Vegetable Blanching Machine Manufacturers
Connect with verified vegetable blanching machine manufacturers on Towobo. Source steam blanchers, hot water blanchers, and industrial blanching equipment for frozen vegetable lines, vegetable canning, and prepared vegetable processing.
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Browse Vegetable Blanching Machine Suppliers →Why blanching is used in vegetable processing
Blanching is a thermal pre-treatment that briefly exposes vegetables (and some fruits) to boiling water or steam at temperatures typically between 85°C and 100°C for times ranging from 30 seconds to several minutes, followed by rapid cooling. Blanching serves several critical functions: enzyme inactivation — it inactivates peroxidase, lipoxygenase, and other enzymes that cause quality deterioration (colour loss, off-flavour, texture changes) during frozen storage and canning; colour stabilisation — chlorophyll in green vegetables is partially stabilised, and the enzyme polyphenol oxidase (which causes browning) is inactivated; volume reduction — blanching wilts vegetables, reducing volume and helping product to settle into cans or bags more efficiently; microbiological reduction — reduces the surface microbial load before freezing or canning; air removal — drives out air from within tissues, which improves canning vacuum and reduces oxidation during frozen storage. Blanching is a standard step in frozen pea, frozen bean, frozen spinach, canned vegetable, and many other vegetable processing lines.