Got an answer to my question. Thought I would post it incase anyone else has the same question.
Yes, both the plastic bowl and SS bowl are heat safe. Depending on the thickness of the fudge I would maybe suggest the SS bowl with the roller and scraper rather than the beaters that go with the plastic bowl. Hope this helps.
US Importer of the Ankarsrum Original Mixer
I’m not sure about fudge, but the Ankarsrum manual does suggest that you can use it for marshmallows and…”. NOTE: The beater bowl is heat safe and boiling sugar can be poured into it.”
I would reach out to http://www.ankarsrumoriginalusa.com with this question and see what is possible for fudge. Great question, I hope you can. My grandma made fudge until nearly 100 years of age and I marveled at the strength of her arm.
Looking into getting an Ank. My non bread question is: can you mix hot things in it? I make fudge and need to mix boiling sugar/butter mix with chocolate. I don’t think it can be done in an Ank. I currently use my kitchenaid for this.