A retort pouch (laminated plastic-metal) is cooked at 240-250 degrees F under high pressure in an autoclave. it is not cooled under pressure.
no they will melt if it is hot enough
The simple answer is yes - Aluminium is in regular use for retort packs. You can find retorted packs of petfood (the small square foil-lidded trays) which are all aluminum and you'll also fins some aluminum cans of pate, fish etc all of which are retorted.. The tendency to use steel cans has been, I think, more to do with cost than suitability so cans would be equally good. Plastic materials are also used in retort applications, paticularly in pouches. Once again, you'll find petfood, soups and sauces in this style but they're also the pack of choice for military rations as they're flexible, compact and easy to reheat.
Assuming the can can be sealed. When the can is heated the air inside it expands. If the can is then sealed and allowed to cool the air inside contracts which causes the pressure inside to drop. Because the outside air pressure is now greater it crushes the can.
The process of making sardines typically involves cleaning and gutting the fish, then packing them in a can or jar with oil or sauce. The cans are then sealed and processed under high heat to kill bacteria and ensure shelf stability. Finally, the cans are cooled and labeled before being shipped for distribution.
a drinks can
2/7.85 = 254.777 millilitres
the pressure difference, depends upon the can, and what it contains, in food cans, the pressure is equil, however in soda pop cans the pressure is higher on the inside
Soda cans can explode at high altitudes due to the change in air pressure. As altitude increases, the air pressure decreases, causing the pressure inside the can to be greater than the pressure outside. This pressure difference can lead to the can bursting or exploding.
Propane is a gas a room temperature if it is not compressed. However, if it put in a canister under high enough pressure, it will be a liquid even at room temperature. Propane is a liquid below -44 degrees F or if its compressed. Grill bottles are only fillid 80% full with liquid. so you can use the propane gas on the top of the bottle.
Many aerosol cans use a propellant under pressure to disperse the contents of the can. These propellants are ofter flammable. If incinerated with some of this flammable propellant still in the can they would explode.
Melted aluminum cans can be cooled and reformed into new cans in a matter of minutes using industrial processes such as extrusion or molding. The entire recycling process, from melting to repackaging, typically takes only a few hours before the new cans are ready for use.
It is measured in pounds and ounces not cans. The info is on a sticker under the hood.