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Glass Sex Toys
The Importance of Strong, Nontoxic, Glass Dildos & Sex Toys

We specialize in the education of sexual health and are the leader in empowering education regarding nontoxic sex toys and other sexual products. That is why we must let you know that not all glass sex toys are nontoxic. In fact, some contain toxic chemicals in the glass and in some cases are in the paint used to decorate the glass.

It is important that you use a strong form of annealed glass otherwise you may find that it will crack or break fairly easily. Most of the glass dildos sold today are from China and are not properly annealed so this is a very important component to making sure your glass sex toys are safe. The last thing you want to happen is having a cheaply made glass sex toy break while they are inside of you.

Lisa Lawless
By Lisa S. Lawless, Ph.D.
Psychotherapist & Sexuality Expert

CEO & Founder of
Holistic Wisdom, Inc. & NAASAS

Copyright: Holistic Wisdom- Do NOT Copy Warning

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Our glass toys are annealed Pyrex® glass that is hand blown using patented designs called Borosilicate. They are handmade in the United States, properly hardened and are fully crafted for both intimate and aesthetic enjoyment.

Our nontoxic glass dildos are also lead free and we do not use spray paint like some competitors who have them made in China which may contain toxins. Our glass sex toys are made right here in the USA and are created by Master Glass Artisans who make each glass dildo with the artistic beauty and safety you deserve. Because they are handblown no two erotic art objects are ever exactly the same.

Pyrex® glass used to be strong and safe but the name Pyrex® really does that mean much these days as the patent and trademark was sold along with Corning to World Kitchen and some Pyrex® glass isn't actually quality glass anymore. In fact, when tested, old Pyrex® vs. new Pyrex® shows that there is a lot of stress on the glass meaning it is weak. Most educated glass makers these days will not have many positive things to say about the brand Pyrex® when talking about it as the glass itself. What is really important is how the glass is cured and if it is annealed properly which is what truly contributes to making a safe and strong glass sex toy.

There are some shady companies pretending to offer education to consumers and promising their products are safe when they actually are of very poor quality. In some cases they even go so far as to claim that cheap glass dildos are made from the same glass windows are typically made out (most often called Float Glass). These companies warn of how these sex toys will easily break into tiny bits and pieces, but these claims are extreme and false scare tactics. The truth is that while there are cheap glass sex toys that will crack under stress they are not made of the same glass as windows. What is interesting is that when tested, many of these companies that use such overt scare tactics actually have their glass sex toys fail basic stress tests when examined with a polariscope (a device that uses polarized light for material stress identification) thus, meaning they are essentially misleading their customers to think that because they do not use window glass their products their glass sex toys are durable when they are not.

Properly annealed Borosilicate Shott brand glass that our glass dildos are made with is slick, smooth and holds heat or cold nicely. It is dishwasher safe, microwave safe and has very strong durability. You can make these toys nice and warm to mimic a lover, or cold to create some interesting stimulation on various body parts. You can even keep hot water or ice near the bed to alternate. Keep in mind no matter how strong glass is that you have to gradually warm and cool them or they can crack when exposed to extreme swings in temperature. Our glass has no pores and absorbs nothing so when sanitized it is unable to transmit STDs, bacteria or smell. It does not stain and is not only a durable toy that will last a life time but is also quite beautiful.

Why Is Proper Annealing So Important?

Annealing is essentially the process in which a glass sex toy is cooled. Remember, that glass has to be created in very high temperatures (over 1000 degrees Fahrenheit) and then to cure properly they have to very slowly be cooled at a precise rate. In order to do this it takes time and money because you cannot quickly mass produce glass toys. This is why cheap glass sex toys are so dangerous because mass production in China does not take the time to anneal a glass toy properly meaning the glass is dangerous to use inside the human body as it may break.

Are Colored Glass Sex Toys Safe?

Only if it is done correctly. The safe way that color must be applied is by using a colored glass that is added inside the clear Pyrex glass. However, there must be a thick layer of the Pyrex glass that is added to coat the color in order to make it safe to use for durability purposes as well as for the optimal hygienic purposes. Only Master Glass Artisans understand how to achieve this and anything less than these methods can make the glass weak and certainly not safe to use sexually.

Our German Schott Pyrex glass is so strong that we have actually dropped it on to a concrete floor from 4 feet and it not only did not break the glass, it did not even crack. This does not mean it cannot break, or that you should try this yourself, however, we wanted to test how strong our glass dildos actually were and we were rather surprised at how much abuse they could actually withstand. You should of course never use any glass sex toy that has a crack or is broken.

Buyer Beware of Glass Paint

Some glass sex toys are decorated with spray paint or brush on paint on their surface or just below it, which is known as glass painting. Glass sex toys such as these are not safe to use. They can be quite toxic if used as a sex toy as the paint can contain arsenic, lead, mercury, sulfides, antimony, chromates and many other toxins. You most likely will not find lead in the cheap glass toys because leaded glass is more expensive and therefore wouldn't be used but consumers still have to worry about the paints and decals not to mention if it is actually strong glass and if it has been annealed. Paints can contain solvents that can degrade the skin and because the skin is absorbent these powerful toxins can cause extreme tissue damage and even cancer. Weak glass can crack and cause serious injury so make sure that if you purchase glass sex toys that you know what you are buying. Again, this is why we are very particular about the glass dildos that we sell and have a limited selection as we refuse to sell cheap, poor quality products that may break or cause health risks.

Why Properly Annealed Medical Grade German Schott Borosilicate Glass is Ideal

  • It is extremely strong and safe to use sexually.
  • Provides a slippery surface which allows for easy penetration vaginally, anally or orally.
  • Has no pores to absorb lubricants and minimizes the need for it.
  • Is able to be sterilized between uses and partners.
  • Is odor resistant.
  • Is hypoallergenic.


Our Borosilicate Schott glass is very easy to clean and can be washed with soap and water, sex toy cleaner as well as putting them in the dishwasher. Make sure the water is at room temperature before adding or removing Pyrex glass as sudden, drastic temperature changes may on rare occasions crack the glass. Remember to stay away from abrasives so as not to scratch it.

Heating Borosilicate Schott Glass

Since our Borosilicate Schott glass insulates and holds temperatures, warming your glass sex toy may provide additional sensory stimulation. The most safe and proper way to heat your Pyrex glass takes about 20 - 25 minutes. Make sure your Pyrex glass is at room temperature and then add very warm tap water directly on to it or by submerging in a bowl or sink. Keep it submerged for about 5 minutes. Carefully pour out or drain 1/2 to 2/3 of the water from the bowl or sink leaving the glass partially under water. If you want it warmer, you can then fill the remainder of bowl or sink with boiling water and allow it to soak for 20 minutes. Always test temperature before using Pyrex glass as it can burn skin at high heat. Remember, it holds its heat very well.

Cooling Borosilicate Schott Glass

Freezing glass toys is not a good idea. It may stick to skin or crack if thawed too rapidly. For this reason, we recommend avoiding extreme cooling or freezing methods. Use the same process to safely cool your toy as you use to heat it. Just substitute cool water for the very warm tap water and use ice water with ice cubes instead of boiling water. This Process should also take 20 - 25 minutes.

In Closing

Our medical grade Borosilicate Schott glass is a superior material for sex toys. Each toy is literally a work of art and makes a wonderful gift for yourself or your lover. We have had customers collect them and even display them as they are truly stunning. More than anything, they are fun and pleasurable to use and when properly taken care of will last a lifetime.

See Our Glass Dildos

Medical Grade Pyrex Glass Sex Toys & Dildos


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