What to know and how to package freeze dried foods.
Perfectly preserved.
Freeze-dried candy, freeze-dried strawberries, freeze-dried pet food… even freeze-dried meats are on the rise! (Which is great for long term storage of proteins if you’re waiting for the next apocalypse.) These freeze-dried delicacies are becoming a lot more popular for their long shelf life and preservation of nutrients and flavor. If you’re looking to get into freeze drying and you were wondering, “How do I package freeze-dried food?” this one is for you
What is freeze-drying?
Freeze-drying, also known as lyophilization, is a process that removes moisture from food. First, freeze it. Then, the pressure is lowered so that the frozen water in the food turns directly into vapor without melting. This method keeps the food’s shape, taste, and nutrients intact, making it a great choice for long-term storage.
Proper packaging matters.
Packaging plays a crucial role in preserving the quality of freeze-dried foods. Since these products are highly sensitive to moisture, oxygen, and light, the packaging needs to provide a strong barrier against these elements. Without proper packaging, freeze-dried foods can easily absorb moisture from the air, leading to spoilage and loss of quality.
Best packaging options for freeze-dried foods.
1. Vacuum-sealed bags
These are ideal for removing excess air, providing a tight seal that keeps moisture and oxygen at bay. High-barrier vacuum bags are particularly effective in preserving the product’s quality over time but be careful with products that can be easily crushed in the process. Having a vacuum sealer with an adjustable vacuum can help prevent product damage.
2. Metallized bags with oxygen absorbers
Metallized bags (Mylar is the commonly known brand name) are a popular choice for freeze-dried foods because of their excellent barrier properties against light, moisture, and oxygen. Pairing them with oxygen absorbers further extends shelf life.
3. Stand-up pouches with resealable zippers
For consumer convenience for snack foods or multiple portions, stand-up pouches with zippers are common. They provide a good barrier, and consumers can easily store and reseal them. Don’t forget those desiccants!
4. Glass Jars with Desiccants
Glass jars can provide a sturdy, airtight seal and with desiccants that offer protection against moisture.
Key considerations for food producers.
Labeling:
Clearly label freeze-dried foods with storage instructions and shelf life to ensure consumers understand how to best store the product.
Portion control
Packaging in single or small-portion sizes can help maintain product quality after opening, since smaller packages are exposed to less air.
Wrapping up
Proper packaging is critical in maintaining the quality and shelf life of freeze-dried foods. By choosing the right materials and packaging designs, food producers can ensure their products remain fresh and appealing to consumers.
Explore FoodPak’s range of freeze-dried food packaging solutions to find the perfect fit for your product!
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