Freeze-drying of food
Drying by freezing at low pressure preserves nutrients, taste, aroma and shape. The product keeps for a long time without preservatives and weighs a fraction of its original weight.
- 200–3,600 kg per cycle
- no preservatives
- own brand sales and service
Freeze-drying (lyophilisation) removes water from food by turning ice directly into vapour. The product is not heated, so it keeps its nutrients, taste, colour and structure and lasts a long time without preservatives. We sell Utily-FD freeze dryers under our own brand in five sizes from 20 to 200 m² of drying area.
Why freeze-dry
Preserves nutrients
Vitamins, minerals and enzymes are preserved because the product is not heated as in conventional drying.
Taste, aroma and shape
The product keeps its original structure, colour, taste and aroma.
Long shelf life
Without water, microorganisms cannot grow and oxidation stops. No preservatives.
Low weight
Removing water cuts weight by up to 90 %. Cheaper transport and storage.
Easy rehydration
Add water and the product quickly returns to its original form.
Wide range of uses
Fruit, vegetables, meat, fish, dairy products, herbs, pet food.
The freeze-drying process
- 1
Freezing
Raw material contains 80–95 % water. It is first deep-frozen so the water turns into ice crystals.
- 2
Primary drying (sublimation)
At very low pressure, ice turns directly into vapour with no liquid phase. Controlled temperature protects the product's structure.
- 3
Secondary drying (desorption)
The remaining bound water is removed down to the required moisture content.
- 4
Packaging
The finished product is packed in airtight packaging that protects it from moisture.
Utily-FD freeze dryers
Size is chosen by the amount of raw material per cycle. Batch weight depends on the product.
| Model | Drying area | Raw material per cycle | Condenser (ice) | Dimensions | Power / consumption | |
|---|---|---|---|---|---|---|
| Utily-FD-20 | 20 m² | 200–300 kg | – | 5.2 × 1.6 × 0.8 m | 58 kW (average 34–40 kWh/h) | Enquire |
| Utily-FD-30 | 30 m² | 300–450 kg | – | 6.9 × 1.6 × 2.8 m | 85 kW (average 51–63 kWh/h) | Enquire |
| Utily-FD-50 | 50 m² | 500–750 kg | 600 kg / 110 kg/h | chamber ⌀ 2.4 × 6.5 m | average 51–72 kWh/h | Enquire |
| Utily-FD-100 | 100 m² | 1,000–1,800 kg | 1,500 kg / 250 kg/h | chamber ⌀ 2.4 × 10.8 m | average 95–133 kWh/h | Enquire |
| Utily-FD-200 | 200 m² | 2,000–3,600 kg | 2,800 kg / 460 kg/h | chamber ⌀ 2.4 × 12.5 m | average 180–263 kWh/h | Enquire |
Power supply 380 V / 50 Hz, steam heating (electric optional), water cooling with recirculation. We prepare the exact configuration, technical offer and brochure on request.
Freeze dryer quote
Tell us what you want to dry and how many kilograms of raw material per day. We will recommend a size and prepare a technical offer.
- We help you choose and prepare a tailored quote
- We arrange a test with your product
- We help with subsidies and financing
Prefer to talk? +420 777 675 869 · [email protected]