Container forming and filling using high viscosity product

A system for simultaneously forming and filling a container with a product comprising:

• a mold cavity defining an internal surface and configured to accept a preform;
• a two-stage injection unit configured to receive the product and dispense the product, the two-stage injection unit including a first stage comprising an extruder and a second stage comprising an accumulator, the extruder configured to impart mechanical energy to the product to reduce a viscosity of the product and transfer the reduced-viscosity product to the accumulator, the accumulator configured to receive the reduced-viscosity product from the extruder and dispense a charge of the reduced-viscosity product;
• and
• a blow nozzle configured to transfer the charge of the reduced-viscosity product dispensed from the accumulator into the preform to urge the preform to expand toward the internal surface of the mold cavity and form a resultant container, where the reduced-viscosity product remains within the container as an end product.