Xhale does glass, and only glass. No vibrating or multi-part toys for them—glass can develop surface abrasions or microfractures if it rubs against glass or metal, which can ruin your toy and make it hazardous to your body. They adorn their glass toys with a rainbow of colors and shapes, but they only use materials which fuse with the glass—the 24-karat gold they use in some of their toys is actually vaporized, and their other colors and UV-reactive materials actually melt into the glass, leaving them safe for the body.
Their artisans use
borosilicate glass, which is very durable—the raw material has to be superior grade, and the craftsmanship has to be done by people with intensely developed skills to avoid ruining the glass by cooling it too quickly or putting too much stress on it. Their glass is imported from Germany (as well as a few select factories elsewhere in Europe), and then shipped out to their artists. This yields a product that is of the highest quality possible, and is made using all US labor.
With glass toys, you really do get what you pay for—many other companies make glass toys, but most of them do not use techniques to reduce the stress on the glass (specifically, they do not allow glass to cool down very slowly in a kiln to keep them from acquiring stress fractures; they usually put the toys on racks to cool in the surrounding air, which causes a much faster drop in temperature). There are stories of retailers that have come into their shop after a temperature change overnight to find a glass toy has shattered on display—and if they shatter during the cooler nights in a retail store, you can imagine how quickly they’ll crack in your home during play!
Another thing that I learned while talking to Adam was that
Pyrex glass—the original name brand of borosilicate glass—is now made in Japan and is generally considered to be of lesser quality (see link for details). There goes the idea that a brand name essentially signifies consistent high standards!
Xhale’s main energy consumption during the manufacturing process is the small amount of electricity (for the kilns where glass is brought to room temperature) and the propane and oxygen that are used to create the flame that the glass is worked under. Propane and oxygen torches are very environmentally-friendly, especially when compared to larger furnaces or open flames that are involved in other glass manufacturing.

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