Borosilicate glass is a type of glass that contains boron trioxide which allows for a very low coefficient of thermal expansion. This means it will NOT crack under extreme temperature changes like regular glass. Its durability has made it the glass of choice for restaurants, laboratories, wineries & homebrewing.
Regent Bottles are ideal for the boiling and storage of wort for your starter, or transporting yeast from yeast starters.
Simply place in microwave to sterilise wort then cap and put in fridge until you need to make your starter.
The whole bottle can be autoclaved.