Do your research on the container you want to use. I just read that some plastics can leach BPA, so that is a concern.

Here's the info:

The food industry and major business groups, including the U.S. Chamber of Commerce, are threatening to withdraw support for a long-pending bill to improve food safety, saying they are upset by a proposed amendment that would ban bisphenol-A, a controversial chemical, from food and beverage containers.

BPA is used in thousands of consumer goods, including compact discs, dental sealants, and credit card and ATM receipts, but health advocates say they are most concerned about BPA's presence in plastic food containers, bottles and the epoxy linings of metal cans because it can leach into food and beverages. It is found in the urine of more than 90 percent of the U.S. population, according to federal estimates.

BPA was developed in the 1930s, and commercial uses exploded in the 1950s after scientists discovered its ability to make plastics more durable and shatterproof. A ban would create significant problems for many food manufacturers who do not have BPA-free alternative packaging, Faber said.

[link to www.washingtonpost.com]


not to diminish the concern any, but think about the crap they put in the fertilizers in the dirt, the crap that is in our water, the crap that is in plastics that our food is wrapped in and cooked in and microwaved in, the crap that is in our fillings in our teeth, the deodorant on our pits, hair spray in our lungs, perfume, soaps, dish detergents, stuff that we get on our clothes just from walking through the air of a city full of pollution, animals and all the crap they bring into the house.
yes, be careful with what you grow your veggies in, but I think maybe the amount of anything leeching into one plant over one season, into the actual veggie, might be safe enough to eat it.