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WHY STAINLESS STEEL STRAWS?
STAINLESS STEEL STRAW PHYSICS
The most important thing you need to know about Stainless Steel Straws is that they do not get thinner when you suck on them.
This means that you do not need a thicker diameter straw in most instances.
Single use plastic straws contract and shrink with the vacuum created when you suck on them, meaning thicker liquids move more slowly up the straw. This is not the case with metal reusable drinking straws.
So you can drink a smoothie comfortably with a 6mm internal diameter straw with a 8mm external diameter. Try it yourself.