In order to wrap my head around diagnostic issues, it helps me engage in thought experiments where I think of more extreme examples of an issue or situation or consider the ideal to find the “edges” of a concept. Once I find the extreme edges, I can begin to sort down to a more exact […]

We’ve all probably been in this situation before (maybe in both people’s shoes at different points of our careers): A technician is on the job with their apprentice. The technician tells the apprentice where the probes go on the service ports and exactly what the superheat and subcooling are.  The apprentice’s eyes glaze over, and […]

Even if you're not a market refrigeration tech, we all know that the primary function of refrigeration is to keep food cool. Easy, right? Even though food storage sounds pretty simple, there are a lot of things we should keep in mind when we think about food safety and quality. There’s a lot more to […]