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using Milk First

Handling partial feeds and splitting bags

Milk First help center · Updated July 2026

Quick answer: Used partial records exactly how many ounces left a container and keeps the remainder tracked (on its unchanged clock, including the 2-hour rule for a started bottle, which the app surfaces). Split divides one container into several, each with its own label and the same original pump date.
Milk First stash with partially used and split containers

Partial use, honestly tracked

Tap Used partial on any bag or bottle, enter the ounces, done: your stash total drops by exactly that amount, and stats know the difference between fed, discarded, and donated ounces. A bottle the baby drank from gets its 2-hour countdown flagged so leftovers never sneak back into the fridge.

Splits for real workflows

Portion tonight's 9 oz pitcher into three 3 oz daycare bottles: Split, three portions, three labels (MQ-051-A, -B, -C), all carrying the pitcher's oldest-milk date. The freezer version works identically for dividing a big bag before thawing more than you need.

Every guide on this page is two taps in the app. Download free and try it with your own stash.

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