A, frozen method Toon buds wash, boil with boiling water, control dry water divided into small parts, wrapped in several layers of plastic wrap, sealed placed in a plastic bag, and then into the refrigerator freezer, eat with the freezing, toon leaves are still tender green aroma, with this method can be fresh for a few months long. Toon boiled, can effectively remove the nitrite contained in it, but also conducive to the retention of vitamin C. Some data show that frozen frozen 2 months, boiled toon in vitamin C content is equivalent to 71% of the fresh products, and not hot only 35%, and boiled toon flavor is very strong, it is best to pack a few more layers for good Oh. Second, the salt method Toon washed, boiled in boiling water, dry water sprinkled with salt, mixed well, into the vessel, placed in the refrigerator or a cool place. Tsubaki leaves after blanching and then salted, can greatly reduce the nitrate content, the safest practice or blanched toon salted to a week later, to be reduced nitrite content before consumption. 0 for a more complex problem, organized to give solutions, more likely to be netizens understand oh.　A, refrigerated method Toon buds wash, boil with boiling water, control dry water divided into small portions, wrapped in several layers of plastic wrap, sealed placed in a plastic bag, and then into the refrigerator freezer, eat with the freezing, toon leaves are still tender and green aroma, with such a method can be preserved for a few months long. Toon boiled, can effectively remove the nitrite contained in it, but also conducive to the retention of vitamin C. Some data show that frozen frozen 2 months, boiled toon in vitamin C content is equivalent to 71% of the fresh products, and not hot only 35%, and boiled toon flavor is very strong, it is best to pack a few more layers for good Oh. Second, the salt method Toon washed, boiled in boiling water, dry water sprinkled with salt, mixed well, into the vessel, placed in the refrigerator or a cool place. Tsubaki leaves after blanching and then salted, can greatly reduce the nitrate content, the safest practice or blanched toon salted to a week later, to be reduced nitrite content before consumption. 0 for a more complex problem, organized to give solutions, more likely to be netizens understand oh.　A, refrigerated method Toon buds wash, boil with boiling water, control dry water divided into small portions, wrapped in several layers of plastic wrap, sealed placed in a plastic bag, and then into the refrigerator freezer, eat with the freezing, toon leaves are still tender and green aroma, with such a method can be preserved for a few months long. Toon boiled, can effectively remove the nitrite contained in it, but also conducive to the retention of vitamin C. Some data show that frozen frozen 2 months, boiled toon in vitamin C content is equivalent to 71% of the fresh products, and not hot only 35%, and boiled toon flavor is very strong, it is best to pack a few more layers for good Oh. Second, the salt method Toon washed, boiled in boiling water, dry water sprinkled with salt, mixed well, into the vessel, placed in the refrigerator or a cool place. Tsubaki leaves after blanching and then salted, can greatly reduce the nitrate content, the safest practice or blanched toon salted to a week later, to be reduced nitrite content before consumption. 0 For more complex issues, the solution is given in an organized manner, easier to be understood by the netizens oh.