There are Flatten Glass Bottles.

Flattened glass bottles can be an interesting piece of artwork, a drinks tray, or a fancy cutting board.It is not possible to lump bottles with normal household appliances, but once you have a kiln the process is easy to learn and fun to experiment with.Call the emergency services immediately if you have an accident with glass.

Step 1: You can get access to a kiln.

To lose its shape, glass must be heated to 1500oF.If you want to achieve this temperature, you’ll either have to buy an electric kiln yourself or find a local ceramics studio that rents out kiln space.An electrician will usually install a new circuit for an electric kiln.The kiln may fail to reach the right temperature.

Step 2: Follow safety precautions.

Wear kiln gloves and goggles when working in a kiln.Always operate the kiln in aventilated room and wear a mask whenever you are handling or cleaning dust or sprays.kiln interiors are much hotter than an oven or fireplace.Ask for advice from an experienced ceramicist or fused glass artist before you start.

Step 3: The kiln floor and shelves should be protected.

If you don’t follow this step, spilled glass fragments could damage your kiln floor or shelves.Two of the materials used to prevent this should be handled while wearing a mask.Whenever it starts to look different, this protection should be reapplied.You can buy a glass separator in powder form and mix it with a liquid.Wait for it to dry after brushing it on in at least four coats.The surface should be as smooth as possible.Cut kiln paper to the shape of the shelf.It can be used as a protective surface between the glass and the shelf if you place it in the kiln and blacken it.

Step 4: There is a shelf in the kiln.

The floor of the kiln should be raised to allow air to circulate between them.Place the kiln posts on the floor and put the shelf on top of them.Glass bottles will go on top of the shelf when it’s time to fire them.

Step 5: It is possible to create a ceramic mold.

If you prefer a taco shell shaped bottle instead of a flat tray, press the bottle into clay to form a mold.All molds should be protected with a kiln wash or glass separator.It may melt during firing if you use clay intended to be fired around 1500oF.

Step 6: Remove the label from the bottle.

Leave the bottles in a bucket of hot water and household detergent for a few hours, or scrub them with hot, soapy water.Use a hard plastic object to remove paper labels and stickers.If you want to save the paper label, melt it with a heat gun.As long as the bottle remains still during firing, painted labels will survive and make a great design.If you want to avoid fingerprints, wear gloves and clean with alcohol.

Step 7: It is possible to apply devitrification spray.

This product prevents the crystallization of glass that causes a cloudy appearance.Not all types of glass are susceptible to devitrification, and cleaning the glass helps a lot already.When you want to be extra careful, use the spray.

Step 8: It is possible to add a wire hanger.

If you want to hang the bottle after that, place one end of the wire into the neck.There’s no need to attach it yourself because the bottle will close around the wire.The best wire is high temperature.Most wires will work, but aluminum will melt and copper and brass can be left on the bottle.

Step 9: The bottles should not be rolled.

You can place the bottles on the kiln shelf.If they are in danger of rolling, prop them up with crushed glass or small rolls of kiln paper.This will create an impression on the back of the bottle, but it’s better than having a bottle roll to the side and damage your kiln wall.It’s important to keep bottles with painted labels.

Step 10: The kiln should be fired to 1100oF.

At a rate of +500oF, heat the kiln until it reaches 1100oF.This will heat the bottles.The risk of cracking ceramic molds can be reduced by using a slower heating rate.

Step 11: For ten minutes, hold this temperature.

Every part of the glass should be soaked at this temperature.To find out how long to keep the kiln at each temperature, pay close attention to the steps below.

Step 12: It is advisable to heat more slowly.

For a little over an hour, heat the kiln at a rate of no more than +250oF.The glass will lose its shape in the middle at this point.If you want the middle to keep more of its shape, you can keep the temperature here for 20 minutes.

Step 13: The temperature is about 1450oF.

If using ceramic molds, heat at a rate of +300oF.Until the bottles have fallen to the desired appearance, stay at this temperature.Depending on your bottles, kiln, and desired appearance, this is the step that changes the most.Consider the numbers as a starting point for your project.While looking through a peephole, always wear eye protection.If the kiln doesn’t have a window or peephole, you can not check on the bottles.

Step 14: The kiln can be vent to about 1000oF.

If you want to protect yourself from the heat, lift the lid of the kiln and let it cool quickly.The less time the bottle spends at high temperatures, the lower the chance of devitrification.

Step 15: The glass was Anneal.

Glass can crack or become brittle if it is notannealed, a process in which the glass molecule are rearranged in a more stable pattern before they cool.The simplest way to do this is to let the kiln cool gradually, never by more than -150oF (-80oC) per hour.If the kiln cools faster than this, you need to fire it occasionally to counteract the cooling.Leave the kiln at 900oF for a full hour.If you want to be extra safe, you could leave it at 1000oF and/or 800oF for an hour each, starting with the highest temperature first.

Step 16: The kiln can be cooled to room temperature.

The bottles should have fallen down.If you used kiln paper and the fibers stuck to the bottle, wear a mask while cleaning them off the glass.