The Art & Science of Freeze Drying...
At Preserve
Your Flowers we have perfected a freeze drying process that
is a combination of both science and art. Your flowers are
carefully hydrated and then pre-treated using a variety
of pre-treating solutions. These solutions shatterproof
the flowers, help set natural color, add durability, and
open cell structure. By opening the flowers cellular structure
we are able to remove water more efficiently. We then place
the flowers in our Custom Built Floral Freeze Dryers and
the flowers are solidly frozen at -25º F.
We then
place the floral chambers under a near perfect vacuum. In
this deep vacuum the ice crystals in the flowers “sublimate”
directly to water vapor. It takes a period of 10-12 days
to complete the process. During the drying cycle we raise
the temperature of the flowers to +70ºF. At this time
all the water in the flowers changes to water vapor and
migrates out of the plant tissue leaving “Perfectly
Preserved Flowers”.
After
the freeze drying process the flowers are carefully prepared
for color enhancement (if needed). Each flower is post-treated
with a clear polymer sealant which protects the flowers
from moisture and UV light.
