Hundreds of years before the invention of the modern refrigerator, humans learned to preserve food by thumbing their noses at the laws of nature! 🥶
Hundreds of years ago, when hunters caught salmon in the bitter cold of Siberia, Russia, their biggest challenge was keeping the fish from spoiling. There was no electricity or modern refrigerators back then!
They then used the ice layer and the intense cold air to create the world's first 'natural deep freezer'. How did this ancient technology work? Watch the entire video to find out!
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