For some reason, I never considered the ice cream parlors would want to have air conditioning too, but that is actually a key component in how they keep the ice cream cold and not melty.
I currently work after school at a curte ice cream place downtown. The owner is super nice and apparently used to make the ice cream in his garage. Air conditioning is pumped into the cases of ice cream, which keeps their internal temperature at a cool 38 degrees. I needed to check in each shift, and make sure that all of the air conditioning units were working properly, otherwise it would mean disaster. We had a total of 5 large air conditioning units in our store, all of which required very specific points of care, and required an HVAC technician to service them almost every two months. The HVAC technician will come and oil all the wheels, ensure all the cranks and innards of the air conditioning units were all working to full capacity, and replace anything that wasn’t. This is one of the major keys to our success, as this method allows us to keep the ice cream at a good temperature,and keeps the store nice and cold during the summers. The winters can be a bit rough, as the air condition competes with the cold air outside. Investing in a good pair of gloves is a good rule of thumb when working in air conditioning, but I also wear a hat and scarf tied tightly around my neck, which is truly a blessing in disguise. In the summer, I am used to the air condition temperature by then, and am able to only wear a shirt and a pair of jeans when in the air conditioning climate.