The distinction between unregulated environmental conditions (ambient) and actively managed temperature environments (controlled). Ambient temperature in South Africa can range from -5°C in winter highlands to 40°C+ in summer regions, making controlled temperature logistics essential for frozen food integrity. Controlled temperature transport maintains specific ranges regardless of external conditions, typically -18°C to -25°C for frozen foods. This differentiation is critical for compliance with food safety regulations and preserving product quality throughout the supply chain.
Related Terms: Temperature-Controlled Transport, Cold Chain Integrity, R638 Compliance