Using a food thermometer. Checking the temperature of your cooked meat, poultry, and seafood with a food thermometer is the only reliable way to make sure your food has reached a safe internal cooking temperature.
Planting Watermelons. The ideal date to plant watermelons varies according to the climate of the region. To produce the sugar necessary for sweet fruit, the melons need hot weather. Seedlings should not be transplanted until three to four weeks after the last average frost date in the spring. Starting seed indoors about six weeks before planting gives you a head start when the soil is warm enough.
Boost Temperatures. The warmer the soil, the faster watermelon seeds germinate. For example, it takes approximately three days for a watermelon seed to germinate in 90 degree Fahrenheit conditions, and approximately 10 days when temperatures are at 70 degrees.nly Use Fresh Seeds. Watermelon seeds rank as one of the easiest seeds to collect and save from ripe fruit. Simply scoop the seeds out of a watermelon, rinse them under water to remove any fruit pieces or fruit juices, and let them air-dry on a paper towel.