Copper sulfate bubbles out of green zongzi leaves teach you three clever tips to turn green zongzi.
Mr. Liang of Zibo citizens, bought several zongzi from the supermarket in the first two days, but the dumplings have never been dared to eat, because the leaves of zongzi are too green!
Mr. Liang said that the leaves of zongzi are yellow and dry, but the leaves outside the dumplings are green and green. So Mr. Liang went online to inquire about it. There are revelations on the Internet that black hearted traders soak the zongzi leaves with copper sulfate, so that the dumplings sold are colorful and sell well.
reporter visited the green dumpling hidden market
the reporter visited the nearby market. Some stall told the reporter that the return of the leaves of the dumplings was true. Some people add copper sulphate to the rotten leaves for several years to sell. The reporter bought three copies of zongzi and three bulk dumplings in the market, and came to the laboratory of public welfare science and technology service center of Shandong Light Industries College to do a test.
copper sulphate can lead to copper poisoning
after testing, there are really green tea leaves containing copper sulfate in the market. Reporters learned that consumption of copper sulfate in the human liver gathered for a long time, it will cause copper poisoning. Copper sulfate is also prohibited in the state to add to food.
three trick to distinguish the return of green dumplings
in fact, the return of green dumplings is also very good resolution:
[color=#FF0000] one is green dumplings green, normal zongzi hair dark yellow hair;
two is green dumplings smell not fragrant, boiled after the smell of sulphur taste;
three is green dumplings after steamed water after boiling water It's green and normal should be light yellow. [/color]