They have an Industrial Dishwasher. It's pretty good at blasting dishes, bowls, plates, cups, utensils, etc, things with all their surfaces easily exposed and no narrow inner areas, with hot water and a bit of chemicals like detergents to get things clean. Maybe it's some other device for smaller faster loads.
Cleaning a straw properly, _drying_ it properly. That sounds like a giant pain. Potentially a massive liability. (Detergents stuck in the straw? Someone's food and diseases not cleaned properly?)
I could see Silicone straws maybe working, but not as well in a lot of respects. They'd need a specialized cleaning process. Maybe boil in water with something to force (and measure) water flow through them. Then transfer to a baking chamber to dry and sanitize with heat. This sounds labor and energy intensive. Just gut instinct, I'm pretty sure it'd be cheaper to use some of that industrial compostable plastic to make a plastic straw. If some paper straw that didn't suck (as outlined in my other post) were used instead that'd be OK too.
* Leave my dang plastic straws alone or at least make any degradable replacement take longer than a week to degrade and __not crumple like a limp noodle__ during normal use.
* 1000% yes on this inanity of selling bags. Require standard grade carry out bags all be complimentary (this will drive stores to get the cheapest ones that don't irk customers), and just outright ban plastic for 'bags'. Do not specify exactly but require that any take out bag be (non commercially) compostable, or recycled (for real, not export to someone that just treats it as trash).