and other research samples.
Chest and upright models each differ in their size, design and efficiency. An upright freezer has easy shelf access and is the most common type of minus 80 freezer. A chest freezer is better for energy efficiency and long term storage with variations like air-cooled and water-cooled. There are also portable and energy efficient models available.
Key features of a Minus 80 Freezer
Minus 80°C ultra low temperature freezers maintain stable, extreme cold to protect biological samples from degradation. Key features include vacuum insulation panels, pressure equalisation, multiple inner doors, and data logging.
The essential key features of minus 80 freezer are:
- Ultra low temperature capability – The main feature of a minus 80 freezer is the ability to maintain stable, ultra low temperatures typically between -40°C and -86°C. They reach temperatures that are significantly colder than standard freezers, usually at set points of -80°C or -86°C.
- Thick insulation – Minus 80 freezers have thick insulation, usually polyurethane foam or advanced vacuum insulation panels so they can achieve extreme cold. Some minus 80 freezers use a new technology called vacuum insulation panels that have a much higher R-value than foam in a thinner profile. The R-value is the measure of how resistant the insulation is to heat. A higher R-value signals a better insulation rating.
- Multiple inner doors – To help maintain ultra-cold temperatures, minus 80 freezers have multiple inner doors, often in compartments. These create thermal barriers and minimise cold air from escaping. The multiple inner doors protect sections of the freezer so that only a fraction of the freezer is exposed to room temperature which is crucial for sample integrity and temperature stabilisation.
- Advanced alarms and monitoring – Alarms and monitoring systems provide real-time temperature tracking with features like remote connectivity and multi-level alerts.
- Data logging – Minus 80 freezers have data loggers that continuously record internal temperatures and alert of any issues. Common types of data loggers include standalone loggers, cloud-based systems and those compatible with building management systems for critical sample protection.
- Access port – The access ports on minus 80 freezers are basically portholes that allow the external probes to enter the freezer without breaking the seal, ensuring stable temperatures are maintained.
Uses for Minus 80 Freezer
A minus 80 freezer is a specialised piece of equipment designed to store biological samples, some medications and vaccines for long term purposes. These freezers serve multiple purposes in areas from research, clinical and industrial environments. The many uses for a minus 80 freezer include:
- Healthcare and biomedical – An essential piece of equipment in healthcare and biomedical settings. A minus 80 freezer allows the long-term preservation of sensitive materials and medications. In hospitals, research institutes, biobanks and pharmaceutical environments, the minus 80 freezer plays an important role in supporting diagnostics, research and treatment. One of the main reasons for a minus 80 freezer in a healthcare setting is the storage of blood, plasma, biopsy tissues, serum and other clinical specimens that need to be stored at ultra-low temperatures. Storing these specimens at minus 80 degrees prevents enzymatic breakdown, preserves proteins and stabilises nucleic acids. A minus 80 freezer preserves viruses, cells, vaccines and DNA for the long term and prevents degradation by ensuring and maintaining extremely cold and stable temperatures typically -80°C to -86°C.
- Research and science – Minus 80 freezers are crucial in science for preserving sensitive biological materials like DNA and cell cultures by slowing down degradation and preventing molecular changes. They enable long-term storage for future experiments, drug development, and diagnostics in research labs, biobanks, and pharmaceuticals, ensuring sample viability for years.
- Food and agriculture – In food and agriculture, minus 80 freezers are used for ultra-fast freezing of high-value and delicate foods like sushi-grade fish, meats and exotic ingredients. A freezer that provides ultra-low temperatures prevents ice crystal formation for better texture and extends the shelf life of certain food products. Minus 80 freezers are essential for quality control, extended storage and allowing businesses to freeze seasonal products at peak quality and manage supply chains. Food is available year-round with the assurance of preserved flavour and texture.
- Veterinary services – Minus 80 freezers are used in veterinary clinics and research for the storage of biological samples like blood, tissue, parasites and DNA. They help to preserve these temperature-sensitive products for research, diagnostics, disease tracking and fertility preservation beyond standard refrigeration. This ultra-cold environment is needed to maintain critical cold chains and enable advances in veterinary medicine.
- Forensics – The safe storage of biological evidence in forensics requires a minus 80 freezer. Often long-term storage is needed for things like blood, tissue and DNA in this field. Biological sample storage may include saliva, hair and tissue samples from crime scenes. It allows for reexamination years later which can support cold cases or new technological analyses. The ultra-low temperatures significantly slow down the molecular degradation and microbial activity which extends the sample lifespan.
Minus 80 freezers or ultra-low temperature freezers are an essential piece of equipment in scientific, medical and industrial environments. They have the ability to maintain exceptionally low temperatures required for the long-term storage of biological samples, some medications and vaccines. This type of ultra low temperature storage ensures the integrity of irreplaceable materials that are used for clinical diagnostics, research outcomes and pharmaceuticals. Minus 80 freezers have specific features such as the cascade refrigeration system, dual system, and advanced alarms to ensure consistent and dependable preservation of temperature sensitive samples. Vacc-Safe are the experts in medical refrigeration with a variety of medical fridges and freezers to choose from.
