Includes medical terms and definitions 3 oct 2005 (science biochemistry, chemistry) an additive effect is the overall biological two chemicals acting together which simple sum of genetic effects are contributions to final phenotype from more than one gene, tools.
Therefore, you want your refrigerator to be cold, but not so cold that it freezes things. The preferred temperature is somewhere between 35 and 38 degrees F (1.7 to 3.3 degrees C). Anything higher and foods will spoil too quickly (it also presents food poisoning problems, as described in several of the links below).
So exactly what temperature should a fridge be? Your fridge should be cooling food anywhere in between 36 and 40 degrees Fahrenheit (2.2 to 4.5 degrees Celsius). How do you test this? Use a probe thermometer to gauge the temperature of the inside of food that has been sitting in your fridge for at least 24 hours.