Borosilicate glass in compare with regular sodium glass:
Factor of thermal expansion is couple times lower
Higher thermal resistance. Higher resistance of thermal shock
Higher chemical resistance. Resistant to tarnishing during washing up.
Higher resistace to scratches, impacts and bumps.
Smoother surface, easier to clean.
Doesn’t contain hazardous substances (eg. lead).
This applies to all products in Premium category.
Here’s a link to Alexis Wallace article (read it! she’s waaay smarter than we are!):
Filtration through activated carbon removes a large percentage of harmful tar.
The activated carbon absorbs the substances from combustion process, such as carbon dioxide.