Why are some plastic bottles thicker than other? Surely the amount of plastic being user to mold a bottle is highly controlled
In: Engineering
depends on what’s being held and the actual plastic being used.
For drinks or food you want a thin plastic, you want it to be BPA and leech resistant, so the type of plastic you want to use changes, cleaning supplies or other chemicals need thicker bottles, or more resistant plastics, and since you´re clearly not going to drink bleach, it dosnt have to be food grade safe,
Also theres the issue of photosensitivity so some materials require the plastic to be a specific color or even fully opaque.
TL;DR : thickness, composition and transparency change depending on what you want to put inside if it.
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