It isn't cold enough to keep it fresh. Mushrooms Store mushrooms in a closed paper bag in the fridge for up to one week. Don't store mushrooms in the crisper drawerâit's too moist. Onions Place onions in a perforated bag in the refrigerator for one to two weeks.
Keeping the room temperature between 72-80 degrees will ensure their comfort. Temperatures that are too high, or low, can stress the rats and lead to health problems. Laboratory guidelines for temperature are 20-26 degrees Centigrade (68-78.8 Fahrenheit). For breeding situations the recommended temperature is 24-26 degrees Centigrade (75.2-78.8 degrees Fahrenheit).
Temperature Testing - Humidity Testing Laboratory Services. 1  10â x 12â x 8â internal capacity. 2  Temperature range: -90.4Â°F to +185Â°F (-68Â°C to +85Â°C) 3  Humidity range: 10% to 98%. 4  6â x 6â x 7â internal capacity. 5  Temperature range: -90.4Â°F to +185Â°F (-68Â°C to +85Â°C) 6  Humidity range: 10% to 98%.