A glass can made from borosilicate glass. Borosilicate glass has higher thermal and shock resistance than other types of glass , making it highly inert and this is also the reason it is mostly used in chemical labs as test tubes and beakers because it is highly non reactive ! Use this glass can to drink your coffee , tea or any beverage of your choice without worrying about plastic contamination. When boron trioxide is melted and fused with silica sands, it becomes inert and highly stable. Even if exposed to chemical reactants, the boron cannot escape its glassy prison, keeping you safe from its toxicity. It�s so stable that borosilicate glass is even used in nuclear reactors to prevent radiation from leaching from waste