The origin of jam can be traced back to ancient times, when people began to use the natural sugar of various fruits for cooking and preservation. The earliest jam may be made of natural ingredients such as honey, beeswax and citric acid. With the passage of time, the production technology and formula of jam have been continuously developed and improved, and it has become an indispensable part of people's daily diet.
Main components of jam and its making method;
The main ingredients of jam are fruit, sugar and other additives, among which fruit is the main source of taste and nutrition. Sugar is the main sweet ingredient in jam, and it is also the main desiccant in jam, which helps the water in jam evaporate and improve the consistency of jam.
Acidic substances (such as citric acid) can also be added to jam to enhance the taste and maintain the color of fruit. The basic steps of making jam include washing, peeling, removing the core and cutting the fruit into small pieces, adding sugar and other additives, and heating and stirring in a pot until the fruit becomes sticky and uniform.
Types and characteristics of jam:
There are many kinds and characteristics of jam. According to different fruits and production methods, the taste, color and texture of jam will be different. For example, strawberry jam is a common jam, which is made of strawberries and sugar. It tastes sweet and slightly sour. Blueberry sauce is made of blueberries, sugar and lemon juice, which has a strong blueberry flavor and deep purple color.
Orange peel sauce is a kind of jam with orange peel as the main component, which has a unique orange peel flavor and light yellow color. Cherry sauce is made of cherry, sugar and lemon juice, with sweet cherry flavor and deep red color. In addition, there are various kinds of jam, such as applesauce, plum sauce and pineapple sauce.
Nutritional value and health care effect of jam;
Jam is a kind of nutritious food, which contains a lot of beneficial substances such as vitamins, minerals and antioxidants. For example, strawberry jam is rich in vitamin C and cellulose, which helps to strengthen the immune system and digestive system; Blueberry sauce is rich in antioxidants and vitamin C, which helps to protect heart health and prevent cancer.
Orange peel sauce is rich in vitamin A and vitamin C, which helps to protect eyesight, strengthen immune system and prevent cancer. Cherry sauce is rich in vitamin C, potassium and antioxidants, which helps to lower blood pressure and prevent chronic diseases such as heart disease and diabetes.