How to Store Star Fruit (Carambola)? Cold Storage Method, Cost & Capacity Guide

Cost & Capacity Overview

Star fruit (carambola) is highly perishable, so cold storage is essential for commercial distribution.

Typical project range:

• Estimated Cost (300–500 m²): $50,000 – $90,000
• Storage Capacity: ~240–625 metric tons (based on 4–5 m³ per ton for fruit)
• Recommended Temperature: 41–43°F (5–6°C)
• Humidity: 85% – 90% RH
• Storage Time: Up to 2–3 months

👉 Suitable for tropical fruit exporters, wholesalers, and distribution centers in Southeast Asia, Africa, and Latin America.

Why Star Fruit Needs Cold Storage

Star fruit has:

• High respiration rate
• High moisture content
• Sensitivity to temperature changes

👉 Without proper storage:

• Rapid water loss
• Skin browning and softening
• Short shelf life

👉 With cold storage:

• Slows respiration and ripening
• Reduces spoilage
• Maintains color, texture, and market value

Commercial Cold Storage Method

Harvesting

• Harvest in dry conditions (morning, no dew)
• Avoid high temperature or rainy weather
• Use manual picking to prevent damage

Sorting & Grading

• Sort by size and maturity
• Remove damaged or diseased fruit

Pre-Cooling (Critical Step)

• Use forced-air cooling before storage
• Faster cooling = better preservation
• Recommended pre-cooling time: within 48 hours

Storage Conditions

• Temperature: 41–43°F (5–6°C)
• Avoid below 41°F (5°C) → chilling injury
• Humidity: 85–90%

👉 Under these conditions:

• Storage life reaches 2–3 months
• Maintains fresh appearance and firmness

How Much Can You Store?

Using standard fruit storage density:

• 4–5 m³ per ton

Typical examples:

• 300 m² cold storage:
  → ~240–375 tons
• 500 m² cold storage:
  → ~400–625 tons

👉 Suitable for export-oriented fruit supply chains.

Where Your Investment Goes

A star fruit cold storage project includes:

Refrigeration System

• Compressors
• Condensing units
• Air coolers
• Temperature control systems

Insulated Structure

• PU insulation panels
• Cold room doors
• Moisture-proof sealing

Electrical & Installation

• Power systems
• Control panels
• Installation and commissioning

Investment Example (Overseas Project)

Project Overview

• Location: Bangkok, Thailand
• Facility Size: 400 m²
• Storage Type: Star fruit cold storage (5–6°C)
• Total Investment: $72,000
• Capacity: ~500 tons

Business Value

• Extends shelf life from days to months
• Reduces post-harvest losses
• Supports long-distance export
• Improves pricing flexibility

Payback Period

• 1–2 years, depending on turnover

Get a Customized Cold Storage Solution

Star fruit storage requires precise temperature and humidity control, not just basic refrigeration.

Each project is custom-designed based on your product and market.

To get an accurate quotation, send us:

• Required storage capacity (tons)
• Daily handling volume
• Project location

👉 We’ll provide a custom cold storage solution and cost estimate within 24 hours.