How much milk should i leave? ADVICE NEEDED!

[babymine13]

I'm going out for the first time tonight and my parents are babysitting my one month old. My question is; how much milk should I express to leave them for her? I'll only be gone 3 hours max, so she may feed up to three times times during that time. How much milk do people usually leave? Thank you!
(Shes had expresses milk by bottle before because she didnt take to my boob straight away. Also shes nearly 10 lbs if that makes a difference)

 

[evasmum]

this tells you about volumes of ebm...

https://www.kellymom.com/bf/pumping/milkcalc.htm

 

[Soph22]

leave as much as you can, in seperate bottles if possible. That way if they don't end up needing all of it you can save what's left over for next time.