The phrase "low heat" refers to a level of heat that is not very hot or intense. It means using less heat or heating something at a lower temperature. Full definition
* If you don't have an oven proof skillet, you can cook the eggs by covering the pan at the end and cooking over low heat until cooked to preference. (paleorunningmomma.com)
Keep the pan covered on low heat over a heat diffuser for up to 12 hours; monitor the moisture level, adding milk or water as needed. (bookpage.com)
Allow to simmer over low heat until very thick, about 10 minutes, whisking frequently. (connoisseurusveg.com)