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How Much is 1 Cup of Red Lentils? Weight, Nutrition, and Cooking Guide

3 min read

According to USDA data, a single cup of raw, pink or red lentils weighs approximately 192 grams. Understanding how much is 1 cup of red lentils is vital for accurate meal preparation, ensuring both consistent texture and reliable nutritional accounting in your recipes.

Quick Summary

A cup of dry red lentils typically weighs 192 grams and yields about 2.5 cups when cooked. It provides a significant source of plant-based protein, fiber, and important nutrients like folate and iron.

Key Points

  • Weight of 1 cup: One cup of dry, raw red lentils weighs approximately 192 grams.

  • Cooked Volume: The volume of red lentils expands significantly, with 1 cup dry yielding about 2.5 cups of cooked lentils.

  • High in Fiber: A cup of cooked red lentils contains about 16 grams of dietary fiber, promoting digestive health.

  • Excellent Protein Source: A single cup of cooked red lentils provides nearly 18 grams of plant-based protein.

  • Rich in Nutrients: Red lentils are an excellent source of folate, iron, and other vital minerals.

In This Article

Converting 1 Cup Dry Red Lentils to Weight

For consistent and precise cooking, knowing the exact weight of a cup of dry red lentils is essential. The most commonly accepted standard, as cited by nutrient databases, is that 1 cup of dry red lentils is approximately 192 grams. It is important to note that this can vary slightly depending on the brand, how tightly the lentils are packed, and whether they are split or whole. Using a digital kitchen scale is the most accurate way to measure for optimal cooking outcomes.

Factors Influencing Weight Variation

Several factors can cause the weight of a cup of red lentils to differ slightly from one measurement to the next:

  • Packing Density: Tightly packed lentils will weigh more than a loosely scooped cup.
  • Type of Lentil: While red lentils are often sold split and hulled, some variations may exist.
  • Brand Variations: Different producers may have slightly different sized or processed lentils, leading to minor variations in density.

The Volume Expansion Factor: Dry vs. Cooked

One of the most important aspects of cooking with lentils is understanding their volume expansion. Red lentils, like other legumes, absorb a significant amount of water during the cooking process. As a general rule of thumb, 1 cup of dry red lentils will expand to yield about 2 to 2.5 cups of cooked lentils. This generous expansion makes them a highly economical and filling ingredient.

A Simple Cooking Process

  • Rinse: Before cooking, rinse your 1 cup of dry lentils under cold water until the water runs clear. This removes any dust or debris.
  • Combine: Add the rinsed lentils to a pot along with about 2 to 3 cups of water or broth, which is the standard 1:3 ratio.
  • Boil and Simmer: Bring the mixture to a boil, then reduce the heat to a low simmer. Cover the pot and cook until the lentils are tender.
  • Check Consistency: Red lentils break down quickly, often in just 15-20 minutes, becoming soft and creamy, perfect for soups and dals.

Nutritional Snapshot of 1 Cup Red Lentils

Red lentils are a nutritional powerhouse, offering a wealth of vitamins, minerals, and macronutrients. The nutritional profile changes significantly between their dry and cooked states.

Dry vs. Cooked Red Lentil Nutrition Comparison

Nutrient 1 Cup Dry (approx. 192g) 1 Cup Cooked (approx. 198g)
Calories ~687 kcal ~230 kcal
Protein ~46 g ~18 g
Carbohydrates ~121 g ~40 g
Dietary Fiber ~21 g ~16 g
Fat ~4 g ~1 g
Iron ~14 mg (78% DV) ~6.6 mg (37% DV)
Folate (B9) Varies ~358 mcg (90% DV)

Note: Nutritional values can vary based on the specific brand and cooking method. The cooked data reflects a product with salt added.

Nutritional Benefits

The high fiber content of red lentils is excellent for digestive health and helps promote feelings of fullness, which can aid in weight management. The rich supply of iron is particularly beneficial for vegetarians and vegans who need to ensure adequate intake of this essential mineral. Folate, another crucial nutrient, is vital for pregnant women and for overall cell growth and function.

Culinary Applications and Tips

Red lentils are incredibly versatile and can be used in a wide variety of dishes. Their quick-cooking time and tendency to become soft and creamy make them perfect for the following applications:

  • Soups and Stews: They act as a natural thickener, creating a hearty and satisfying texture.
  • Dals and Curries: In Indian cuisine, split red lentils (masoor dal) are a staple for making rich and flavorful curries.
  • Thickening Agent: Red lentils can be pureed to thicken sauces and gravies without adding flour.
  • Baby Food: Cooked and pureed red lentils are an excellent source of nutrients for infants.

For a more detailed breakdown of lentil nutrition based on USDA data, you can visit a nutrition tracking site like Nutrition Value.

Conclusion

For home cooks and meal planners, understanding the metrics behind how much is 1 cup of red lentils is fundamental. With a dry weight of approximately 192 grams, a single cup expands significantly when cooked, offering a substantial amount of protein, fiber, and essential nutrients. This information allows for accurate recipe scaling and precise nutritional planning, cementing red lentils as a valuable and healthy addition to any diet.

Frequently Asked Questions

The standard weight for 1 cup of dry red lentils is approximately 192 grams, though it can vary slightly by brand and packing density.

When cooked, 1 cup of dry red lentils will typically expand to produce about 2 to 2.5 cups of finished, cooked lentils.

A single cup of cooked red lentils contains approximately 230 calories, according to Healthline.

No, it is not necessary to soak red lentils. They cook quickly and break down easily, making them ideal for dishes like soups and dals.

A good starting ratio is 1 cup of dry red lentils to 3 cups of water or broth. Adjust the liquid amount based on your desired consistency.

Yes, red lentils are highly nutritious. They are an excellent source of plant-based protein, dietary fiber, iron, and folate, among other nutrients.

Measuring by weight (grams) is more accurate because it eliminates inconsistencies caused by how tightly or loosely an ingredient is packed into a measuring cup. A kitchen scale is recommended for the most precise results.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.