Technology
Canning preserves food by creating an airtight vacuum seal
HERE’S THE INTERESTING PART
Stuffing food in a metal tin does not stop it from rotting unless you manipulate the atmosphere. During canning, the open cans are blasted with extreme heat, expanding the air inside. Once the lid is permanently crimped on and the can cools, the remaining air violently shrinks, pulling a devastating vacuum seal that bacteria simply cannot survive.
One discovery leads to another.
Keep exploring facts in this topic.
Technology →
