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Preserved food in Mason jars. Home canning or bottling, also known colloquially as putting up or processing, is the process of preserving foods, in particular, fruits, vegetables, and meats, by packing them into glass jars and then heating the jars to create a vacuum seal and kill the organisms that would create spoilage.
The Fowler's Vacola system uses glass jars, single use rubber ring seals and pressed metal lids, much like American Mason jars first patented in 1858, except that the jars and lids are not threaded. During the canning process, while still hot (and presumably sterile ), the lids are secured by metal tension clips which are removed once cooled ...
Canning involves cooking food, sealing it in sterilized cans or jars, and boiling the containers to kill or weaken any remaining bacteria as a form of sterilization. It was invented by the French confectioner Nicolas Appert. [4] By 1806, this process was used by the French Navy to preserve meat, fruit, vegetables, and even milk.
Pressure cooking and canning is analogous to autoclaving, and when performed correctly renders food sterile. [18] [failed verification] To sterilize waste materials that are chiefly composed of liquid, a purpose-built effluent decontamination system can be utilized. These devices can function using a variety of sterilants, although using heat ...
The food is first prepared, either raw or cooked, and then sealed into the retort pouch. The pouch is then heated to 240-250 °F (116-121 °C) for several minutes under high pressure inside a retort or autoclave machine. The food inside is cooked in a similar way to pressure cooking.
Pickled Red Onions are an easy way to addd a tangy flavour to any meal. Made in minutes and can be stored for days in the fridge, quick pickled red onions are great on burgers, hot dogs ...
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Used to sterilize instruments in absence of an autoclave Dressing drums: storage of gowns, cotton, linen, etc. The microscope: used for visualising minute structures including microbes: Various stains: used to stain microscopic slides to get contrast Hot air oven