Glass is made of: sand which is made from silica. It is a naturally existing material that does not give off any chemical residue, contaminant, or react to changes in temperature. We know it is safer than plastic because we know what denatured plastics do as a synthetic a.k.a. man made material. Any man-made material, ultimately, can harm our body in some way.
Answered 1/13/2016
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A doctor has provided 1 answer
4 doctors weighed in across 2 answers
A doctor has provided 1 answer
4 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
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