[french fries]

Doesn't plastic leach out chemicals when heated?

 

[french fries]

Quote:

Doesn't plastic leach out chemicals when heated?

Yes, it does:

(...) our data suggest that almost all commercially available plastic items would leach detectable amounts of chemicals having EA once such items are exposed to boiling water, sunlight (UV), and/or microwaving.

Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3222987/

 

[french fries]

But sous vide is low temperature cooking. Most food grade bags are fine with it and Ziplok vac/sous vide bags are made for it.

Good point. But if chemicals leach out at 100C then I wonder what happens at 85C. Haven't read the whole paper so I don't know if they tested it at those lower temperatures. I don't like the idea of plastic in contact with my food, even cold plastic, even less warm or heated plastic.