
Mushrooms are a versatile ingredient, used in recipes all over the world. They come in many varieties, including button, chanterelle, enoki, morels, oyster, Portobello, shiitake, and straw. When cooking with mushrooms, it's important to know how much to use, especially when substituting dried mushrooms for fresh ones or measuring in cups. So, how many ounces are in a cup of raw mushrooms?
| Characteristics | Values |
|---|---|
| Number of raw button mushrooms | 4 to 5 |
| Weight of raw button mushrooms | 3 ounces or 85 grams |
| Number of cups of sliced raw button mushrooms | 2 1/2 |
| Number of cups of chopped raw button mushrooms | 2 3/4 |
| Weight of dried mushrooms | 14 grams = 0.5 ounce |
| Weight of fresh mushrooms | 4.5 ounces = 127 grams |
| Weight of fresh mushrooms | 1 ounce of dried mushrooms = 5.33 to 8 ounces of fresh mushrooms |
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What You'll Learn

Converting dried mushrooms to fresh
When converting dried mushrooms to fresh, it's important to account for the difference in water content and flavour concentration. Dried mushrooms have a more intense flavour due to dehydration, which concentrates their taste.
The conversion will depend on the measurements given in the recipe—pounds, ounces, or cups. If the recipe asks for ounces, multiply the number of ounces by 5.33 to get the equivalent in fresh mushrooms. For example, if the recipe calls for 1 ounce of dried mushrooms, you would need 1 x 5.33 = 5.33 ounces of fresh mushrooms.
If the recipe calls for cups, the conversion will depend on the type of mushroom. For example, if the recipe calls for 1 cup of dried shiitake mushrooms, you would need approximately 8 ounces (1/2 pound) of fresh shiitake mushrooms. However, if the recipe calls for 1 cup of dried button mushrooms, you would need approximately 3 ounces of fresh button mushrooms.
You can also convert from pounds to ounces. If the recipe calls for 1 pound of dried mushrooms, you would need approximately 16 ounces of fresh mushrooms.
It's worth noting that not all mushrooms are the same, and different types of mushrooms have unique flavours, textures, and moisture levels. Therefore, swapping one type of mushroom for another may not always be straightforward.
Additionally, dried mushrooms need to be reconstituted before they can be used in place of fresh mushrooms. Reconstitution is just a fancy word for rehydration, which can be done by soaking the dried mushrooms in warm or hot water. The hot water will pull more flavour out of the mushrooms, so you can use some of the mushroom broth in your recipe to correct the loss of flavour.
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Fresh mushrooms per cup
When cooking with fresh mushrooms, it's important to know how many you'll need to buy to meet your recipe's requirements. This is especially true when a recipe calls for a number of cups of sliced or chopped mushrooms, but you are purchasing whole mushrooms.
The number of fresh mushrooms you'll get per cup will depend on the variety of mushroom and whether they are sliced or chopped. For example, a cup of sliced button mushrooms will require about 4 to 5 mushrooms or about 3 ounces, whereas a cup of chopped button mushrooms will yield about 2 3/4 cups from a 1/2 pound bag.
When substituting fresh mushrooms for dried mushrooms in a recipe, it's important to account for the difference in water content and flavor concentration. Dried mushrooms have a more intense flavor due to dehydration, which concentrates their taste. Generally, 1 ounce of dried mushrooms is equivalent to about 8 ounces (1/2 pound) of fresh mushrooms.
Additionally, it's worth noting that mushrooms shrink when cooked, reducing to less than half their original volume. For example, 1 pound of raw and sliced button mushrooms, which yields 5 cups, will reduce to about 2 cups when cooked.
To ensure you're starting with the freshest mushrooms, look for ones that are firm and evenly colored, avoiding any with soft dark spots or a damp appearance. Fresh mushrooms should be stored unwashed in the crisper section of the refrigerator or wrapped in paper towels and placed in a plastic bag.
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Converting canned mushrooms to fresh
There are about 3 ounces or 4 to 5 button mushrooms, either sliced or chopped, needed to fill a cup. A half-pound of fresh button mushrooms will yield about 2 3/4 cups chopped or 2 1/2 cups sliced.
If you're looking to substitute canned mushrooms for fresh, you can use the following conversions:
- 8 ounces of sliced fresh button mushrooms = 4 ounces of drained canned sliced mushrooms
- 8 ounces of sliced fresh button mushrooms = 1 1/2 ounces of dried mushrooms plus 3/4 cup of boiling water
- 1 (4-ounce) can of whole button mushrooms = 3/4 cup of mushrooms
- 1 (4-ounce) can of sliced button mushrooms = 3/4 cup of mushrooms
If you're looking to substitute dried mushrooms for fresh, you can use the following conversions:
- 1 ounce of dried mushrooms = 5.33 ounces of fresh mushrooms
- 14 grams of dried mushrooms = 0.5 ounce = 4.5 ounces of fresh mushrooms
It's important to note that different types of mushrooms have unique flavors, textures, and moisture levels, so the conversions may not always be straightforward. For example, if you want the canned mushroom texture with fresh mushrooms, you can try pickling them. Additionally, mushrooms release extra moisture when cooked too close together, so it's important not to overcrowd the pan.
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Powdered mushrooms conversions
Mushrooms are versatile ingredients that can be used in a variety of dishes. They can be purchased fresh, dried, canned, or powdered, and each form has its own unique characteristics and applications in cooking. Powdered mushrooms, in particular, offer a convenient way to add mushroom flavour to dishes without the chewy texture of fresh mushrooms. When using powdered mushrooms, it's important to understand the conversions and equivalents to ensure your dish turns out as expected.
One important conversion to note is that 1 tablespoon of powdered mushrooms is equivalent to 2 ounces (approximately 56 grams) of canned mushrooms, drained. This is a handy substitution if you need to replace canned mushrooms with powdered mushrooms in a recipe.
Additionally, powdered mushrooms can be used as a flavour enhancer in dishes calling for fresh mushrooms. In this case, 1 tablespoon of powdered mushrooms is equivalent to approximately 4 ounces of fresh mushrooms. This conversion allows you to add a concentrated mushroom flavour to your recipes.
When substituting dried mushrooms with powdered mushrooms, the conversion ratio is different. In this case, 1 tablespoon of powdered mushrooms is equivalent to 3 tablespoons of whole dried mushrooms. This conversion takes into account the concentrated form of dried mushrooms and ensures that the flavour profile of your dish remains consistent.
It's worth mentioning that mushroom conversions are not always exact due to variations in mushroom types and sizes. The conversions provided are based on button mushrooms, the most common variety. When working with other types of mushrooms, such as shiitake or portobello, the conversions may need to be adjusted slightly to account for differences in water content and flavour concentration.
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Cooking with mushrooms
Mushrooms are a versatile ingredient that can be used in a variety of dishes. They are part of the fungus family and are commonly used as a meat substitute in vegan and vegetarian dishes. There are many different types of mushrooms, each with its own unique flavour and texture. Some common types include button, cremini, portobello, shiitake, and maitake mushrooms.
When cooking with mushrooms, it's important to note that they act like sponges and will absorb water, so it's best to use a damp paper towel to clean them instead of rinsing them. Mushrooms are also prone to steaming if they are piled on top of each other in a pan, so it's important to give them enough space to brown and crisp up. Here are a few tips for cooking with mushrooms:
- Sautéing: This is a popular method for cooking mushrooms. Heat olive oil in a wide skillet over medium heat, add the mushrooms in a single layer, and cook until browned on one side (about 3-5 minutes). Stir them, then spread them back into a single layer to brown the other side. Season with salt and pepper, and add additional ingredients like garlic, lemon, thyme, and butter to taste.
- Freezing: Mushrooms can be blanched or sautéed before freezing to extend their shelf life. To prevent discolouration, add a small amount of citric acid or lemon/lime/orange juice to the boiling water. Blanch the mushrooms for about 2 minutes, then immediately cool them in ice water. Once cooled, place them in an airtight container and freeze for up to 1 year.
- Conversions: When substituting dried mushrooms for fresh ones in a recipe, note that 1 ounce of dried mushrooms is equivalent to about 8 ounces (1/2 pound) of fresh mushrooms.
Mushrooms are a delicious and versatile ingredient that can be used in a wide variety of dishes, including salads, stews, soups, and grilled dishes. They can be cooked in various ways, including sautéing, grilling, roasting, and braising. Here are some specific recipe ideas that incorporate mushrooms:
- Sautéed mushrooms with garlic, teriyaki sauce, and a splash of red wine, served over steaks, pork chops, or baked potatoes.
- Sautéed button mushrooms with garlic, served over chicken, pork chops, or steak.
- Mushrooms folded into omelettes, topped on toast, or added to long-simmering stews.
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Frequently asked questions
There are 3 to 5 ounces in a cup of raw mushrooms. This depends on the type of mushroom and how they are sliced.
There are 0.2 to 0.3 cups of raw mushrooms in an ounce.
There are 0.18 to 0.2 ounces of dried mushrooms in an ounce of raw mushrooms.

























