Difference 1: Different sources.

Sandwich Source: Sandwich was originally an unknown town in the southeast of England. There was an Earl of Sandwich named John Montagu in the town. He was a card lover. He indulged in card games all day and had forgotten all about eating and sleeping. It was difficult for the servant to wait on his diet, so he put some dishes, eggs and sausages between two pieces of bread and let him eat while playing cards.

Unexpectedly, Montagu was overjoyed when he saw this food, and casually called it "sandwich". When he was hungry, he shouted, "Bring sandwich!" Other gamblers followed suit and began to eat sandwich when playing cards. Soon, sandwich spread all over the British Isles, to the European continent, and later to the United States.

Hamburg Source: In ancient times, the Tatars had the habit of eating beef raw. As the Tatars moved westward, they were first introduced to the Balkans and then to Germany, and gradually changed from raw food to cooked food. People in Hamburg, Germany, improved it by kneading chopped beef paste in flour, spreading it into cakes, frying it and eating it, so it was called "hamburger patty" by its place name.

Difference 2: Different practices.

Sandwich is a typical western food, which is made of two pieces of bread with a few pieces of meat, cheese and various seasonings.

The earliest hamburger was mainly composed of two buns with a beef patties. In modern hamburgers, besides the traditional beef patties, butter, mustard, ketchup, salad dressing, etc. were coated in the second layer of the buns, and then tomato slices, onions, vegetables, pickles and other foods were sandwiched, so that the main and non-staple foods could be eaten at the same time.

Extended data:

Hamburg's mistakes and rumors:

1, hamburgers are not fried food.

Many people mistakenly think that hamburgers are fried food. The meat used in hamburgers doesn't have to be fried. Hamburgers can be made by boiling, baking, barbecue and other methods. Eating hamburgers is not harmful to health. Hamburgers are healthy food. Hamburg is convenient to eat, delicious in flavor and comprehensive in nutrition, and now it has become one of the convenient staple foods that sell well in the world.

2. Hamburgers don't cause high blood pressure.

The cause of hypertension is that islet β cells can't secrete insulin normally. Hamburgers will not damage islet β cells, nor will they reduce insulin in human body. As long as you don't overeat and eat a high-salt diet for a long time, there will be no hypertension.

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