Proposing Process and Experiment of Drying Roses by Freeze-Drying Method

Rose, Fresh Rose, Dried Rose, Freeze-Drying Method, Natural Color

Authors

  • Nguyen Van Hong Faculty of Mechanical Engineering, HCMC University of Technology and Education (HCMUTE), Thu Duc-71307, Ho Chi Minh City, Viet Nam
  • Nguyen Hoai Nam Faculty of Mechanical Engineering, HCMC University of Technology and Education (HCMUTE), Thu Duc-71307, Ho Chi Minh City, Viet Nam
August 30, 2021

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Roses, both fresh and dried, often appear during festive occasions. However, fresh roses do not last long, and dried flowers are marinated with environmentally unfriendly chemicals. This paper proposes the procedure and experiment of drying roses by the freeze-drying method. After drying by the proposed method, the results show that the rose color changes very slightly but still retains its natural, eye-catching, and environmentally friendly appearance.