Questions about FITT Yoyo Go

Is this FITT Yoyo Go hose (10m) really 10 m long in normal condition? and then grows to 20 m under pressure? I've read other things (test report on the internet) -> 10 m only under pressure! Normal length = 5 m. Please clarify this again with the manufacturer.

What is the size of the tap connection?

Is the hose food-safe? I read from another supplier that it is food-safe (i.e. suitable for drinking water).

Is this hose 10 m long in normal condition or in use? If it is 10 m in normal condition, then it would extend to about twice the length (according to the description), i.e. 20 m. Thank you for the feedback. @Galaxus: With garden hoses like this, there should clearly be two specifications so that we don't have to ask ourselves such questions.