FAQ
General
Find all the answers to general questions, our products and our freeze-drying expertise here.
What is freeze-drying?
This is a drying which consists of freezing a product, then removing the water by sublimation (the water in the product changes from solid to gas without being sublimated). transit by the liquid state). This preserves the organoleptic qualities (taste, smell, colour) and nutritional value of the product. food.
Why choose freeze-drying rather than frozen or canned food?
- Frozen: preserves well, but requires a cold chain and sometimes alters the texture when defrosted.
- Canned: practical and long-lasting, but cooked at high temperatures and possible loss of nutrients.
- Freeze-dried: long shelf life at room temperature, no additives, no loss of taste or nutrients.
How long does a freeze-dried product keep?
From 1 to 25 years, depending on the product and packaging, at room temperature, with no loss of quality.
Technical
Your technical questions about our freeze-dryers and their use.
Do the products lose their vitamins or proteins?
No, freeze-drying preserves 95 to 98 % of nutrients.
Does a freeze-dryer consume a lot of energy?
Consumption depends on the model and freeze-drying time.
Do I need a special electrical installation?
- For small format freeze-dryers, a dedicated power line is required. The machines operate on 220V 50Hz, with different amperages depending on the model. It is strongly recommended to have a reinforced socket (similar to that used for recharging electric vehicles) to avoid overheating when the machine needs a lot of energy (critical moments when several elements of the machine are activated).
- Large-format freeze-dryers are connected to a dedicated three-phase line. Do not hesitate to contact us for more information about the electrical specifications of these models.
What types of food can be freeze-dried?
Fruit, vegetables, meat, fish, ready meals, aromatic herbs, dairy products... practically everything that contains water.
What types of food cannot be freeze-dried?
High-fat or water-free foods, such as pure oil, chocolate or butter, do not freeze-dry well. Sugar and fat levels slow down and can even prevent freeze-drying.
Usage and Commercial
Answers to your questions about the use of our freeze-dryers and the profiles that can benefit from them.
Do you need any particular expertise to use your machines?
Our freeze-dryers are designed to be easy to use. However, you will need to know a little about freeze-drying in order to use the machines properly.
What is the average freeze-drying time?
Freeze-drying is a delicate process that takes time. A minimum of 24 hours depending on the water, sugar and fat content and the volume.
Who is Lyo Robots for?
Lyo Robots is aimed at all types of profiles:
- Producers
- Restaurateurs
- Food manufacturers
- Cosmetics
- Pharmaceuticals
- Outdoor and survival
- Individuals
- ...
