Raw denim jeans for sure. I like to hand wash my jeans. Sometimes though I'm too lazy so I'll put them in a delicate cycle with a little bit of soap. I don't think the freezer thing works that well. It might freshen the jeans up some, but obviously don't clean them. I learned a lot of what i know from this article:

https://www.washingtonalley.com/blogs/raw-denim/the-10-things-to-know-about-raw-denim-before-purchasing

It made me comfortable with raw denim.

I've done all types of washing for my raw denim. The problem with the freezing of jeans is that it doesn't actually clean off any of the dirt which is still going to break down your jeans. So even if I freeze them to kill bacteria I still had to spot wash them. I've ended up either hand washing my raw denim in the bathtub with a little bit of soap and hang drying or if I'm being lazy I'll put then in the washer by themselves on a delicate cycle and then hang dry. I only do that like once every 6 months. I want the fade to come from me not the wash. I've been doing this for awhile and this article is the best I've seen on it. https://www.washingtonalley.com/blogs/raw-denim/the-10-things-to-know-about-raw-denim-before-purchasing