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Specialized Industrial B2B Cold Storage Solutions

Turnkey High-Tech Cold Storage for Fresh Produce & Vegetables

High-performance preservation for leafy greens, root vegetables, and fresh mushrooms for agricultural cooperatives and supermarket distribution networks. Saturated humidity (90% to 95% RH) halts transpiration, reducing natural weight shrinkage to under 1% after 30 days.

Fresh vegetable cold storage is an advanced multi-parameter microclimate system (+2°C to +12°C, 85% to 95% RH) utilizing gentle laminar airflow and cyclic ethylene purge. The solution minimizes natural moisture loss, prevents edge discoloration, and meets export VietGAP and GlobalGAP certification.
Request Budget & Quotation Engineering Hotline: 0933 357 058
+1°C ÷ +10°C
Fresh Vegetable Chilling Range
Relative Humidity 95% RH
Keeps Leafy Greens Crisp & Vibrant
Gentle Indirect Cooling
Soft Breeze Prevents Leaf Edge Dehydration
VietGAP & GlobalGAP Standards
Antibacterial & Mold Resistant

Technical Engineering Overview: Fresh Produce & Vegetable Cold Storage Solutions

Each vegetable and root crop variety has distinct physiological respiration rates, transpiration sensitivities, and chilling thresholds. Tan Long custom-engineers refrigeration rooms for each commodity, strictly regulating temperature, gentle air circulation, and humidity to guarantee produce meets strict market inspection criteria.

1. Optimum Temperature & Humidity Standards for Fresh Vegetables and Herbs

Below is a comprehensive technical matrix detailing target storage temperatures, preservation methodologies, shelf lives, and packaging requirements:8rem 0;">

Product Form / Cut Refrigeration Method Storage Room Temperature Commercial Shelf Life Core Technical Protocol
Leafy Greens (Lettuce, Cabbage, Bok Choy) Vacuum cooling or hydro-cooling pre-chill +1°C ÷ +3°C 20 - 30 Days 95-98% RH, dual-discharge ceiling unit coolers preventing leaf bruising
Carrots, Radishes & Beetroots Soil wash, trimmed foliage, ventilated crates 0°C ÷ +2°C 3 - 5 Months Slotted plastic crates with vertical aeration gaps, 95% RH continuous
Potatoes (Table Stock & Processing Chips) Suberization / skin curing at +15°C before pull-down +7°C ÷ +10°C 6 - 8 Months Hold strictly above +5°C to avoid reducing sugar accumulation and fry darkening
Fresh Mushrooms (Enoki, Oyster, Straw) Micro-perforated breathable tray wrap +1°C ÷ +3°C 15 - 20 Days Eliminate ceiling condensation dripping directly onto mushroom caps
Export Fresh Bell Peppers & Tomatoes Ambient curing & gentle air-dry +8°C ÷ +10°C 30 - 45 Days 85-90% RH, continuous air filtration preventing anthracnose mold

2. Gentle Airflow Dual-Discharge Evaporators & Ultrasonic Humidification Systems

Fresh vegetables possess high moisture content (85% to 95%) and large surface areas, making them vulnerable to moisture loss, wilting, and bacterial decay. Tan Long deploys integrated engineering systems:

3. Turnkey Budget Guidelines for Fresh Vegetable Cold Storage (2026 Price Index)

Reference turnkey EPC price estimate guidelines for fully commissioned cold storage systems (including machinery skids, panels, doors, piping, electrical, and validation):8rem 0;">

Storage Scale / Capacity Dimensions L x W x H (m) Compressor Power Design Temperature Turnkey Budget (VND / USD Approx.)
10 - 15 Tons Vegetables 6.0 x 4.0 x 3.0 (72 m³) 4.0 - 5.0 HP +2°C ÷ +8°C 130.000.000 - 165.000.000
30 - 50 Tons Vegetables 10.0 x 6.0 x 3.5 (210 m³) 10 - 12 HP +1°C ÷ +5°C 260.000.000 - 340.000.000
100 - 150 Tons Vegetables 16.0 x 10.0 x 4.0 (640 m³) 20 - 25 HP +1°C ÷ +5°C 520.000.000 - 680.000.000
> 300 Tons (Regional Agricultural Co-op) Independent zones per crop group Parallel VFD rack compressor station Independent multi-zone control Custom Survey & Engineering

* Turnkey estimate includes: Compressor condensing unit, PU/PIR insulated panels, cold doors, automated PLC switchboard, piping, fittings, installation labor, and commissioning. Excluding VAT.

4. Six-Step EPC Turnkey Construction Workflow for Vegetable Cold Storage Facilities

  1. Crop Variety Survey & Respiration Heat Modeling: Calculating biological heat output between leafy greens (lettuce, cabbage) and root crops (potatoes, carrots) to size refrigeration accurately.
  2. Multi-Zone Thermal Layout Engineering: Designing separate chambers: leafy greens (+2°C to +5°C), sub-tropical roots (+10°C to +13°C) preventing chilling injury.
  3. Danfoss/Bitzer High-Evaporating Compressor Packaging: Optimizing compressor displacement for medium-temperature refrigeration, reducing power draw during peak harvest intakes.
  4. PIR Envelope Assembly & Ultrasonic Mist Piping: Assembling airtight panels and integrating RO-filtered water lines supplying high-frequency ultrasonic misting heads.
  5. Airflow Balancing & 72-Hour Climate Commissioning: 72-hour full load test with multi-channel data loggers ensuring thermal uniformity within ±0.5°C in all chamber corners.
  6. VietGAP Preservation Training & System Handover: Handing over crate stacking guidelines for optimal airflow and scheduling complimentary bi-annual preventive maintenance visits.

5. Frequently Asked Questions on Humidity & Ethylene Management (FAQs)

Q: What is the typical turnkey construction timeline for a vegetable cold storage facility?

For small to medium facilities (under 50 tons), prefabrication and installation take 15 to 20 business days. For industrial multi-room facilities (100 to 1,000+ tons), total EPC execution typically spans 30 to 45 days including pressure testing and continuous temperature pull-down commissioning. For regional agricultural hubs exceeding 200 tons, installation timelines span 20 to 35 business days depending on civil site readiness.

Q: Does Tan Long provide thermal mapping validation and licensing compliance documentation?

Yes. Tan Long engineers supply complete technical dossiers and multi-point temperature mapping calibration reports certified to Quatest/NIST standards, assisting clients in seamlessly securing HACCP, ISO 22000, and VietGAP/GlobalGAP certifications.

Q: In the event of a power outage or compressor fault, is stored product protected?

Thanks to high-pressure molded PIR panels (125mm to 150mm) with superior thermal resistance, storage chamber temperature rises by less than 1°C per 12 hours during total power outages, providing ample buffer time before backup generator power engages. Simultaneously, the SCADA telemetry system instantly transmits emergency alarm notices to the facility manager and Tan Long’s 24/7 on-call engineering dispatch team.

KEY AGRICULTURAL & PRODUCE COLD STORAGE PROJECTS

Advanced 90-95% relative humidity control preventing produce moisture loss:

Meito Tan Duc Cold Chain Logistics Facility

Multi-temperature facility (+2°C to -25°C) certified to Japanese standards

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NECS Automated High-Bay Cold Logistics Hub

30,000 pallet positions with automated robotic ASRS storage

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Classic Gourmet Food Cold Storage Center

HACCP-compliant raw material and fresh produce preservation

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Central Retail GO! An Lac Hypermarket Distribution

International supermarket cold supply chain standards

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• Calculate Produce Cold Storage Heat Load • Cold Chain Equipment Price List 2026 • Request Free Turnkey Consultation

TECHNICAL EXPERT VERIFICATION

Updated: September 2026 • TCVN 9994:2013 & Controlled Atmosphere CA / VietGAP Standards
Eng. Nguyen Van Long - EPC Technical Director
EXPERT AUTHOR

Eng. Nguyen Van Long

EPC Technical Director & Head of Refrigeration Solutions, Tan Long

20+ years EPC experience in industrial cold storage systems, IQF quick freezers, and automated ASRS facilities. Thermal Engineering alumnus from HCMC University of Technology, VISRAE Executive Board member.

M.Sc. Tran Dinh Hung - Pressure Safety Lead, Tan Long
TECHNICAL VERIFICATION

M.Sc. Tran Dinh Hung

Pressure Vessel Safety Verification & Energy Auditing Lead

15+ years leading NH3 piping pressure safety proofing, COP energy audits, and fire protection certification for PIR/PU panel enclosures under QCVN 06:2022/BXD.

TCVN 6739:2015 ASME Boiler & Pressure Vessel ASHRAE 15 & 34 QCVN 06:2022/BXD
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