Never had a glass one shatter. They are fairly thick though. Did drop it in the shower,but fortunately caught it. Hands were wet and little soapy. Be sure not to boil then put in cold water. Good chance it could crack from rapid temperature change.

Metal like njoy pure wand and plugs are the Bestest. Now if you drop the njoy pp 2.0 or pure wand or the mighty Eleven on a ceramic tile floor,the floor may crack. less

I have a significant number of glass items, I'm moving away from plastic and silicone.

Glass is great but metal is better.

That said, glass is slightly safer for temperature play than metal, while metal is way longer lasting both in temperature and longevity of the item itself.

That may sound counter intuitive but let me explain:

The melting point of most glass is 1600*C (2912*F) while the melting point of stainless steel is 1400*C (2552*F). Now whilst you would never heat a toy this hot it explains that the thermal capacity of glass is higher than metal.

Congruently however, metal can retain heat longer than glass as metal conducts heat better, while glass is an insulator.

What does this all mean...

You stick a glass & metal toy into a hot bucket of water, HOT not boiling water, and let them heat. You pull both out, the metal toy will radiate heat thus feel hotter and stay hotter longer which is a good thing except while it may feel warm in you hand the metal could easily burn the delicate flesh of the vagina or anus even with thermal lube, if you are not careful, that is because metal is a conductor of heat. The glass toy on the other hand insulates the heat, while it will not stay as hot the heat is insulated in the core and radiates warmth less directly compared to the metal and thus less chance of burning if you are not used to temperature play.

Now lets put a glass & metal toy in the freezer or a bucket of ice water. Metal will cool quickly while glass may take longer. When you take them out of the cold you may feel the metal to be subjectively colder. That is because the metal is trying to get rid of the cold as fast as it can. Ever seen a person lick a sign post, tounge gets stuck. Same thing happens if you stick an over chilled metal toy in a vagina or anus. Now have you ever seen a person lick a frozen window? Tongue won't stick, it may still freeze and burn but it will not stick like metal. That is because the insulating properties of glass try to keep the toy colder. It gives off it's chill less intensely and thus is far safer for extreme low temperature play.





In general however metal will last longer, glass will break if dropped while metal will dent. If you have imperfections in the glass it could shatter if you put in a microwave to heat, but it you only heat using water it is doubtful it will ever get hot enough to explode.

You can, if you like, risk it and test your glass (solid glass not mixed or gel filled) by microwaving on of low for 1-2 minutes. If it cracks under the heat then there was air bubbles trapped inside and could have potentially shattered at high or low temp. If it does not crack then there are no imperfections and the glass is safe for even the most extreme of temperature play. However in this method you risk breaking your toys and possibly damage your microwave if it did explode.

I advise against testing if you have had no issues to date. And i advise use metal if you are familiar with temperature play. If you are not familiar go with glass and always have a thermometer. less

I have a significant number of glass items, I'm moving away from plastic and silicone.

Glass is great but metal is better.

That said, glass is slightly safer for temperature play than metal, while metal is way longer lasting both in temperature and longevity of the item itself.

That may sound counter intuitive but let me explain:

The melting point of most glass is 1600*C (2912*F) while the melting point of stainless steel is 1400*C (2552*F). Now whilst you would never heat a toy this hot it explains that the thermal capacity of glass is higher than metal.

Congruently however, metal can retain heat longer than glass as metal conducts heat better, while glass is an insulator.

What does this all mean...

You stick a glass & metal toy into a hot bucket of water, HOT not boiling water, and let them heat. You pull both out, the metal toy will radiate heat thus feel hotter and stay hotter longer which is a good thing except while it may feel warm in you hand the metal could easily burn the delicate flesh of the vagina or anus even with thermal lube, if you are not careful, that is because metal is a conductor of heat. The glass toy on the other hand insulates the heat, while it will not stay as hot the heat is insulated in the core and radiates warmth less directly compared to the metal and thus less chance of burning if you are not used to temperature play.

Now lets put a glass & metal toy in the freezer or a bucket of ice water. Metal will cool quickly while glass may take longer. When you take them out of the cold you may feel the metal to be subjectively colder. That is because the metal is trying to get rid of the cold as fast as it can. Ever seen a person lick a sign post, tounge gets stuck. Same thing happens if you stick an over chilled metal toy in a vagina or anus. Now have you ever seen a person lick a frozen window? Tongue won't stick, it may still freeze and burn but it will not stick like metal. That is because the insulating properties of glass try to keep the toy colder. It gives off it's chill less intensely and thus is far safer for extreme low temperature play.





In general however metal will last longer, glass will break if dropped while metal will dent. If you have imperfections in the glass it could shatter if you put in a microwave to heat, but it you only heat using water it is doubtful it will ever get hot enough to explode.

You can, if you like, risk it and test your glass (solid glass not mixed or gel filled) by microwaving on of low for 1-2 minutes. If it cracks under the heat then there was air bubbles trapped inside and could have potentially shattered at high or low temp. If it does not crack then there are no imperfections and the glass is safe for even the most extreme of temperature play. However in this method you risk breaking your toys and possibly damage your microwave if it did explode.

I advise against testing if you have had no issues to date. And i advise use metal if you are familiar with temperature play. If you are not familiar go with glass and always have a thermometer. less

I have a significant number of glass items, I'm moving away from plastic and silicone.

Glass is great but metal is better.

That said, glass is slightly safer for temperature play than metal, while metal is way longer lasting both in temperature and longevity of the item itself.

That may sound counter intuitive but let me explain:

The melting point of most glass is 1600*C (2912*F) while the melting point of stainless steel is 1400*C (2552*F). Now whilst you would never heat a toy this hot it explains that the thermal capacity of glass is higher than metal.

Congruently however, metal can retain heat longer than glass as metal conducts heat better, while glass is an insulator.

What does this all mean...

You stick a glass & metal toy into a hot bucket of water, HOT not boiling water, and let them heat. You pull both out, the metal toy will radiate heat thus feel hotter and stay hotter longer which is a good thing except while it may feel warm in you hand the metal could easily burn the delicate flesh of the vagina or anus even with thermal lube, if you are not careful, that is because metal is a conductor of heat. The glass toy on the other hand insulates the heat, while it will not stay as hot the heat is insulated in the core and radiates warmth less directly compared to the metal and thus less chance of burning if you are not used to temperature play.

Now lets put a glass & metal toy in the freezer or a bucket of ice water. Metal will cool quickly while glass may take longer. When you take them out of the cold you may feel the metal to be subjectively colder. That is because the metal is trying to get rid of the cold as fast as it can. Ever seen a person lick a sign post, tounge gets stuck. Same thing happens if you stick an over chilled metal toy in a vagina or anus. Now have you ever seen a person lick a frozen window? Tongue won't stick, it may still freeze and burn but it will not stick like metal. That is because the insulating properties of glass try to keep the toy colder. It gives off it's chill less intensely and thus is far safer for extreme low temperature play.





In general however metal will last longer, glass will break if dropped while metal will dent. If you have imperfections in the glass it could shatter if you put in a microwave to heat, but it you only heat using water it is doubtful it will ever get hot enough to explode.

You can, if you like, risk it and test your glass (solid glass not mixed or gel filled) by microwaving on of low for 1-2 minutes. If it cracks under the heat then there was air bubbles trapped inside and could have potentially shattered at high or low temp. If it does not crack then there are no imperfections and the glass is safe for even the most extreme of temperature play. However in this method you risk breaking your toys and possibly damage your microwave if it did explode.

I advise against testing if you have had no issues to date. And i advise use metal if you are familiar with temperature play. If you are not familiar go with glass and always have a thermometer. less