You can add a quick release to your panel. For example, add a lever to actuate the retaining clips. Another example might be to use four quick release pins.
We have discussed Velcro but the the enviroment is for beverage containers and bacteria is an issue, hence no threads allowed on the shaft, for fear of bacteria build up.
Magnets seam to make the most sense but my mating part is copper and steel is not allowed because it can rust in the wash down. Some stainless steels are magnetic but I think they have a carbon content that will rust?