Russet potatoes make horrid mashed potatoes.
I wouldn’t do them with skins, but I’ve done them without. Yukon gold are my #1 choice, and reds are my #2.
Why was that? I cant remember what I made mashed potatoes with. It’s been a long time maybe i used red skin potatoes.
I usually used reds but the store ran out so I bought russets. They tasted like chalk.