Caution for borosilicate glass cup

We know , borosilicate glass is heat resistant and mouth blown. Now ,  there are a lot of single wall or double wall glass cups in the market.  And we will use them gradually. But,  do you know the caution for borosilicate glass ? I guess many people have no exact idea how to use it.  See the caution for borosilicate glass below so that we can take care of it in our life.

 1. Beer, red wine, white wine, beverage or hot water not be too full

  2. To avoid to hurt your children's hand, please put it in the place where they can't reach
  3. Avoid dropping ,Collision and strong impact
  4. Not available for microwave oven
  5. To prevent it from cracking, do not put it over open fire directly 

If you have any query for borosilicate glass , you can contact with Peggy Xu : sales38@sunnyglassware.com