Consultant Q&A with Marcin Zmiejko, associate principal of WC&P, Denver

Although panini machines are a basic piece of equipment with simple operation, cleaning is still important to keep units operating at peak performance. Heating elements may fail, hinges wear out over time and other components could require service at some point.

Despite the name, panini machines or grills can be used for heating up more than just the popular hot sandwiches. Commercial-grade units, also known as sandwich presses, are slightly sturdier than the residential-grade types.