Coated paperboard container, method of manufacturing a coated paperboard container, and cup bottom forming apparatus

A method of manufacturing a coated paperboard container, the method comprising:

• providing a coated paperboard bottom blank, the coated paperboard bottom blank comprising a paperboard substrate and a first barrier coating layer on a first outermost surface of the paperboard substrate, wherein the first barrier coating layer is an aqueous barrier coating layer;
• heating the coated paperboard bottom blank, wherein heating the coated paperboard bottom blank comprises heating at least a portion of the coated paperboard bottom blank to above 90° F.;
• shaping the heated coated paperboard bottom blank while the portion of the coated paperboard bottom blank is above 90° F., thereby forming a peripheral skirt portion about a periphery of a bottom wall portion of the coated paperboard bottom blank;
• and
• sealing a coated paperboard sidewall to the first barrier coating layer of the peripheral skirt portion.