TRIATHLON SERIES GAS FRYERSCHAPTER 4: FRYER OPERATIONS4-54.3 Final PreparationWARNINGNEVER set a complete block of solid shortening on top of heating tubes. To do sowill damage the heating tubes and fry vessel, and void the warranty.4.3.1 Filling Fryer with Cooking Oil/ShorteningA. When using a liquid shortening (cooking oil), fill the fryer to the bottom OIL LEVEL linescribed into the back of the fryer vessel.B. When using a solid shortening, first melt it in a suitable container, or cut it into small piecesand pack it below the heat tubes, between the tubes and on top of the tubes, leaving no airspaces around the tubes. Do not disturb or bend the sensing bulbs.C. If the shortening is not melted first, turn the burners "ON" for about 10 seconds, "OFF" for aminute, etc., until the shortening is melted. If you see smoke coming from the shorteningwhile melting this way, shorten the "ON" cycle and lengthen the "OFF" cycle. Smokeindicates potential scorching of the shortening, which will shorten its useful life.D. Before starting operation, turn the operating thermostat to the probable workingtemperature; wait for the temperature to stabilize then check with a high-quality immersionthermometer to ensure that the thermostat is properly calibrated.4.4 Extending Shortening/Oil LifeAlthough 350°F (177°C) is the recommended temperature for most cooking operations, set the fryerat the lowest possible temperature which produces a high-quality end product. This ensuresmaximum life of shortening.When the fryer is not in use, set the thermostat to a lower temperature than that used during cooking.Light loads, too, may be cooked at lower temperatures. A good operator should experiment todetermine the optimum temperature and load conditions for the various food items.