Developed countries have refrigeration systems that protect food until it is delivered to customers. But, in developing countries, that refrigeration aspect is often missing at almost every step along the cold chain.
When it comes to walk-in freezers and coolers, no matter how sophisticated the mechanical refrigeration systems or how well maintained, those who are responsible for such units always fret a bit about product integrity, especially if it is a food product.
The most recent International Institute of Ammonia Refrigeration Conference took a look of some of the latest research in terms of working with equipment running on natural refrigerants. The significance was not lost on attendees as such refrigerants continue to gain a foothold in commercial and industrial applications.
Those of you of a certain age interested in a bit of refrigeration nostalgia should check out an episode of the old Andy Griffith TV show that first aired back in 1964. (It usually shows up on the TV Land cable channel from time to time.)