Make Food Coloring Blue
The method of making blue food color
To make blue food color, there are various methods. First, you can harvest the juice of plants. Find bluegrass, the leaves of this grass are dark and blue, and the color and quality are very rich. The young leaves of bluegrass are plucked, washed with water, placed in a stone bowl, and pounded repeatedly with a pestle and mortar until the leaves of grass become mud. Then with a fine cloth, the juice slowly seeps out. This juice is the light blue base liquid. If you feel light in color, you can put the base liquid on a low fire and cook it slowly, so that the water will gradually steam, and the color will be thicker.
Second, use natural ores. Select lime, this stone is blue in color, and pure in quality is better. Smash the lime first, until it is in the state of powder, the finer the better. Then sieve it with a silk sieve to remove its coarse grains. Then put the fine powder in a milk bowl, add an appropriate amount of water, and grind it for a long time, so that the powder and water are fully blended, and the resulting liquid is clear and blue, and can be used for food color.
When using the method of ore, you need to choose the material carefully to avoid impurities. And whether you use grass juice or stone liquid, it should be carefully filtered and refined to ensure purity and non-toxicity, and then it can be used for food dyeing to form a pleasing blue delicacy.
