how the glass ampules containing liquid drugs are made without destroying the drug?
In: Engineering
[With a blowtorch!](https://youtu.be/GEmINGq8HDQ?feature=shared)
Liquid is filled into a small glass cylinder, and the opening of the top of the cylinder is heated until it melts and crimped close with a tool like needle nose pliers. Only the top of the glass container is heated while the liquid sits at the bottom of the container.
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