回复 1楼johncliff的帖子 in another poster, i said i am using 1:10 diluted solution from commercial bleach(original around 5-8%), which can be used for outer side of package cleaning. For fruit and vegetables, google it. Commercial bleach concentration about 5-8%, so do not need to think too much about dilution, just about 2 teaspoons bleach( 10mL) with one gallon water should be fine. Because you are not doing scientific experiments, final bleach concentration not the point, hehe.... computor slow for chinese in-put...
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