Is there a reliable way to test jerky moisture levels?

Using a Food Thermometer

Measuring the internal temperature of jerky is an effective way to check moisture levels. Insert a food thermometer into the thickest part of the jerky, avoiding any fat or oil that may be present. The ideal internal temperature for jerky is between 160°F (71°C) and 200°F (93°C). If the temperature is consistently above 160°F (71°C), it indicates that the jerky has been properly dried and has low moisture levels.

Visual Inspection

In addition to measuring the internal temperature, you can also check the jerky’s appearance to determine its moisture level. Look for signs of dryness, such as a leathery texture, a lack of sheen, and a slight flexibility when bent. If the jerky is still slightly flexible or has a shiny appearance, it may not be dry enough. On the other hand, if the jerky is brittle or cracks easily, it may be over-dried. By combining temperature and visual inspection, you can get a reliable reading of the jerky’s moisture levels.

Drying Standards

For primitive food preservation, the US Department of Agriculture (USDA) recommends drying jerky to an internal temperature of at least 160°F (71°C) within 3-4 hours. To achieve this, you can use a combination of low heat and air circulation, such as by placing the jerky in a low-temperature oven (150°F/65°C) or by using a food dehydrator. By following these guidelines, you can produce jerky with low moisture levels that is safe to consume and has a long shelf life.