The reason why garlic will turn green is that garlic contains some sulfides and amino acids, organic acids react to generate blue pigments, these reactions superimposed on the green color. However, the nature of the blue pigment is not stable, the temperature is relatively high when it is easy to decompose, light will also accelerate its decomposition, so a period of time after the garlic will fade.

General blue pigment is not very stable, in the higher temperature or light stronger environment is easy to decomposition, so the remaining yellow pigment, feel the color of the garlic will fade. If the soaked garlic is not green or green and then yellow, may be soaked environment temperature is too high, or placed in a place where it is easy to see the light. At the same time, the condition of moldy Laba garlic is also possible, so be careful to prevent.

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Put the peeled garlic cloves into an airtight container, then pour in the vinegar, seal the mouth and put it in a place where the temperature is low, and soon the white garlic will turn into an attractive green color.

Garlic contains a large number of sulfur-containing active substances, these sulfur-containing substances in the cold conditions by the enzyme catalyzed by alliin production of alliin and alliin, the combination of the two pigments can be made to show a bright green garlic. Similarly, the chlorophyll in green vegetables and vinegar after the demagnesium reaction to produce demagnesium chlorophyll, and further produce pyromagnesium chlorophyll, its color change to olive green, or even brown.

The production of Lahai garlic, first check whether the garlic cloves have mold, pickling jar material is best to choose glass and ceramic, with hot water for disinfection, to prevent the jar stained with oil, bacteria in the pickled garlic contaminated garlic cloves. And, the garlic cloves should be peeled and washed and dried, you can cut off the bottom of the garlic to facilitate the vinegar into the interior of the garlic, can make the garlic green a little faster.