Ice cream is made by mixing raw materials into slurry, heating and sterilizing, emulsifying and freezing together. The key is to freeze the mixture with vigorous stirring. Under intense stirring, air can be evenly distributed in the mixture in the form of small bubbles, and a considerable amount of water becomes tiny ice residue, which makes ice cream taste good in the mouth.
In order to freeze the slurry under constant stirring, it is best to use a domestic ice cream machine to make ice cream. Household ice cream machine is a small machine, which is mainly composed of low-power motor and agitator. Work by the refrigerator. Pour the slurry into the mixing box, cover it, put it in the refrigerator for freezing, close the refrigerator door, turn on the power supply, and the motor drives the mixing blade to keep stirring. There is a spring device at the tail of the mixing shaft that plays an important role. When the raw slurry is frozen, the resistance increases, and the mixing blade rebounds with the spring device and does not stir, thus making the ice cream.
If you don't have a home ice cream machine, you can make ice cream with a hand-cranked ice cream machine. Pour the raw pulp into a covered metal bucket, and connect the upper end of the bucket to the manual stirring blade. The metal barrel is covered with a wooden barrel, and a mixture of salt and ice is put between the metal barrel and the wooden barrel, because salt can lower the freezing point of water, which can obtain an environment of MINUS 10 degrees Celsius in this way. The puree solidifies at this temperature, and the handle of the metal tube continuously rotates the gear, which drives the stirring blade to continuously stir, so that the ice cream with delicate taste is successfully made under the freezing condition.
It is best to take out the prepared ice cream with an ice cream spoon. The ice cream spoon consists of stainless steel spring and grip ball, which is used to scoop ice cream in the ice cream bucket and then turn it to the top. The handle of the spoon is pinched by hand to push the shell wall with a spring steel wire shell to rotate, so the ice cream becomes a spherical ball and falls into the plate.
Self-made ice cream In the absence of an ice cream machine, the simplest method is to pour the prepared mixed puree into a container and put it in the refrigerator for freezing. When the periphery of the container is frozen, stir it evenly with chopsticks to make it into a paste with even hardness, and then put it in the freezer to continue freezing. Stir for three times before hardening. Until it freezes into semi-solid, take it out and stir it again, then put it in the refrigerator, and it will be done in half an hour.