Yes, a burst of air in the freezer department of a grocery store can potentially cause the freezer doors to open and close a few times. This phenomenon can be attributed to a concept called air pressure differentials.
When the freezer doors are closed, they create a sealed environment inside. However, if a sudden burst of air occurs within the freezer department, it can disrupt the air pressure balance. For example, if a door or another opening in the vicinity of the freezer department is opened abruptly, it can create a rush of air or a gust of wind. This rapid movement of air can cause a temporary increase in air pressure within the freezer department.
The increased air pressure inside the freezer can exert force on the freezer doors. If the force is strong enough, it can overcome the latches or seals on the doors, causing them to open momentarily. Once the doors are open, the sudden release of air pressure can cause them to close again.
This phenomenon is more likely to occur if there is a sizeable difference in air pressure between the inside and outside of the freezer, or if the freezer doors are not tightly sealed. It can be particularly noticeable if the burst of air is strong or if there are multiple freezers in close proximity.
While it may seem spooky or surprising, there is a logical explanation behind the doors opening and closing in response to a burst of air. Grocery stores typically have systems in place to maintain appropriate air pressure and temperature levels in their freezer departments, but occasional fluctuations or unexpected gusts of wind can still occur and affect the freezer doors.