Biodegradable insulative shipping container

A method of manufacturing a biodegradable insulative shipping container, the shipping container having two container halves, for each container half, the method comprising the steps of:

• providing a substantially rectangular prism shaped outer tray comprising a pulp material, the outer tray having side walls that extend substantially perpendicularly to each other and a bottom;
• providing an inner tray comprising a pulp material, the inner tray having a top, a peripheral edge at the top, the peripheral edge substantially rectangular and including four flaps extending outwardly therefrom and bendable to extend downwardly therefrom, and an irregular concave valley including a continuous surface that extends downwardly from the peripheral edge to define an interior volume that is adapted to receive shipping goods;
• creating a void between the concave valley and the bottom of the outer tray by aligning the peripheral edge of the inner tray with the side walls of the outer tray;
• filling the void with biodegradable insulative material by placing a prefabricated substantially solid insulation tray comprising a biodegradable insulative material in the void between the inner tray and outer tray;
• and
• sealing the inner tray to the outer tray by heat pressing the inner tray, insulative tray, and outer tray together.