Our Process

The Science Behind Freeze-Drying Flowers

Freeze-drying (Lyophilization) is the process of gently removing water from flowers while they remain completely frozen. Under deep vacuum, ice crystals inside the petals change directly from solid to vapor (sublimation), preventing shrinkage and preserving the flower’s natural shape and detail.

During this process, the water vapor is captured in a condenser at extremely low temperatures (–40°F or colder), where it re-freezes as ice. Once no new ice forms, the flowers are considered fully dry. The only long-term care needed is keeping them protected from moisture so they stay beautifully preserved for years.

A Perfect Balance of Science & Art

When floral freeze-drying first began in the late 1980s, results were fragile and colors often faded. Today, with improved chemistry and specialized pre- and post-treatments, freeze-dried flowers retain their color, durability, and longevity like never before.

Because floral preservation is an art as much as a science, we require your flowers within 2–3 days of the event for the best possible results. While most flowers freeze-dry beautifully, some varieties can be more challenging. If a flower cannot meet our high preservation standards, we will let you know right away.