What does deepfreezing mean?
Deepfreezing is the process of preserving food or other perishable material by freezing it rapidly at very low temperatures, conventionally −18 °C (0 °F) or colder. At such temperatures microbial growth and the enzymatic reactions that cause spoilage are effectively halted, allowing food to keep its texture, flavour, and nutritional value for months. The word functions chiefly as a noun naming this process, though it also serves as the -ing form of the verb 'deep-freeze', meaning to subject something to that treatment. In everyday British and American usage the term appears most often as 'deep-freezing' or 'deep freezing', particularly on packaging, in cookery guidance, and in discussions of food safety and storage. Beyond the kitchen, the same principle underpins cryopreservation, where cells, tissues, and vaccines are stored at far lower temperatures. The word carries a neutral, practical connotation and remains useful precisely because it names a technique so central to modern food supply chains.
The process or practice of preserving food or other material by freezing at very low temperatures.
"Commercial deepfreezing revolutionised the frozen-food industry in the mid-twentieth century."
Present participle of deep-freeze: to preserve something by freezing it at very low temperatures.
"They were deepfreezing the surplus harvest for winter."
Usually hyphenated ('deep-freezing') when used verbally.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of deepfreezing
The term combines the adjective 'deep' (from Old English dēop, from Proto-Germanic *deupaz) with 'freeze' (from Old English frēosan, from Proto-Germanic *freusaną), both native Germanic words. The compound arose in the twentieth century alongside the spread of mechanical home freezers and industrial cold-storage technology. It is related to other Germanic derivatives of the same root as 'freeze', including 'frost'.
Related word forms
How deepfreezing is actually used
More commonly spelled 'deep-freezing' or 'deep freezing'; the solid form is less frequent in edited prose. The term is neutral in register and common in food science, domestic cookery writing, and technical contexts.
Easily confused with deepfreezing
The same concept written as two words or hyphenated ('deep-freezing'); 'deepfreezing' as one word is the less standard spelling.