China cold storage solution provider
When it comes to preserving nuts such as walnuts, cashews, almonds, and hazelnuts, maintaining the right storage temperature and humidity is essential. In normal room conditions, nuts can easily become rancid due to oil oxidation. For this reason, many food manufacturers and trading companies invest in nut cold storage warehouses to keep raw materials fresh and safe before processing or export.
Today, let’s take our recent 3,000㎡ nut cold storage project for Three Squirrels Co., Ltd. in Anhui, China as an example to analyze the total cost, storage capacity, and key design details.
1. Total Investment Cost
The 3,000㎡ nut cold storage has a 5-meter ceiling height, providing a total storage volume of 15,000 cubic meters, capable of storing approximately 2,800 tons of nuts.
The estimated total construction cost ranges between USD $370,000 – $470,000, depending on the project configuration and material selection.
| Project Parameter | Specification | Estimated Cost (USD) |
|---|---|---|
| Cold Room Area | 3,000㎡ | — |
| Height | 5m | — |
| Storage Capacity | ≈2,800 tons of nuts | — |
| Temperature Range | 0°C ~ +10°C | — |
| Total Project Cost | — | $370,000 – $470,000 |
| Average Cost | — | $120 – $155 per ㎡ |
Note: Prices vary depending on insulation thickness, compressor brand, control system, and construction location.
2. Cold Storage Design & Temperature Control
Nuts such as cashews, walnuts, macadamias, and almonds require storage in a dry, low-temperature environment to prevent rancidity and mold growth.
- Recommended temperature: 0°C to +10°C
- Relative humidity: 60%–70%
- Cooling system: Bitzer or Emerson scroll compressor (one for use, one standby)
- Panel insulation: 100mm PU sandwich panels (fireproof B1 grade)
The system features automatic temperature control, remote monitoring, and SMS alarm functions — ensuring precise storage conditions 24/7.
3. Construction Details
The cold storage is divided into multiple temperature-controlled zones, including:
- 2 cold storage rooms (0°C–10°C) for nuts and raw materials
- 1 packaging area (10°C–15°C) for order handling
- 1 buffer room to reduce temperature fluctuation during loading and unloading
Each zone is designed for energy efficiency and long-term operation stability, compliant with ISO and CE standards.
4. Storage Capacity & Energy Efficiency
A 3,000㎡ nut cold room can store:
- 2,800 tons of raw nuts
- Suitable for exporters, distributors, and snack manufacturers
With optimized insulation and inverter compressors, average daily electricity consumption is around 350–420 kWh/day, reducing operational costs by 10–15% compared to standard systems.
For more details on similar projects, check out our Nut Cold Storage Engineering Case to see real-world examples of large-scale nut warehouse construction and performance data.
5. Construction Timeline
| Stage | Duration |
|---|---|
| Design & quotation | 8 days |
| Material production | 20–25 days |
| On-site installation | 50–60 days |
| Commissioning & testing | 10–15 days |
| Total project time | 90–100 days |
From design to operation, the entire 3,000㎡ nut cold storage project was completed in just over Three months.