
Mushrooms are a versatile ingredient, adding an earthy flavor to a variety of dishes. They come in many forms: whole, sliced, chopped, dried, canned, or powdered. When cooking with mushrooms, it can be confusing to determine how many cups of mushrooms you need, especially when recipes often call for a specific number, weight, or volume of mushrooms. For instance, how many ounces of mushrooms are in 2 cups?
| Characteristics | Values |
|---|---|
| 2 cups of sliced fresh button mushrooms | 8 ounces |
| 2 cups of drained canned sliced mushrooms | 4 ounces |
| 2 cups of dried mushrooms | 3 ounces |
| 2 cups of cooked sliced mushrooms | 1 cup raw |
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What You'll Learn

Fresh vs dried mushrooms
Two cups of mushrooms typically weigh between 8 and 9 ounces. This range accounts for the varying sizes and densities of different mushroom types.
Mushrooms are a versatile ingredient, and can be bought fresh, dried, canned, powdered, or frozen. When cooking with mushrooms, it is important to understand the conversions between these different forms, as they can vary in weight, flavour, and texture.
Fresh mushrooms are highly perishable due to their high moisture content, and will only stay fresh for about a week in the refrigerator. They are best sautéed, roasted, or baked.
Dried mushrooms, on the other hand, can be stored in airtight containers indefinitely, as long as they are kept dry. They are often used to add depth of flavour to broths, stews, and soups, as their flavour is more concentrated than fresh mushrooms. One ounce of dried mushrooms is equivalent to about 8 ounces of fresh mushrooms.
Dried mushrooms are also used when the mushroom in question is expensive or not locally available. They can be purchased at a relatively low cost, and are easy to store and transport.
When substituting dried mushrooms for fresh, it is important to account for the difference in water content and flavour concentration. Dried mushrooms will need to be rehydrated before use, and will provide a much stronger flavour than fresh mushrooms.
Both dried and fresh mushrooms have their advantages, and they can even be combined to add an extra layer of flavour to dishes.
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Converting measurements
When converting measurements for fresh mushrooms, the variety and size of the mushroom will impact the conversion rate. Medium-sized fresh button mushrooms, for instance, will yield 20 to 24 mushrooms per pound, whereas larger varieties like portobellos will yield fewer mushrooms per pound. To complicate matters further, the method of slicing or chopping mushrooms affects the conversion rate. A cup of chopped button mushrooms, for example, requires about 3 ounces or 4 to 5 mushrooms, whereas a cup of sliced button mushrooms will require slightly fewer mushrooms.
It's worth noting that canned mushrooms also have their own conversion rates. A 4-ounce can of whole button mushrooms typically yields 3/4 cup of mushrooms, whereas a 4-ounce can of sliced button mushrooms may yield a slightly larger volume due to the increased surface area. Additionally, powdered mushrooms have unique conversion rates, with 1 tablespoon typically equalling 3 tablespoons of whole dried mushrooms or 4 ounces of fresh mushrooms.
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Mushroom types
Two cups of mushrooms typically weigh between 8 and 9 ounces. This measurement will vary depending on the type of mushroom and whether they are sliced or chopped.
There are many different types of mushrooms, each with its own unique characteristics. Here is an overview of some common mushroom varieties:
Button mushrooms, also known as white mushrooms or common mushrooms, are the most prevalent type, constituting an estimated 90% of the mushrooms consumed in the US. They are mild in flavor and highly versatile, suitable for raw or cooked applications such as soups, salads, pizzas, stuffing, and sautéing.
Criminis and portobellos belong to the same species as button mushrooms but differ in maturity and colour. They possess a darker hue and a more robust flavour profile.
Chanterelles are recognised for their trumpet-like shape, golden colour, and firm texture. They are prized for their apricot-like fragrance but are challenging to cultivate, often requiring foraging in the wild. Caution must be exercised to avoid false chanterelles, which are non-edible lookalikes.
Shiitake mushrooms are large, with a cap diameter of about 2 to 3 inches. They exhibit a strong flavour and can be used in a variety of dishes, including creamy pasta carbonara.
Oyster mushrooms, also known as king oysters, are valued for their meat-like texture and versatility. They are commonly used in tacos and other dishes where their unique flavour can enhance the dining experience.
Morels are wild fungi with a honeycomb-like appearance. They contribute a distinct flavour and texture to culinary creations.
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Weight to cups
Mushrooms are a versatile ingredient, available in many different forms: whole, sliced, chopped, dried, canned, and powdered. When cooking with mushrooms, your recipe may call for a specific number of mushrooms, weight, or cups. Here are some simple conversions from weight to cups for various types of mushrooms:
Fresh Mushrooms
The conversion of fresh mushrooms to cups depends on whether they are whole, sliced, or chopped. For example, one source suggests that one pound of fresh cremini mushrooms is equivalent to about five cups of sliced mushrooms or six cups of chopped mushrooms. However, another source suggests that eight ounces of sliced fresh button mushrooms equals three-quarters of a cup.
Canned Mushrooms
Canned mushrooms are typically sold by weight, and the conversion to cups can vary depending on the type of mushroom and whether they are drained or not. For example, one source suggests that a four-ounce can of sliced button mushrooms equals three-quarters of a cup. On the other hand, eight ounces of drained canned sliced mushrooms are equivalent to four ounces of dried mushrooms.
Dried Mushrooms
Dried mushrooms are more concentrated in flavor and take up less space than fresh mushrooms. One source suggests that 1.5 ounces of dried mushrooms is equivalent to eight ounces of sliced fresh mushrooms. However, another source suggests that the conversion depends on the type of mushroom and provides the following equation: ounces of dried mushrooms x 5.33 = ounces of fresh mushrooms. For example, 1.5 ounces of dried shiitake mushrooms would equal about 12 ounces of fresh shiitake mushrooms.
Powdered Mushrooms
Powdered mushrooms are a convenient way to add mushroom flavor to a dish without the texture of whole, sliced, or chopped mushrooms. The conversion from weight to cups for powdered mushrooms depends on the intended use. For example, one tablespoon of powdered mushrooms is equivalent to four ounces of fresh mushrooms or two ounces of canned mushrooms.
In summary, the weight-to-cup conversion for mushrooms depends on the type of mushroom, whether they are fresh, canned, dried, or powdered, and the specific preparation, such as whole, sliced, or chopped. By using these simple conversions, you can easily substitute different types of mushrooms in your recipes and ensure you have the right amount on hand.
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Number of mushrooms
When it comes to mushrooms, the number you'll need depends on whether they are whole, sliced, chopped, dried, canned, or powdered. For example, one source states that 1 pound of fresh button mushrooms contains around 20 to 24 medium-sized mushrooms. This means that to get 2 cups of mushrooms, you would need 10 to 12 button mushrooms. However, another source suggests that 3 ounces or 4 to 5 button mushrooms, either sliced or chopped, are required to make 1 cup. This would mean that for 2 cups, you'd need 6 to 10 mushrooms.
The number of mushrooms also varies depending on their variety. For instance, when substituting fresh shiitake mushrooms for dried ones, it's important to account for the difference in water content and flavor concentration. Dried mushrooms have a more intense flavor due to dehydration. Generally, 1 ounce of dried mushrooms is equivalent to about 8 ounces (1/2 pound) of fresh mushrooms. If we estimate that 1 ounce of dried shiitake mushrooms contains approximately 8 to 10 whole mushrooms, then five dried mushrooms would weigh about 0.5 to 0.625 ounces.
Additionally, the preparation method can impact the number of mushrooms needed. For example, 1 pound of raw and sliced button mushrooms yields 5 cups, but this reduces to 2 cups when cooked. Similarly, a half-pound of fresh button mushrooms yields about 2 3/4 cups chopped or 2 1/2 cups sliced, but cooking them will result in a yield of about 2 cups.
It's worth noting that purchasing mushrooms whole is often more affordable than buying them pre-cut. As such, it's useful to know how to prepare them yourself. When chopping or slicing mushrooms, aim for even pieces to ensure consistent cooking. Additionally, it's important to select fresh mushrooms that are firm and evenly colored, avoiding any with soft dark spots or a damp appearance.
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Frequently asked questions
Around 12-15 ounces, depending on the type of mushroom and whether they are sliced or chopped.
6 ounces or 170 grams.
6 ounces.
2 ounces.
Multiply the number of ounces by 5.33 to get the equivalent in fresh mushrooms. For example, 1 ounce of dried mushrooms is equivalent to approximately 5.33 ounces of fresh mushrooms.

























