Most of us are sandwich fans. In fact, it’s thought that we spend a lot of money in our lifetime to buy sandwiches. Surprisingly, the average person will eat over 18,000 sandwiches throughout our life.There are thousands of different meals.But over 50% of us choose to each a sandwich every day at lunch. So, why do we love sandwiches so much?

With the development of social economy, people's dining tables are becoming more and more abundant, and Western-style fast food is one of them. Referred to western fast food, people can blurt out pizza, fried chicken nuggets, hamburgers and other delicacies. Among them, the hamburger is the most famous. Whether you are in busy work during relax, most people feel happy when eating and tasting hamburgers. In recent years, Chinese hamburger category market has grown stronger and stronger, and the competition of hamburger sub-categories have become fierce.

The name Hamburger originated from the northwestern German city of Hamburg. It means "from Hamburg", which can refer to the hamburger itself, or the patty made of ground beef or other ground beef in the bread. This kind of meat pie is now generally called hamburger pie in Chinese, and hamburger is used to refer to the round bun sandwich with hamburger steak. Today hamburgers can be found in nearly every parts of the world. Over time the concept has evolved, and meat patties are decorated with an endless variety of creative, tasty toppings. The meat patties themselves have been replaced with healthier options, including black bean, turkey and salmon burgers (though one might argue that these do not really qualify as burgers in the traditional sense).

Today we will take a look at tunnel oven. The tunnel oven interior is shaped like a tunnel, and the material is sent in and out of the furnace through a conveying mechanism. The tunnel oven is a tunnel-type mechanical device that completes material heating and baking through heat conduction, convection, and radiation.

Bread is one of the most important food that give us life and vitality. For many people around the world, bread is the primary essential food today. Have you tried to cut a loaf of bread with a regular knife? It’s annoying. You never get the thickness you want, and there’s an influx of crumbles. To