In this episode of Taking the Temperature of HVACR, Jamie Kitchen is joined by John Broughton and Jorg Saar to break down the essentials of cold rooms, walk-in boxes, and refrigeration design, covering everything from the difference between holding and blast freezing, to airflow, evaporator placement, refrigerant choices, safety considerations, defrost strategies, and practical installation challenges. Packed with real-world examples and expert insights, this episode offers a clear and engaging look at what it really takes to design and operate efficient walk-in refrigeration systems.