I dont no if you have seen this, but it tests a lot of different well known makes and models and also juices with a nice conclusion to sum everything found up
Sorry if its been posted before, let me no what you think to it.
http://www.hsph.harvard.edu/centers-institutes/population-development/files/article.jphp.pdf
Joe
Sorry if its been posted before, let me no what you think to it.
http://www.hsph.harvard.edu/centers-institutes/population-development/files/article.jphp.pdf
Joe