Actually, I don't just mean beans, but any tins of groceries.
2007-01-24 02:34:39 · 4 answers · asked by Anonymous in Food & Drink ➔ Other - Food & Drink
I watched a doc on sky TV about canning things like coke etc. Basically the machine crimps the top of the can to the can itself. It showed the machine doing a double crimp / fold t6o make can air and fluid tight.
2007-01-24 02:46:46 · answer #1 · answered by DIAMOND_GEEZER_56 4 · 0⤊ 0⤋
Early cans were soldered, but now they just squeeze the seams together to make them airtight using a double seam. After filling and sealing the cans they are heated under pressure to sterilise the contents at typically 120 C.
2007-01-24 02:55:22 · answer #2 · answered by James G 1 · 0⤊ 0⤋
I think they use a kind of glue and heat. I have one of those "no sharp edges" can openers and when I pull the lid off, there is some glue stuff that comes up too. I think they use heat to kill bacteria. I know that heat is used in home canning to help seal the jars.
2007-01-24 02:45:04 · answer #3 · answered by mlemt76 3 · 0⤊ 0⤋
In a factory!
2007-01-24 02:37:31 · answer #4 · answered by agius1520 6 · 0⤊ 0⤋