We’ve tested and picked out the best portable grills for every type of cook just in time for grilling season. Tabletop vs. Freestanding Many portable grills don’t have a stand and must be placed on a table, making them tabletop models. Most portable grills can reach temperatures of up to 500-700 degrees F, which is more than enough to sear a steak. Most portable grills are designed to work with small 16.4-ounce canisters, which screw directly onto the gas line. Before using a large tank, check your portable grill’s manual to see if it has a built-in regulator.