WeChat Official Account_Food Rapid Cooling Cabinet Selection Guide_20260806
Depending on the food type and inlet temperature, generally 1–2 hours. For scenarios with an inlet temperature of 60–90℃ and an outlet temperature of 3–10℃.
WeChat Official Account_Food Blast Chiller Selection Guide_20260806
Topic: Complete Trade Product Article — Full-Series Comparison of Food Blast Chiller (Blast Chiller) Categories Date: 2026-08-06 (Thursday) Data source: Equipment nameplate parameters (OCR recognition), Vacuum-Fresh Machinery product materials
[Chinese Version]
Title: How to Choose a Food Blast Chiller? -45°C and -80°C Two Tiers, Full Parameter Comparison
Summary
Central kitchens and bakery workshops need to cool hundreds of kilograms of cooked food every day. How should cabinet-type blast chilling equipment be selected? This article lays out the parameters of the dual-cabinet blast chiller (-45°C tier) and the -80°C blast freezer item by item, compares the applicable boundaries of traditional cold rooms and vacuum coolers, and helps you select by output and temperature requirements.
Keywords
Food blast chiller, blast freezer, Blast Chiller, cooked food cooling, central kitchen cooling equipment, rapid cooling, Vacuum-Fresh Machinery
1. Problem Introduction: The Cooling Stage Is Bottlenecking the Production Line
Braised food comes out of the pot at 90°C and must be cooled below 10°C before packaging. If you wait for natural cooling, a batch takes up space, and in summer after two hours the bacterial count rises. Many food factories leave the cooling step to the cold room, but every time the cold room door opens and closes, the room temperature fluctuates and energy consumption cannot be kept down. To decide which equipment to use for the cooling stage, first look at two numbers: how many kilograms per batch, and what temperature it must be cooled to.
2. What Is a Blast Chiller?
A blast chiller (Blast Chiller) is a forced cold-air cooling device with a refrigeration system, and it has no vacuum system. Its working principle is not complicated: the compressor drives the refrigeration cycle, the evaporator drops to -40°C, and fans force cold air onto the food surface, removing heat through convective heat exchange. After cooked food, baked goods, or meat comes out of the oven or pot, it is placed in the cabinet and cooled to the target temperature in 1–2 hours. Vacuum-Fresh’s currently available blast chiller is the dual-cabinet -45°C blast freezer (30-tray trolley type), equipped with a Tecumseh (France) compressor. Single-cabinet internal dimensions are 580×720×1430 mm, total volume of the two cabinets is 1.194 m³, and the inner liner is 304 stainless steel. The nameplate-measured parameters are shown in the table below.
3. Full-Series Parameter Comparison Table
3.1 Measured Parameters of Dual-Cabinet Blast Chiller (-45°C Tier)
| Item | Parameter |
|---|---|
| Model | BRS -45°C Blast Freezer (30-tray trolley type) |
| Single-cabinet internal dimensions (W×D×H) | 580 × 720 × 1430 mm |
| Single-cabinet volume | 0.597 m³ |
| Total volume of two cabinets | 1.194 m³ |
| Overall external dimensions | 1900 × 940 × 2150 mm |
| Minimum cabinet internal temperature | -45°C |
| Evaporating temperature | -40°C |
| Compressor | Tecumseh (France), 4.55 kW |
| Condensation method | Air-cooled |
| Inner liner material | 304 stainless steel |
| Number of trays | 30 trays/cabinet × 2 = 60 trays |
| Load per tray | 3–5 kg |
| Dual-cabinet throughput | Approx. 200 kg/batch |
| Cooling time | 1–2 hours |
| Inlet/outlet temperature | 60–90°C → 3–10°C |
| Voltage | 220V / 380V optional |
| Gross weight | 450 kg |
3.2 Series Tier Comparison: -45°C and -80°C
| Item | -45°C Blast Freezer | -80°C Blast Freezer (Reference) |
|---|---|---|
| External dimensions | 1900×940×2150 | 1900×940×2150 |
| Internal dimensions | 580×720×1430 | 580×720×1430 |
| Compressor | Tecumseh (France) | Tecumseh (France) |
| Compressor power | 4.55 kW | 9.05 kW |
| Total power | Approx. 4.55 kW | Approx. 9.05 kW |
| Condensation method | Air-cooled | Air-cooled |
| Internal material | 304 stainless steel | 304 stainless steel |
| Voltage | 220/380V | 380V |
| Gross weight | 450 kg | 500 kg |
| With the same cabinet, switching the compressor from 4.55 kW to 9.05 kW doubles the power and raises the temperature tier from -45°C to -80°C. When selecting, first ask yourself: Does the product really need -80°C? For most cooked food, baked goods, and prepared meals, the cooling endpoint is 3–10°C, so the -45°C tier is sufficient; power is half as much, and electricity costs are naturally lower. |
3.3 Blast Chiller vs Vacuum Cooler vs Traditional Cold Room
| Comparison Item | Blast Chiller | Vacuum Cooler (CVF Series) | Traditional Cold Room |
|---|---|---|---|
| Cooling principle | Forced cold-air convection | Vacuum evaporation self-cooling | Natural convection |
| Vacuum system | No | Yes (vacuum pump + vacuum chamber) | No |
| Evaporating temperature | -40°C | Water catcher -10°C~-5°C | -5°C~-10°C |
| Single-batch cooling time | 1–2 hours | 8–25 minutes | 8–12 hours |
| Single-batch throughput | Approx. 200 kg | 50–1000 kg | Unlimited (slow) |
| Application scenario | Small batch, kitchen level | Medium-to-large batch, production line level | Primarily storage |
| Water loss rate | Low (direct cold-air blowing) | 3–5% (90°C→10°C) | Low but long time |
4. Selection Recommendations- Within 200 kg per batch, kitchen/small processing room: A blast chiller is suitable, plug-and-play, 220V optional, and requires no vacuum system support.
- Over 300 kg per batch, continuous production line: prioritize vacuum coolers; 8–25 minutes per batch, fast turnover. For example, food vacuum coolerCVF Series 50–1000 kg has multiple tiers available.
- Temperature requirement up to -80°C: Confirm whether the process truly requires it; it is generally for fresh-product cryogenic experimental applications, and power costs are doubled.
- Storage only, without pursuing rapid cooling: A cold room itself is sufficient; do not pay for cooling speed.
5. FAQ
Q1: Are a blast chiller and a vacuum cooler the same thing?
No. A blast chiller has only a refrigeration system and forced cold air, with no vacuum system; a vacuum cooler uses a vacuum pump to draw low pressure, causing moisture in the food to evaporate and self-cool. The two differ in cooling principle, equipment composition, and applicable batch size.
Q2: How long does it take for a blast chiller to cool one batch?
Depending on the food type and inlet temperature, generally 1–2 hours. For scenarios with an inlet temperature of 60–90℃ and an outlet temperature of 3–10℃, the dual-cabinet model handles about 200kg/batch. It is much faster than natural cooling in a cold room (8–12 hours), but slower than a vacuum cooler (8–25 minutes).
Q3: Does a dual-cabinet blast chiller have high power requirements?
The total power is about 4.55kW, with 220V/380V selectable. A 2.5 mm² power cord is sufficient, and it can be connected in an ordinary food workshop. The -80℃ option has a power of 9.05kW and requires 380V.
Q4: Can a blast chiller be used as a cold room?
Not recommended. A blast chiller is rapid cooling equipment, not storage equipment. After cooling is complete, the food should be transferred to a refrigerated storage room or packed directly; long-term storage wastes cooling capacity every time the cabinet is opened to load or unload.
Q5: What should be checked when purchasing a blast chiller?
First check the nameplate: compressor brand, evaporation temperature, inner liner material, and voltage system. Yuanxian’s dual-cabinet units use French Tecumseh compressors, 304 stainless steel inner liners, and an evaporation temperature of -40℃. All parameters are written on the nameplate; during inspection, just compare them item by item.
6. Summary
The core of cooling equipment selection comes down to two things: batch size and target temperature. For kitchen-level scenarios within 200kg, the dual-cabinet blast chiller (-45℃ option, 4.55kW) offers good value; for large-volume production-line applications, choose a vacuum cooler for faster turnover; if you truly need -80℃ deep cooling, then go with the 9.05kW option—don’t pay for temperatures you won’t use. If you are unsure, send the kilograms per batch and cooling requirements to the Yuanxian technical team, and they will calculate it according to your actual working conditions. This article was compiled by Yuanxian Machinery. Equipment parameters are subject to the actual nameplate.
[English Version]
Title: How to Choose a Blast Chiller: -45℃ vs -80℃, Full Spec Comparison
Meta Description
Central kitchens and bakeries cool hundreds of kilos of cooked food daily. This guide compares a dual-cabinet blast chiller (-45℃) against a -80℃ freezer, plus vacuum food cooler and cold room boundaries, to help you size correctly.
Keywords
blast chiller, food rapid cooling cabinet, cooked food cooling, central kitchen equipment, -45℃ freezer, Yuanxian Machinery
1. The Bottleneck: Cooling Slows Down the Line
Cooked food leaves the kettle at 90℃ and must drop below 10℃ before packing. Leaving it to cool on racks takes floor space and hours; during summer, bacterial counts climb fast. Many plants push cooling into the cold room, which drives up door-open losses and energy bills. Two numbers decide the equipment: batch size and target temperature.
2. What a Blast Chiller Is
A blast chiller uses a refrigeration system with forced-air circulation — no vacuum system. The compressor drives the cycle, the evaporator drops to -40℃, and fans blow cold air over the food surface, removing heat by convection. Cooked food, bakery, and meat products go in at 60–90℃ and come out at 3–10℃ in 1–2 hours. Yuanxian’s current blast freezer product line: dual-cabinet -45℃ rapid freezer (30-tray trolley type), equipped with a French Tecumseh compressor. Single-cabinet internal dimensions: 580×720×1430 mm; total volume: 1.194 m³; 304 stainless steel inner liner. The nameplate parameters are as follows.
3. Full Series Comparison
3.1 Dual-Cabinet Blast Freezer (-45℃) — Nameplate Data
| Item | Value |
|---|---|
| Model | BRS -45℃ Rapid Freezer (30-tray trolley type) |
| Cabinet internal dimensions (W×D×H) | 580 × 720 × 1430 mm |
| Single-cabinet volume / Total volume | 0.597 m³ / 1.194 m³ |
| External dimensions | 1900 × 940 × 2150 mm |
| Minimum cabinet temperature | -45℃ |
| Evaporation temperature | -40℃ |
| Compressor | Tecumseh (France), 4.55 kW |
| Condenser | Air-cooled |
| Inner liner material | 304 stainless steel |
| Baking trays | 30 trays per cabinet × 2 = 60 trays |
| Load per tray | 3–5 kg |
| Batch capacity (dual-cabinet) | Approx. 200 kg |
| Cooling time | 1–2 hours |
| Inlet / Outlet temperature | 60–90℃ → 3–10℃ |
| Power supply | 220V / 380V optional |
| Gross weight | 450 kg |
3.2 Series Tiers: -45℃ vs -80℃
| Item | -45℃ Freezer | -80℃ Freezer (Reference) |
|---|---|---|
| External dimensions | 1900×940×2150 | 1900×940×2150 |
| Inner liner dimensions | 580×720×1430 | 580×720×1430 |
| Compressor | Tecumseh | Tecumseh |
| Compressor power | 4.55 kW | 9.05 kW |
| Condenser | Air-cooled | Air-cooled |
| Inner liner | 304 SS | 304 SS |
| Power supply | 220/380V | 380V |
| Gross weight | 450 kg | 500 kg |
| With the same cabinet, compressor power doubles from 4.55 kW to 9.05 kW, and the temperature tier rises from -45℃ to -80℃. Ask first: Does your product really need -80℃? Most cooked foods, baked goods, and prepared meals only need to reach 3–10℃—the -45℃ tier is sufficient, and it consumes only half the electricity. |
3.3 Blast Freezer vs Vacuum Food Cooler vs Cold Room| Item | Blast Chiller | Vacuum Food Cooler (CVF) | Cold Room |
|:—–|:——|:——|:——|
| Principle | Forced air convection | Vacuum evaporative cooling | Natural convection |
| Vacuum system | No | Yes (pump + chamber) | No |
| Evaporating temperature | -40℃ | Water catcher -10℃-5℃ | -5℃-10℃ |
| Batch cooling time | 1–2 hours | 8–25 minutes | 8–12 hours |
| Batch capacity | ~200 kg | 50–1000 kg | Large but slow |
| Best for | Small kitchens | Production lines | Storage |
4. Selection Recommendations
- ≤200 kg per batch, kitchen or small workshop: A blast chiller is suitable—plug and play, optional 220V, no vacuum system maintenance.
- ≥300 kg per batch, continuous production: Consider vacuum food cooler (CVF series, 50–1000 kg), which can achieve 8–25 minute turnaround.
- -80℃ requirement: Confirm the process truly requires it; deep-freeze applications double electricity costs.
- Storage only, no rapid cooling needed: A cold room alone is sufficient.
5. Frequently Asked Questions
Q1: Is a blast chiller the same as a vacuum food cooler? No. A blast chiller only has refrigeration plus forced air; a vacuum food cooler draws a vacuum, causing moisture to evaporate and cool the food. Different principles, different components, and different batch capacities. Q2: How long does one batch take? Usually 1–2 hours, depending on the product and incoming temperature. With an incoming temperature of 60–90℃ and a target temperature of 3–10℃, a dual-cabinet unit can handle about 200 kg. Much faster than a cold room (8–12 hours), but slower than a vacuum cooler (8–25 minutes). Q3: What power supply does a dual-cabinet cooler need? Total power is about 4.55 kW, optional 220V/380V, supply cable 2.5 mm². A standard food workshop can connect it. The -80℃ tier consumes 9.05 kW and requires 380V. Q4: Can a blast chiller replace a cold room? Not for storage. It is rapid cooling equipment; after cooling, the product should be moved to a refrigerated storage or packaged. Long-term storage in a blast chiller wastes energy due to door openings. Q5: What should be checked before purchase? Check the nameplate: compressor brand, evaporating temperature, inner liner material, voltage. Yuanxian units use French Tecumseh compressors, 304 stainless steel inner liners, and -40℃ evaporating temperature—all marked on the nameplate and verifiable at delivery.
6. Summary
Two factors determine the choice: batch size and target temperature. For kitchen-scale operations and batches of no more than 200 kg, a 4.55 kW dual-cabinet -45℃ blast freezer is suitable; for production lines with larger batches, a vacuum food cooler can provide faster turnaround; true -80℃ deep-freeze requires the 9.05 kW tier. Send your batch weight and cooling target to the Yuanxian team, and we can calculate according to your actual working conditions. Prepared by Yuanxian Machinery. Equipment specifications are subject to the actual nameplate.