
Mushrooms are a versatile ingredient, adding flavour and texture to a variety of dishes. They are available in many forms, including whole, sliced, chopped, dried, canned, and powdered. When cooking with mushrooms, it is important to know how much to buy and use, especially when substituting one type of mushroom for another. For example, when using button mushrooms, how many ounces are in a cup?
| Characteristics | Values |
|---|---|
| 1 cup of sliced button mushrooms | 8 oz or 227 grams |
| 1 cup of drained canned sliced button mushrooms | 4 oz or 113 grams |
| 1 cup of dried button mushrooms | 1.5 oz or 42 grams |
| 1 cup of whole button mushrooms | 3/4 cup |
| 1/2 pound of chopped button mushrooms | 2 3/4 cups |
| 1/2 pound of sliced button mushrooms | 2 1/2 cups |
| 1 pound of raw and sliced button mushrooms | 5 cups raw, 2 cups cooked |
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What You'll Learn

Fresh button mushrooms: 8 oz = 1 cup
When cooking with mushrooms, it's important to know how many cups you'll get from a certain weight, especially if your recipe calls for a specific amount of cups of sliced or chopped mushrooms. This is particularly useful when you're buying whole mushrooms.
If you're working with fresh button mushrooms, 8 oz of sliced mushrooms equals 1 cup. This is equivalent to about 4 to 5 mushrooms, or 227 grams. If you're using canned sliced mushrooms, you'll need 4 oz or 113 grams to equal 8 oz of fresh mushrooms.
Converting measurements of mushrooms from fresh to dried or canned to cups can be tricky, but with a few simple conversions, you can determine how many whole mushrooms are in a cup of chopped or sliced mushrooms.
For example, if you're using dried mushrooms, 1.5 oz or 42 grams of dried mushrooms is equivalent to 8 oz of fresh sliced mushrooms. This will yield about 2 3/4 cups of chopped mushrooms or 2 1/2 cups of sliced mushrooms from a 1/2 pound bag.
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Canned button mushrooms: 4 oz = 3/4 cup
When it comes to canned button mushrooms, a 4-ounce can is equivalent to 3/4 cup of mushrooms. This measurement applies to both sliced and whole button mushrooms.
To put it another way, 4 ounces of canned button mushrooms, whether sliced or whole, will fill 3/4 of a cup. This is a convenient conversion to know when cooking with mushrooms, as recipes often call for a specific number of cups rather than a weight measurement.
It's worth noting that the conversion may vary slightly depending on the size of the mushrooms and the tightness of the pack. Additionally, if you are using sliced mushrooms, the thickness of the slices can also impact the conversion.
When using canned mushrooms, it's important to drain the liquid before measuring. This ensures an accurate measurement and prevents the cup from overflowing. By keeping a few cans of sliced or whole button mushrooms in your pantry, you can easily add them to recipes that call for fresh mushrooms without having to worry about them spoiling.
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Dried button mushrooms: 1.5 oz = 1 cup
When it comes to dried button mushrooms, the conversion rate from weight to volume differs from that of fresh button mushrooms. Dried button mushrooms are more compact and less voluminous than fresh ones, so you will need a smaller quantity to fill a cup.
Specifically, 1.5 ounces of dried button mushrooms will yield 1 cup, which is equivalent to 8 ounces or 227 grams of fresh sliced button mushrooms. This conversion rate is particularly useful when a recipe calls for a specific volume of mushrooms, but you only have access to the dried variety.
It is important to note that the conversion rate may vary slightly depending on the size and shape of the dried mushrooms. The aforementioned rate is based on the assumption that the dried mushrooms have been reconstituted, or rehydrated, to a similar size as fresh sliced button mushrooms.
Additionally, it is worth mentioning that dried mushrooms can be a convenient option for last-minute mushroom dishes, as they tend to have a longer shelf life than their fresh counterparts. By keeping a supply of dried button mushrooms on hand, you can easily measure out the required 1.5 ounces to make 1 cup for your culinary creations.
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Powdered mushrooms: 1 tbsp = 4 oz fresh
Mushrooms are a versatile ingredient that can be used in a variety of dishes. They come in many different forms, including fresh, dried, canned, and powdered. When cooking with mushrooms, it is important to know the correct conversions and equivalents to ensure you achieve the desired balance of flavour and texture in your dishes.
One important conversion to keep in mind is that 1 tablespoon of powdered mushrooms is equivalent to 4 ounces of fresh mushrooms. This means that if you are out of fresh mushrooms, you can easily substitute them with powdered mushrooms to achieve a similar flavour profile. Powdered mushrooms are a convenient option to stock in your pantry, as they have a longer shelf life compared to fresh mushrooms, which only last about a week in the refrigerator.
When using powdered mushrooms in place of fresh mushrooms, it is important to consider the texture difference. Powdered mushrooms contribute to the taste of the dish without adding the chewy texture of fresh mushrooms, which may be preferable for picky eaters. This conversion can be especially useful when making last-minute adjustments to your recipes.
Additionally, it is worth noting that the conversions may vary slightly depending on the variety of mushroom. Button mushrooms, for example, are the most common type of mushroom available and serve as a good reference point for conversions. However, when working with other varieties, such as oyster mushrooms or shiitake mushrooms, the equivalents may differ, and specific measurements for those mushrooms should be consulted.
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Cooking mushrooms: 1 cup raw = 1/2 cup cooked
Mushrooms are a versatile ingredient that can be used in a variety of dishes, but cooking them can lead to some confusion when it comes to measurements. This is especially true when converting between fresh, dried, and canned mushrooms, as well as dealing with the shrinkage that occurs during cooking.
When working with button mushrooms, it's important to note that they shrink significantly during cooking. As a general rule, a cup of raw button mushrooms will yield approximately half a cup when cooked. This shrinkage is due to the water content in mushrooms, which can range from 80% to 90%.
To illustrate this, let's consider an example. Imagine you have a recipe that calls for one cup of cooked button mushrooms. Knowing the shrinkage factor, you would need to start with two cups of raw mushrooms. This equates to approximately 8 ounces or 227 grams of sliced fresh button mushrooms.
However, if your recipe uses a different type of mushroom, such as oyster mushrooms, the conversion rate may vary. For instance, one cup of sliced oyster mushrooms weighs approximately 3 ounces, so you would need 4.5 cups to get 13.5 ounces or 0.84 pounds. Understanding these conversions is crucial to ensuring your recipes turn out as expected.
Additionally, it's worth mentioning that the conversion rates between fresh, dried, and canned mushrooms can vary. For instance, 8 ounces of sliced fresh button mushrooms is equivalent to 4 ounces of drained canned sliced mushrooms. On the other hand, the same 8 ounces of fresh mushrooms would equate to just 1.5 ounces of dried mushrooms, which would then need to be reconstituted. These conversion rates are important to keep in mind when substituting one type of mushroom for another in your recipes.
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Frequently asked questions
There are about 3 oz of button mushrooms in a cup.
There are 3/4 cup of button mushrooms in a 4-oz can.
There are 2 3/4 cups of chopped button mushrooms in a 1/2 lb bag.
You will get 5 cups of raw button mushrooms from 1 lb of sliced button mushrooms.























