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Re:Designing a Bottle by supernumerary on Wednesday July 19, 2017 @07:52PM (#14809006)
I think the one requirement for this design was:

"Just don't make it a bag and have the consumer have to squeeze it" - c.f. Juicero

Re:Designing a Bottle by microcolonel on Wednesday July 19, 2017 @10:52PM (#14809733)
By the way, you don't need to put a period in between the c and f in cf, it's shortened from ConFer. Typically it's styled "cf.".