Chapter 13 Smallwares 209 Copyright Goodheart-Willcox Co., Inc. Bimetallic-Coil Thermometer Bimetallic- coil thermometers use a coil made from two metals contained in the probe to measure temperature. These thermometers are avail- able as oven safe or instant read. The oven- safe thermometer takes one to two minutes to register the temperature and is often used for roasts or large pieces of meat. An instant-read thermometer is a smaller thermometer that registers temperature within a few seconds. It is widely used for a variety of temperature monitoring tasks. Its temperature range is 0°F to 220°F (–18°C to 104°C). The infrared energy reflected from that spot is reflected back through the lens of the ther- mometer to measure the surface tempera- ture. Temperatures can be measured from a distance without touching the product. One limitation of infrared thermometers is that they only measure the temperature on the surface and not internally. Thermocouple Thermometer One area where technology has made its way into the commercial kitchens is in the use of electronic devices to measure and record temperatures. The thermocouple thermometer is a style of instant-read thermometer that utilizes a probe which is connected to an electronic meter which digitally displays the temperature. Some thermocouple probes can be placed in an oven and the meter placed outside where the cooking process can be continually monitored. Candy thermometer Instant-read thermometer Straining Equipment Smallwares designed to strain and drain food products come in many interesting shapes and sizes. These tools help chefs sepa- rate solid from liquid, larger particles from smaller, and sometimes change the product consistency. Candy Thermometer A candy thermom- eter, also known as a deep-fat thermometer, is used to measure the higher temperatures used when cooking sugar and deep-frying. This class of thermometers measures temper- atures as high as 400°F (204°C). Infrared Thermometer Infrared thermom- eters work by aiming a beam of laser light onto a small spot on the surface of an object.