What is Density?
Density is essentially how much "stuff" is packed into a specific space. In baking terms, it's the weight of the ingredient per unit of volume (e.g., grams per cup).
Sugar is Dense
Its granules are heavy and pack closely together, leaving little air space.
Flour is Light
It's light and powdery, trapping a lot of air between its particles.
Key Insight: This is why 1 cup of sugar weighs roughly 200 grams, while 1 cup of flour weighs only about 125 grams.
The "Cup" Illusion
Many people assume that a cup is a standard unit of measurement for everything. But a cup measures volume (space), not mass (weight). If you were to fill a cup with lead, it would weigh far more than a cup filled with feathers. The same principle applies to baking ingredients.
Comprehensive Ingredient Density Chart
Use this chart as a reference for converting your favorite recipes. All weights are approximate and based on standard US cup measurements.
| Ingredient | 1 Cup (grams) | Density |
|---|---|---|
| Flours & Starches | ||
| All-Purpose Flour | 125g | Light |
| Bread Flour | 127g | Light |
| Cake Flour | 114g | Very Light |
| Whole Wheat Flour | 120g | Light |
| Almond Flour | 96g | Very Light |
| Cornstarch | 128g | Light |
| Sugars & Sweeteners | ||
| Granulated Sugar | 200g | Dense |
| Brown Sugar (packed) | 220g | Dense |
| Powdered Sugar | 120g | Light |
| Honey | 340g | Very Dense |
| Maple Syrup | 322g | Very Dense |
| Fats & Oils | ||
| Butter | 227g | Dense |
| Vegetable Oil | 218g | Dense |
| Coconut Oil | 218g | Dense |
| Dairy | ||
| Milk | 240g | Dense |
| Heavy Cream | 232g | Dense |
| Sour Cream | 230g | Dense |
| Yogurt | 245g | Dense |
| Other | ||
| Cocoa Powder | 100g | Light |
| Rolled Oats | 90g | Very Light |
| Chocolate Chips | 170g | Medium |
| Peanut Butter | 258g | Very Dense |
How to Use This Information
When you see a recipe calling for "1 cup of flour," don't just scoop. Place your bowl on a scale, tare it to zero, and pour in flour until you hit 125 grams. You'll be amazed at how much more consistent your baking becomes!