Grind for cold brew?

[Kudzu]

My daughter, a coffeeholic as serious as I am, is going to experiment with cold brew. I guesstimated a grind similar to French press as a starting point. Any tips or advice?

 

[Musicphan]

Yep - as coarse as you can get...

 

[Kudzu]

Yep - as coarse as you can get...

Thank you!