Oat Milk

Dairy & Fatsstaple

Plant milk made from blended oats. Creamy body and mild sweetness; the closest texture match to dairy milk among plant milks.

Reviewed by the CupOrGram Editorial TeamSources: King Arthur Baking, USDA FoodData Central, in-house testingMethodology

Properties

Density Index
1.04 g/cm3
1 Cup Weight
245g
Texture
Liquid
Category
Dairy
Top Substitute

Whole Milk

Use 1:1

Dairy alternative. Higher protein and slightly less sweetness.

Most-used links for Oat Milk

Conversions

cupsgrams
1/4 cups61.0 grams
1/3 cups81.0 grams
1/2 cups123 grams
1 cups245 grams
1.50 cups368 grams
2 cups490 grams
3 cups735 grams
4 cups980 grams
Figures use the US cup (236.6 ml).
Density: 1.04 g/ml
Quick Convert

Ingredient-specific, density-based conversions for baking

1 cups of Oat Milk equals 246 grams
Ingredient-specific · density-based
Cup size

Recommended Tools & Pantry Picks for Oat Milk

Optional shopping references for bakers who want to compare tools and pantry options related to oat milk.

Digital Kitchen Scale

Essential for cup-to-gram accuracy and repeatable bakes.

Shop scales

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Substitutions for Oat Milk

Storage Tips

Refrigerate after opening. Use within 7-10 days.

Baking Science

Contains roughly 8-10% oats, plus oil (often rapeseed) for body. Natural beta-glucan content explains the creamy mouthfeel. Steams into a stable microfoam — the reason baristas favour it.

Recipe Context

For laminated dough: temperature and exact fat mass impact layer definition.

For creaming methods: weight keeps butter-to-sugar balance stable.

For custards: tight dairy ratios reduce curdling risk.

Common Pitfalls

  • Switching brands without re-checking weight can change texture and bake time.
  • Using volume-only measurements for dense ingredients can overshoot recipe targets.
  • Butter and dairy temperature affects emulsion stability and spread.

Brand Variance & Measuring Method

Baseline reference: 1 cup oat milk = 245g. In real kitchens, a practical range is usually 230g-260g per cup (6% band).

Why this happens: temperature and fat phase (solid vs softened vs melted) change effective volume.

Figures use the US cup (236.6 ml).

Common Questions

How many grams is 1 cup of oat milk?

1 cup of oat milk weighs 245 grams.

What can I substitute for oat milk?

Almond Milk (1:1), Whole Milk (1:1), Soy Milk (1:1)

Explore Oat Milk Further

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