Tan Long Factory Standard Technical Specifications Matrix
1. Passing the Microbial Danger Zone (Blast Chilling & Shock Freezing)
Pathogenic bacteria multiply exponentially between +60°C and +10°C. Allowing hot food to cool naturally or using standard holding freezers doubles bacterial counts every 20 minutes.
Tan Long blast freezers plunge hot food from +65°C directly to -18°C in 90 to 180 minutes, arresting microbial activity and preserving vitamins, natural colors, and aromatics.
2. Space-Saving Self-Contained Modular Engineering
Self-contained plug-and-play engineering places condensing units on top or underneath, with heavy-duty casters for effortless maneuvering in commercial kitchens and packhouses. Tray slide spacing adjusts flexibly to fit various pan depths.
3. Versatile Multi-Sector Food Applications
Tan Long batch blast freezers are widely deployed across:
• Central production kitchens, hotels, and restaurant chains preparing cook-chill and pre-portioned menus.
• Artisan bakeries, premium patisseries, gelato producers, and par-baked frozen bread exporters.
• Processors of traditional sausages, charcuterie, and vacuum-sealed seafood portions.
Competitive Advantages & Market Comparison Matrix
Technical comparison between genuine Tan Long refrigeration equipment manufactured at Duc Hoa 1 Industrial Park versus substandard market alternatives:
Tan Long Equipment Advantages
- ✓ Cabinet constructed with 100% SUS304 inside and out, insulated with 100mm high-pressure PU foam
- ✓ High-capacity convection fans plunging chamber temperature within 10 minutes of startup
- ✓ Integrated multi-point core food probes terminating cycles automatically once setpoint is achieved
- ✓ 24-month comprehensive manufacturer warranty with rapid on-site preventive maintenance across Vietnam
Drawbacks of Manual / Used Imported Systems
- ✗ Generic imported commercial freezers use thin painted sheet that rusts and dents within months
- ✗ Weak fans leave uneven temperatures between shelves, freezing top pans while bottom pans remain soft
- ✗ Undersized compressors overheat continuously, consuming excess electricity and failing prematurely
- ✗ Absence of genuine replacement parts resulting in extended kitchen and factory downtime
Frequently Asked Questions (FAQs) by Engineers & Investors
Q1: Can an industrial blast freezer be used for long-term holding storage?
After completing the blast cycle, the controller automatically shifts to holding mode at -18°C. However, to maximize operational efficiency and throughput, products should be moved to dedicated storage rooms to free the unit for subsequent batches.
Q2: Does the blast freezer require single-phase or three-phase power?
Compact 10-tray units (under 150kg/batch) operate on single-phase 220V power. Larger 20 to 40-tray models utilize three-phase 380V/50Hz power to ensure peak compressor performance and stability.
