The butter has a very distinct smell that I can't really put my finger on but it doesn't really smell like weed. I've also realized I'm sort of immune to the smell... so it may be stronger than I thought it was, but I could only smell it when I opened the lid on the slow cooker. And it smelled pretttty gross lol. I really hate the way cannabutter tastes/smells, but I know some people don't mind it. When I baked the cookies I just smelled cookies with a slight undertone of cannabutter. But overall, not a very strong-smelling process and totally worth it.