It is called soft glass because it melts at about 1/2 the temperature as borsilicate. But what is really neat, is that soft glass is actually more dense than boro.
Soft glass is NOT soft, German steins are made of soft glass for Brosting.
It is called soft glass because it melts at about 1/2 the temperature as borsilicate. But what is really neat, is that soft glass is actually more dense than boro.
Soft glass is NOT soft, German steins are made of soft glass for Brosting.