https://www.verywellfamily.com/can-you-mix-fresh-and-previously-collected-breast-milk-431750
pwede naman pagsamahin basta same temp at ilalagay niyo pong time yung pinaka una niyo na pump
4hrs lang po dapat ang breatmilk pag wala sa ref after that expired na
Basahin mo yung nabigay ko sa link, mi