Ziploc bag??

I was pumping in the car and realized I forgot the milk bags… the only thing I had on me was a never opened before ziploc freezer bag and so I used that!!

I’m reading that they aren’t “sanitary”. I used the small ziplocs whenever I was in a pinch for my first son and he turned out fine but my second boy was a late term NICU babe and is now thriving at nearly 4 months, so I’m more precautious with him.

Any moms use ziploc bags without issues??