There is true (as per ISO standard) borosilicate glass available in Europe under various other marks (Simax, Boral,...). We use it widely but as it's softer tha

There is true (as per ISO standard) borosilicate glass available in Europe under various other marks (Simax, Boral,...). We use it widely but as it's softer than regular glass it's prone to scratches and subsequent catastrophical failure. Unlike lab reagents, food can contain sand grains and scratch the glass. Maybe that's the reason why Pyrex isn't borosilicate anymore.