4. Fill a cuvette with 5 ml of the broth without any bacterial growth. This is your control blank tube. Place the blank tube in the sample holder and adjust the meter needle to 100% transmittance by turning the light control knob (on the right).5. Remove the blank tube.. Fill a cuvette with 5 ml of the broth without any bacterial growth. This is your control blank tube. Place the blank tube in the sample holder and adjust the meter needle to 100% transmittance by turning the light control knob (on the right).
Answer: If you thawed the steaks in the refrigerator, youâve got some time. Steak thatâs been defrosted in the fridge can be safely kept for an additional 3 to 5 days in the refrigerator before cooking, says the U.S. Department of Agriculture. You also can safely refreeze the steak within that same timeframe.On the other hand, if you thawed the steak in the microwave or in cold water, the USDA advises that you cook it immediately. Thatâs because with either method, the steak could have at least temporarily warmed up to a temperature higher than 40Â°F.ou also can safely refreeze the steak within that same timeframe. On the other hand, if you thawed the steak in the microwave or in cold water, the USDA advises that you cook it immediately. Thatâs because with either method, the steak could have at least temporarily warmed up to a temperature higher than 40Â°F.
My wife is obsessed about not leaving uncooked meats in the fridge longer than a day (esp. Chicken). If we buy chicken breast and we're not going to use them the next day, she'll put them in the freezer. I always tell her it should be OK at least a week, but she thinks I'm crazy.