My first blender had a twist and lock lid on it -and if I would have read the instructions I'd have known that before I spent 2 hours washing down the ceiling and cabinets. Cooking wise I only have problems with fudge and gravy --Fudge never gets solid and gravy is solid enough to be used for pot hole repairs. So I decided to take this as a sign that they must be bad for me. But I am blessed with a wonderful family -Dad makes me fudge and at big family gatherings they send me home with all the left over gravy. : )