«Do you think this is an ordinary key?» surprised to know what this is, here You are wrong! In today’s world filled with high-tech gadgets, we lose sight of simple things You will be In our world, everything changes quickly and we don’t even have time to use all the kitchen tools because new ones are immediately invented. And today we will look at the evolution of the opening of canned food. Although today it is very easy to open them with a simple press of a button, this was once a difficult task. People opened canned food with a key. So, let’s find out how they came about and how these unique keys disappeared.
Canned food became popular in the late 19th century, and something had to be invented to make metal canned food easier to open. The keys were very different from modern electric openers. Even before these keys, the process of opening canned food was risky because people used sharp knives or hammers. This could lead to possible injury.
Even using the key was also a difficulty after modern electric openers. The key consisted of a sharp blade and a rotating handle. It was necessary to insert the blade into the lid, turn the handle and cut the metal. This, of course, was a safer method of opening canned food, but then everything became even easier.