You will need
  • A few roses, apparatus for freeze dry (sublimation machine).
Instruction
1
Separate the rose petals. You can freeze and a rose with a stalk, but the process may take much more time and lead to unpredictable results. It is recommended to freeze the petals.
2
Place the petals into the apparatus to dry deep freeze and set temperature equal to -7 degrees Celsius. Frost roses will occur in the vacuum space, which will speed up the freezing process.
3
After completion of the freezing process install normal (room) temperature on the unit, which will gradually return to a new temperature state. The rest of the process called "sublimation", will take about two weeks. During this process the water contained in the petals, turns into a gaseous state, allowing to permanently preserve the color and shape of the petals.
4
Store frozen rose petals should be in a cool dry place or in the refrigerator.