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Best Practice Guidelines: Fuji (2023)

Keywords: starch conversion, pressure, chlorine drench, 1-MCP treatment, RA storage, CA storage, step-down cooling, CO₂ monitoring

Variety Selection

  • Aztec
  • Fuji Royal
  • Shortie
  • Fuji Brak
  • Kiku

Harvest Maturity

  • Starch conversion: 30–40%
    (Up to 60% for short-term RA storage, max 2 months)
  • Pressure: Optimum 7.5 kg
  • Pip colour: Full brown

Bin Type

  • Plastic bins preferred for long-term storage

Post-Harvest Drench

  • Drench with chlorine
  • Drench with Fludioxonil or Pyrimethanil (Fludioxonil preferred)
  • Rotate Fludioxonil and Pyrimethanil annually

Decay Control

  • Chlorine sanitation of bins
  • Chlorine drench of fruit: 75–100 ppm
  • Chlorine drench in presort and packhouse flumes
  • Drench with Pyrimethanil or Fludioxonil
  • Sanitation of cold storage rooms
  • Handle fruit carefully to prevent injuries
  • Maintain cold chain management

Intake

  • Do maturity indexing to determine storage regime (RA/CA) and storage period
  • Rank rooms by storage period (short, medium, long term)
  • Flag young orchards (not for long-term storage)

Inspection

  • Additional inspections required for most EU, FE, and UK supermarkets (higher quality than export minimum)
  • Special markets (e.g., Taiwan) may have specific requirements

Cooling Protocol

  • No forced cooling advised
  • Re-cool with delivery temperature not lower than 0°C
  • Fruit temperature should never be below 0°C; store at 0°–1°C
  • First 48 hours: fruit is very sensitive to temperature stress

Step-Down Cooling

  • First week: 5°C
  • Remainder of storage: 1°C

RA Storage

  • Fruit temperature should never be below 0°C
  • Store at 0.5°–1°C

CA Storage

  • Set store delivery temperature at 5°C
  • Keep doors open during room filling
  • Treat with 1-MCP within protocol (7 days after harvest)
  • After 7 days, set delivery temperature at 0°C
  • Use lime if scrubbers can’t keep CO₂ under 1% (preferably under 0.7%)—especially first 10 days of CA
  • Monitor CO₂ levels from the start
  • O₂ levels: 1.5% (lower levels may be an option)

DCA

  • Not advisable—Fuji are prone to watercore

Presorting

  • Fuji are prone to injuries from stem punctures
  • Use chlorine in flumes

Packaging

  • Use perforated bags or fold bags open at the top to prevent CO₂ build-up in cartons

Shipping

  • Vents: Open 15%
  • Temperature: 0°C
Hortgro Postharvest All White

Contact us

Tel: +27 (0)21 870 2900
Email: info@hortgro.co.za

258 Main Rd, Paarl, 7646
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