A the present invention relates to a method of adjusting the PLA beads, more particularly, to a foaming PLA beads foam. Furthermore, the present invention relates to a method of adjusting the molded product by sintering the PLA beads. The method includes supplying a PLA pellets A) unfoamed, B) heating the PLA pellets unfoamed the annealing temperature, the steps of saturated with the foaming agent, the C) PLA pellets was maintained at the annealing temperature, comprising the steps of saturated with a blowing agent, and a step of reducing the pressure of the saturated PLA pellets D) step C) was cooled to room temperature, to produce a foamed PLA bead foam.FIELD 1
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