A flower freeze-dryer is a drying equipment used for whole plants, petals, and flowers, employing low-temperature vacuum freezing drying technology. It is also known as a everlasting flower freeze-dryer. After freeze-drying, flowers can be preserved for a long time. In the flower industry, this dried flower, also known as ever-blooming flowers—everlasting flowers, conveys the meaning: flowers eternally bloom, love forever! "The love that never fades."

Although all are dried flowers produced by freezing-drying machines, they can retain the vibrant colors, aroma, and shape of the flowers, as well as long-term storage. In fact, the freezing-drying machine has another use: after the flowers are frozen-dried, the moisture inside the original flowers vaporizes and is condensed into ice by the machine's water trap. Once the flower freezing-drying is complete, the water trap is heated, and the ice melts into water, which flows out through the drain. This "original essence" flower water is a pure ecological moisturizing water, which should be the essence liquid in cosmetics.