Freeze-Dried Pears Case Study
This freeze-dried pears case study shows how a food processor in Oregon used an SDG3000 100㎡ freeze dryer to process approximately 1,200 kg of pear slices per batch and complete drying in 12 hours.
Quick Facts
This pear project used real production data instead of general marketing claims. The data helps fruit processors evaluate batch capacity, slice thickness, drying time, vacuum range, cold trap capacity, final moisture, electricity consumption, steam consumption, and operating cost.
| Location | Oregon, USA |
|---|---|
| Year | 2018 |
| Product | Freeze-dried pears |
| Product Type | Pear slices |
| Equipment | SDG3000 freeze dryer |
| Drying Area | 100㎡ |
| Loading Density | 12 kg/㎡ |
| Batch Loading | Approx. 1,200 kg/batch |
| Time to Dry | 12 hours |
| Final Moisture Content | 2.21% |
| Vacuum Range | 26–100 Pa |
| Condenser Capacity | 2 kg water/㎡/hour |
| Total Condenser Capacity | Approx. 200 kg water/hour |
| Electricity Consumption | 1.1 kWh/kg raw material |
| Steam Consumption | 1.5 kg steam/kg raw material |
| Estimated Batch Electricity Use | Approx. 1,320 kWh |
| Estimated Batch Steam Use | Approx. 1,800 kg steam |
Commercial Freeze-Dried Pear Slice Production
In 2018, a food processing customer in Oregon, USA used an SDG3000 100㎡ commercial freeze dryer to produce freeze-dried pear slices for commercial fruit processing.
Pear slices require careful drying control because slice thickness, loading density, sugar content, vacuum stability, and heating control can affect final texture and moisture consistency.
For this project, pear slices were loaded at 12 kg per square meter. With a total drying area of 100㎡, the batch loading capacity reached approximately 1,200 kg per batch.
The drying cycle was completed in approximately 12 hours, and the final moisture content reached 2.21%. The project used approximately 1.1 kWh electricity and 1.5 kg steam per kg of raw material.
This calculation helps buyers understand real production capacity. Drying area alone is not enough; loading density, slice thickness, drying time, electricity use per kg raw material, and steam consumption per kg raw material must be evaluated together.
The Challenge: Balancing Pear Slice Quality, Drying Time, and Production Efficiency
Pear slice thickness affects drying speed, product appearance, cutting yield, crispness, and production efficiency. The process needed to balance product quality and equipment utilization.
Slice Thickness
Thinner slices can dry faster, but they may reduce single-batch output and cutting yield.
Large Batch Load
The system processed approximately 1,200 kg of fresh pear slices per batch.
Low Final Moisture
The final moisture content reached 2.21%, supporting storage stability and packaging.
Vacuum Stability
The drying process operated within a 26–100 Pa vacuum range.
Cold Trap Capacity
The total condenser capacity was designed at approximately 200 kg water/hour.
Energy and Steam Control
The project used 1.1 kWh electricity and 1.5 kg steam per kg of raw material.
Pear Slice Thickness Test: Balancing Drying Speed and Practical Output
For pear slice freeze-drying, slice thickness should be selected by balancing drying speed, product quality, cutting yield, and equipment utilization.
In theory, thinner pear slices are more favorable for freeze-drying. Moisture can escape more easily, and the drying time can be shortened.
However, if slices are too thin, the batch output may decrease. In actual production, the process must also consider cutting yield, material handling, product appearance, and equipment utilization.
During testing, pear slices with different thicknesses were compared. Although thicker slices can increase production efficiency in some conditions, product quality and practical cutting yield also need to be considered.
This process experience helped the customer evaluate a more practical pear slice drying method instead of judging the freeze dryer only by drying area or machine model.
SDG3000 100㎡ Freeze Dryer
The SDG3000 freeze dryer was selected to support large-scale pear slice production with stable vacuum control, strong water vapor capture capacity, steam-assisted heating, and predictable batch performance.
- 100㎡ drying area for large-scale fruit processing
- Pear slices processed for commercial fruit applications
- 12 kg/㎡ loading density and approx. 1,200 kg per batch
- 26–100 Pa vacuum range during drying
- 2 kg water/㎡/hour condenser capture capacity
- 12-hour drying cycle with 2.21% final moisture
- 1.1 kWh electricity and 1.5 kg steam per kg raw material
Real Drying Data for Freeze-Dried Pear Slices
This section gives buyers practical reference data. It shows how loading density, vacuum control, cold trap capacity, final moisture, electricity use per kg raw material, and steam consumption per kg raw material affect actual production performance.
In this project, the SDG3000 processed about 1,200 kg of pear slices per batch. The drying cycle was completed in 12 hours, and the final moisture content reached 2.21%.
| Product | Pear slices |
|---|---|
| Fresh Material Loading | 12 kg/㎡ |
| Total Batch Load | Approx. 1,200 kg/batch |
| Vacuum Range | 26–100 Pa |
| Condenser Capacity | 2 kg water/㎡/hour |
| Total Condenser Capacity | Approx. 200 kg water/hour |
| Final Moisture | 2.21% |
| Electricity Consumption | 1.1 kWh/kg raw material |
| Steam Consumption | 1.5 kg steam/kg raw material |
| Drying Time | 12 hours |
Production Result: 12-Hour Drying Cycle
The SDG3000 100㎡ freeze dryer completed the pear slice drying process in approximately 12 hours. The final moisture content reached 2.21%.
Why These Data Points Matter
For fruit processors, real production data is more useful than general machine descriptions. These parameters help estimate output, freeze dryer cost, and equipment suitability.
1. Loading Density
The customer loaded pear slices at 12 kg/㎡. For a 100㎡ freeze dryer, this means approximately 1,200 kg per batch. This gives buyers a clearer way to estimate production capacity.
2. Condenser Capacity
The total condenser capacity was approximately 200 kg water/hour. For a 100㎡ freeze dryer, cold trap capacity affects vacuum stability, drying speed, and batch repeatability.
3. Electricity and Steam
The process used approximately 1.1 kWh electricity and 1.5 kg steam per kg of raw material. Based on 1,200 kg per batch, the estimated electricity use was about 1,320 kWh per batch, and the estimated steam use was about 1,800 kg per batch.
What Fruit Processors Can Learn from This Case
This Oregon freeze-dried pear project shows that large fruit freeze-drying equipment should be evaluated by real drying performance, slice preparation, final moisture, electricity consumption, steam consumption, and total operating cost.
Slice Thickness Matters
For pear slices, thickness affects drying speed, cutting yield, product quality, and equipment utilization.
Ask for Real Drying Data
Batch load, final moisture, vacuum range, condenser capacity, electricity use per kg raw material, and steam use per kg raw material provide more value than general supplier claims.
Check Cold Trap Capacity
Large freeze dryers must have enough condenser capacity to handle water vapor load and maintain stable vacuum during drying.
Compare Electricity and Steam
For large food freeze dryers, steam-assisted heating can be important for estimating operating cost and production planning.
Continue Reading
These internal links guide visitors from the case study to product selection, cost analysis, larger equipment comparison, and manufacturer evaluation.
Planning to Produce Freeze-Dried Pear Slices?
Please describe your requirements in as much detail as possible. Our team can help you estimate the right freeze dryer configuration and provide the following materials: