These are used mostly for plastic containers in which appearance is a top priority. It is also possible to raise the base for container stacking purposes.
Molding technology FAQ
Is the champagne base design also used for PET wine bottles?
It may be used for design purposes, but many PET wine bottles have standard bottoms.
Why would one use champagne bases?
They are used almost exclusively for design purposes. We do not recommend their use for carbonated drink bottles. We recommend petaloid bases for carbonated drink bottles.