wow, this is crazy stuff. next time you are buying take outs in Taiwan, remember to have your own utensils (chop sticks, forks, spoons) and your own container to carry soup. The plastic bag is probably okay to carry cold liquids but do not use them for hot stuff!!
English translation by Frank M. Lin http://www.facebook.com/ghettoracer on Feb. 19th, 2011 5:27am
The top three poisonous items you will encounter in daily use in Taiwan.
Out of all the items you use daily, what do you think is the most poisonous item? Middle school students from Six Harmony (liu-he) High School located Pingjhen City decided to perform some testing as their entry into the science fair. They soak disposable chopsticks in water and then used these water to raise black shell shrimp. The results? With in two hours the shrimps starting having convulsions and they all die with in a day and in five days they rot. The students used the results of this experience to enter a science fare and they placed 3rd. The students said disposable chopsticks are the most poisonous. And even if you soaked them with hot water, they are still deadly!
Middle school students from Six Harmony (liu-he) High School entered Tao-Yuan County’s science fare and they placed First and Third. And their results which identifies the most poisonous items encounter in daily use drew the most attention simply because this is practice information and greatly affects our life!
Instructors CHEN Nian-Wen, LIANG Si-Mei and students LIU Guan-Zhi, TSAI Yu-Rru, SONG Bo-Ru, HSIEH Hao-Ren… etc., found that the top three most poisonous items in daily use are #1 disposable, hot water soaked chopsticks, and the translucent plastic bags often used by restaurants for take out orders!
The students started the experiment with 500cc of cold water soaking the disposable chop sticks. Then they raise the temperature to 80 degree Celsius, then they let it cool down natrually. They repeat the above steps 10 times. Then they use the resulting water to raise five black shell shrimp. The shrimp will start to have spams and convulsions and they will die with in 24 hours. After five days, these water would get muddy and smelly and you can’t find any signs of the shrimps.
If you use these water to raise green bean sprouts, or duckweed aquaculture the results will be similar. With in five days the plants will die.
If you boiled the disposable chopsticks in hot water you might think that will reduce the toxicity.
The students used hot water to rinse the disposable chopsticks. Then they rinse the chopsticks 10 days in 500cc cold water like the earlier part of the experiment. They try to raise five more black shell shrimp and the end result is the shrimps dies on the second day. Obviously even boiling the disposable chopsticks did very little to remove its toxicity.
Students say, the ten repetition of soaking the disposable chopsticks will release some of the sulfur dioxide. Sulfur dioxide is used for bleaching and disinfection purposes. But the students did not examine the concentration of sulfur dioxide in water.
The students suggests if you can do with out disposable chopsticks, then don’t use it. If you must use it, soak it in hot water first in order to reduce the toxicity.
Ranked 3rd in toxicity was the translucent plastic bags. After you fill it with hot liquid, what gets released are Bisphenol A and plasticizers. The experiments shows the shrimps will all die in 3 days when raised with these water.