In a pregnancy ultrasound, the crown rump length can help calculate gestational age and can tell a lot about the baby's health. In a pregnancy ultrasound, the crown rump length can help calculate gestational age and can tell a lot about the baby's health. Menu Crown Rump Length (CRL) From the Ultrasound
1 Raw Red Meat(Beef): Refreezeable if itâs still very cold even without ice crystal, but it needs to be below 40F the whole time and have only been fully thawed for a day or two. If itâs gone above 40F toss it.  Raw Poultry or Chicken, Pork and Lamb: Refreezing is OK if itâs still icy or very cold.
Adapted from Keeping Food Safe During an Emergency (USDA). Thawed or partially thawed food in the freezer may be safely refrozen if it still contains ice crystals or is at 40 Â°F or below. Partial thawing and refreezing may affect the quality of some food, but the food will be safe to eat. If you keep an appliance thermometer in your freezer, itâs easy to tell whether food is safe.