4 ms·
Polyethylene doesn't seem that new or untested, and it's unlikely for it to contain rings, so it doesn't seem so bad. Perhaps the catalyst used that can't be p
by chaxor 3y ago
Polyethylene doesn't seem that new or untested, and it's unlikely for it to contain rings, so it doesn't seem so bad. Perhaps the catalyst used that can't be pulled out after. Last time I checked I think it was a homogeneous chromium based catalyst that is used for PE, but it ends up being a very small amount left over.
- reaperman 3y agoPE can still contain aromatic plasticizers, especially when there's a need for them to be more flexible.
- adrian_b 3y agoPure polyethylene and polypropylene are completely inert and safe in contact with food (if they are not heated). The problem is that it is currently impossible to know whether the PE or PP used in some plastic vessel is pure or it contains significant quantities of various fillers that have been added for reducing the cost of the material or the cost of various processing steps through which it has passed. The PE or PP vessels that are translucent and not colored are more likely to contain less undesirable fillers than the vessels that are opaque and/or colored. What is needed is to have stricter laws about food-contact materials, where the manufacturer must disclose the exact chemical composition of such materials and they must not be able to claim that this is proprietary information that may be kept secret, like today.