Paper straws are bought on price per thousand and judged halfway down a glass. These four decisions are what decide the second part.
Ply count is the specification
A paper straw is a ribbon wound into a spiral. The number of plies in that wall decides how long it holds its shape once it is wet.
Most straws that collapse are 2-ply. A 3-ply wall lasts far longer in a cold drink. Ask for the ply count in writing; a supplier who will not give one has answered the question.
The adhesive decides the seam
The spiral is glued, and a glue that softens wet lets the seam open. Once the seam opens, the straw unwinds and the wall thickness stops mattering.
Ask for a food-safe wet-bond adhesive by name. It is the specification that gets left off every listing and it is half the product.
Bore and wall follow the drink
A soft drink needs a standard bore. Bubble tea needs a bore wide enough to pass pearls and a heavier wall to survive the suction. A cocktail stirrer needs a narrow bore wound stiff, because stirring loads the tube sideways and that is a harder job than sipping.
One straw does not cover all three, and ordering a generic straw means one of your drinks gets the wrong one.
Print has to follow the winding pitch
The artwork is printed flat on the ribbon before the straw is wound. If the layout ignores the pitch, a wordmark gets chopped into fragments that never line up.
That is why so many branded straws look accidental. It is a layout problem, not a print quality problem, and it is fixable at proof stage for nothing.
What to send when you ask for a quote
What you are serving, your cup height, whether cups are film-sealed, whether you need individual wrapping, and your artwork. That is enough for a real quote and a mockup the same day.
A straw is a very narrow canvas. Most logos need simplifying rather than scaling, and we redraw free.