How do you unfreeze your stored breast milk?!? FTM here

Lauren

Ladies, my LO is almost 5 weeks and I have been EBF her. I got back to work soon and am curious how the frozen stored breast milk should be unthawed. Since she is breastfeeding I’m not sure exactly how many ounces she eats she just eats until she is full. How will I know how much to unthaw? Help please because I need to learn so I can teach my husband before going back. Thank You in advance. πŸ’œπŸ’œπŸ’œπŸ’œ She is eating about every 2 hours also.