She writes: ‘When tested with an XRF instrument this glass Pyrex measuring cup had the following readings:
- Lead (Pb): Non-Detect/ND [Negative]
- Cadmium (Cd): 326 ppm [in the red writing on the outside of the glass.]
‘Cadmium is a known possible carcinogen and does not belong in our cookware.
‘There are only two relevant standards for total Cadmium content. In Washinton State something is considered illegal if it has more than 40 ppm Cadmium. In Denmark something is considered unsafe or illegal if it is 75 ppm Cadmium or higher.’
Tamara adds: ‘As always, I feel it is prudent to go with the lowest (most strict) toxicity limit for any toxic chemical – so, based on this information, I would feel comfortable saying that items with 40 ppm cadmium or more should not be considered safe for use by children.’
Tamara says she’s also found lead in other vintage Pyrex measuring jugs she’s tested and says there are some tell-tale signs for homeowners to be aware of when trying to assess whether their vintage Pyrex is at risk. Click here for more.
And to read more about the concern for Cadmium (Cd) in cookware, check out Tamara’s thoughts here.