A: Yes. Looking at the ingredients, there isn't anything that requires refrigeration for safety. The company may advise refrigeration for quality purposes: "to maintain whipped products smooth appearance, to avoid holes and bubbles, store whipped product at 38 degree F to 40 degree F", advises Richs. Richs says their Bettercreme pre-whipped icing has a 5 day shelf life at temperatures of less than 80 degrees F.
This blog answers questions related to making and selling safe food under the Minnesota cottage food law.