# Freezing breast milk in glass baby bottles

Can breast milk be frozen in a glass baby bottle?

Lifefactory 4oz Glass Baby Bottle: The bottle can be used to freeze liquids when following the Care & Use Guide\. For freezing, store upright, do not fill to the top, and leave at least 2oz/58 ml of open space from the neck to allow for expansion and prevent glass breaking\. Lifefactory 9oz Glass Baby Bottle: The borosilicate baby bottle can transition from the freezer to boiling water\.

### 1. [Lifefactory 4oz Glass Baby Bottle](/products/ucp/albeebaby-com/9577459220711) (sold by albeebaby\.com)

The bottle can be used to freeze liquids when following the Care & Use Guide\.

- Freezing: The bottle can be used to freeze liquids when following the Care & Use Guide\. (listing) <https://dd1dfe-a3.myshopify.com/products.json>
- Freezing instructions: For freezing, store upright, do not fill to the top, and leave at least 2oz/58 ml of open space from the neck to allow for expansion and prevent glass breaking\. (guide) <https://lifefactory.com/pages/faq>
- Glass heat tolerance: -

### 2. [Lifefactory 9oz Glass Baby Bottle](/products/ucp/anbbaby-com/6739338297430) (sold by anbbaby\.com)

The borosilicate baby bottle can transition from the freezer to boiling water\.

- Freezing: The borosilicate baby bottle can transition from the freezer to boiling water\. (guide) <https://lifefactory.com/pages/faq>
- Freezing instructions: -
- Glass heat tolerance: The bottle is made from thermal\-shock\-resistant borosilicate glass\. (guide) <https://lifefactory.com/products/9oz-glass-baby-bottle>

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Written 2026-10-14T03:03:42.846Z.

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