Summer Warehousing in China: Cooling and Protecting Imported Cargo in Extreme Heat

Warehouse photo

Summer is the stress-test season for China's warehousing and logistics. For foreign brands, cargo arriving at Chinese ports in July and August faces a real risk: if storage temperature control fails, chocolate melts, fragrances evaporate, batteries swell, and cartons turn brittle — an entire container's value can evaporate within weeks.

1. International Client Scenario: Temperature Control at Every Stage

Containers sit exposed in the port yard after arrival, with interior temperatures reaching 50°C or more
Recommended: clear customs quickly, take delivery of the container, and move cargo into climate-controlled warehousing within 72 hours
With faster summer distribution cycles, transit warehousing should be chosen for its cooling infrastructure

The most common foreign-brand mistake: saving short-term storage costs with an ordinary ambient warehouse — then losing an entire shipment of chocolate or skincare products to a single heat wave, far exceeding any savings.

2. Measured High-Temperature Data

At 35°C outside, the roof of a metal-clad warehouse exceeds 60°C; at 38°C outside, roofs can reach 70°C+
Warehouse floor temperatures exceed 45°C; top-rack cargo temperatures exceed 50°C
Consequences of heat: shortened food shelf life (a 12-month product may spoil in 3 months of summer), rancid oils, evaporated fragrances, swollen batteries, brittle cartons

3. Cooling Methods and Their Real Effects

| Method | Cost | Effect | |------|------|------| | Natural ventilation (open doors at dawn/dusk + roof ventilators) | Near zero | 3-5°C drop inside | | 7-meter industrial ceiling fans | Tens of thousands of RMB each | 5-8°C felt drop; ~1 kWh per hour | | Evaporative coolers (packing/sorting areas) | Thousands of RMB each | Output air 5-10°C below outdoor; ~80% less power than AC | | Air conditioning (climate zones / high-value cargo) | Higher | Precise control below 25°C | | Heat-reflective roof paint + roof sprinklers | A few RMB per sqm | 10-15°C roof drop; 3-5°C inside | | Keep heat-sensitive cargo off top racks | Zero | 5-10°C cargo temperature drop |

4. Storing Heat-Sensitive Cargo

Keep heat-sensitive goods on middle and lower racks — never the top level, near windows, or against sun-exposed west walls
Moderate stack heights so heat can dissipate; patrol the warehouse at least twice daily
Self-ignition-prone materials (coal, charcoal, sulfur, chemicals): small stacks, regular turning to release heat, immediate action if internal temperature exceeds 60°C
Enforce FIFO; ship near-expiry items first in summer

5. Worker Heat Safety

Stagger shifts to avoid the 11:00-15:00 heat window
Stock heatstroke supplies: herbal cooling medicine, mung bean soup, salted drinks, cooling balms
Install evaporative coolers in work zones; never schedule lone long-duration work
Fire and electrical safety: inspect wiring for shorts in high heat; keep gas cylinders and chemicals out of direct sun

6. Why Choose Rundong

Rundong operates 50,000+ sqm of warehousing in Shanghai's Jiading District and Guangzhou with complete summer measures: heat-reflective roof paint (roof temperatures down 10°C+), full-coverage industrial fans, evaporative coolers in work zones, twice-daily patrols with temperature monitoring, stocked heatstroke supplies, and staggered-shift management — keeping both imported cargo and workers safe through the summer.

Rundong Supply Chain serves 200+ corporate clients, including international brands such as 3M, BASF, CNAF, Rettenmaier, Miwon, bulthaup, SUB-ZERO, Sanyuan Dairy, and Roquette. We provide one-stop services for international clients: transit warehousing, temporary storage, customs clearance, and domestic logistics across China. Contact: +86-21-5918-5706 / shrdwl010@shrdwl.cn