About Stay Fresh Freeze Dry

At Stay Fresh Technology, we are on a mission to redefine food preservation. Based in Los Angeles, California, we specialize in providing high-performance, dependable freeze drying solutions designed for home and small business use. Founded by engineer and U.S. patent holder Dr. Tonghu Jiang, our company was born from a commitment to American innovation, craftsmanship, and the belief that premium food preservation should be both accessible and built to last.

The Stay Fresh Difference

We recognized early on that the market lacked home freeze dryers that could bridge the gap between expensive commercial equipment and unreliable consumer models. We bridged that divide by engineering our own technology, resulting in a proprietary freeze drying algorithm and automation method—awarded U.S. Utility Patent No. 11,287,185 B1.

What sets a Stay Fresh Freeze Dryer apart is our dedication to precision and efficiency. Unlike standard models that estimate drying times based on shelf temperature, our machines feature advanced food temperature probes as a standard. This technology allows the unit to monitor internal food temperatures in real-time, significantly reducing cycle times while ensuring consistent, high-quality results.

Engineered for Excellence

• Precision Technology: Our patented smart algorithm and RTD temperature sensors take the guesswork out of preservation, helping you retain up to 97% of your food's original nutrition, color, and flavor.

• Built to Last: We utilize industrial-grade construction, including stainless steel and aluminum components, solid-state heater relays, and motorized ball valves to prevent oil contamination.

• Versatility: From bulk garden harvests and emergency food storage to small-batch commercial production and freeze-dried candy, our systems are versatile enough to handle herbs, fruits, vegetables, full meals, and more.

• American Innovation: Every Stay Fresh unit is designed, engineered, and tested in our Southern California facility, ensuring that every machine meets our rigorous standards for quality and integrity.

Our Commitment to You

Whether you are a homesteader preserving a seasonal bounty, a prepper building long-term food security, or a small business owner looking for a reliable production tool, Stay Fresh is dedicated to your success. We don’t just sell a machine; we provide an all-in-one preservation ecosystem that includes commercial-grade vacuum pumps and essential starter accessories, allowing you to begin your journey immediately.

We are proud to stand behind our products with a commitment to durability and user-serviceable design. Join the community of gardeners, preppers, and families who trust Stay Fresh to keep their food nutrient-dense, shelf-stable, and ready for years to come.