canning canning means the preservation of food in permanent hermetically sealed containers of metal glass thermostable plastic or a multilayered flexible pouch through agency of heat heating is the principle ...
Filetype Power Point PPTX | Posted on 27 Aug 2022 | 3 years ago
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...Canning means the preservation of food in permanent hermetically sealed containers metal glass thermostable plastic or a multilayered flexible pouch through agency heat heating is principle factor to destroy microorganisms and sealing prevent re infection for canned foods container plays vital role it must be capable being entry impermeable liquids gases including water vapour maintain state biological stability i e commercial sterility that was induced by thermal process alone combination with other chemical physical processes physically protect contents against damage during transportation storage distribution can materials wide varieties are used now manufacture cans meat poultry yet remain most frequent package steel tinplate tin free nickel plated coated very thin film amount only about s weight should not contain more than lead rusting b aluminum c d closures although variety ones preferable as has high conductivity cannot easily broken opaque so any possible bad effects light on...