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Guide
TL;DR
Warm a glass toy with warm to hot tap water. Cool it with cool tap water, the fridge or a bowl of ice water. Never go hotter than hot tap water, and never boil a piece for play. Dry it and do the wrist test every time.
Temperature play means using a toy that is warmer or cooler than room temperature. Some people enjoy it. Some people do not. It is a personal preference, nothing more.
Glass is well suited to it. Every piece we sell is borosilicate glass, non-porous and made as a single solid piece.
When glass changes temperature quickly, some parts expand or shrink faster than others. That creates stress inside the glass. Borosilicate expands roughly one third as much as ordinary soda-lime glass, so it resists thermal shock far better. That is why it copes with the fridge, a bowl of ice water and hot tap water.
It is not immune, though. A chip or crack is where glass fails. Gradual change is the sensible habit, along with a quick look at the piece every time you use it.
If you are new to glass toys, start there. Temperature play is an option, not a requirement.
Our FAQ puts it simply: "Hold it under warm or cool running water before use." There are two ways to warm a piece.
Running water
1
Check the piece for chips or cracks.
2
Run the tap until the water is warm.
3
Hold the piece under the stream and turn it so it warms evenly.
4
Give it a minute or so.
5
Dry it and do the wrist test.
A bowl of warm water
1
Fill a bowl with warm to hot tap water.
2
Lower the piece in and leave it for a few minutes.
3
Take it out, dry it and do the wrist test.
How warm is too warm? The ceiling is hot tap water, up to about 120 F (49 C). Never use boiling water to heat a piece for play. Aim for a piece that feels comfortably warm on your inner wrist, not hot.
Three methods work well.
Running cool tap water. Hold the piece under the stream for a minute or so, turning it as you go.
The fridge. Set the piece on a clean shelf. Around 10 to 30 minutes is typical. Take it out, let it sit for a minute, dry it and do the wrist test.
A bowl of ice water. Leave the piece in for a few minutes. Then dry it and do the wrist test.
Start with less time and add more if you want it cooler.
Once the piece is dry, add lube as you normally would. Any lube works with glass.
Do the wrist test every time, before use.
Dry the piece first. Then hold it against your inner wrist for a moment. Skin inside the body is sensitive. If the piece feels too hot or too cold on your wrist, it is too hot or too cold. Set it down at room temperature for a minute or so and test again.
One direction per session. Change temperature in one direction per session. Do not go straight from very hot to very cold, such as from hot tap water straight into a bowl of ice water, or the reverse. If you do want to switch, let the piece sit at room temperature for a minute or so between extremes.
These are off the table.
The freezer. This is not because borosilicate cannot take the cold. Glass that cold can stick to skin and damage moist tissue, and it makes a drastic temperature swing likely.
The microwave.
The oven.
The stove, or any flame, lighter or hair dryer.
Boiling water to heat a piece for play.
Leaving it in a hot car.
Any chipped or cracked piece. Stop using it. Do not warm or cool it.
A note on boiling. Boiling is for cleaning only, and it is a separate matter from play. It applies only to solid borosilicate with no attachments, and you should use tongs. The piece must cool fully before you use it or store it. Never use a just-boiled piece for play. Our guide on how to clean glass sex toys covers cleaning in full.
Look your piece over before and after every use. Check the whole surface in good light for chips, cracks or rough spots. Our glass safety guide goes into more detail.
If you find damage, stop using the piece. Do not warm, cool or use it.
If you have a health condition that affects sensation or circulation, talk to a doctor before trying temperature play.
Q: How long does it take to warm or cool a glass toy?
A: A minute or so under running water, or a few minutes in a bowl. The fridge typically takes 10 to 30 minutes. Always dry it and do the wrist test.
Q: Can I put my glass toy in the freezer?
A: No. Borosilicate can take the cold, but glass that cold can stick to skin and damage moist tissue. Use the fridge or a bowl of ice water instead.
Q: How hot can I make it?
A: No hotter than hot tap water, up to about 120 F (49 C). Never boil a piece for play. Aim for comfortably warm on your inner wrist.
Q: Can I go from warm to cold in one session?
A: Stick to one direction per session. If you do switch, let the piece sit at room temperature for a minute or so first.
Q: What if I notice a chip or crack?
A: Stop using the piece and do not warm or cool it. If it arrived damaged, defective or wrong, report it within 5 days of delivery. Our FAQ has more.
