
Mushrooms are a versatile ingredient, offered in many different forms, including whole, sliced, chopped, dried, canned, and powdered. When cooking with mushrooms, your recipe may require a specific amount, such as 1 oz of dried mushrooms. But how much is that in cups? Well, it depends on the type of mushroom. For dried porcini mushrooms, 1 oz is approximately equal to 1 cup. For dried button mushrooms, 1.5 oz is equivalent to 8 oz of sliced fresh mushrooms, so 1 oz of dried button mushrooms would be slightly less than 2/3 cup.
| Characteristics | Values |
|---|---|
| 1 oz dried mushrooms | ~1 cup |
| 1.5 oz dried mushrooms | 8 oz sliced fresh |
| 1.5 oz dried mushrooms | 4 oz drained canned sliced mushrooms |
| 1 tablespoon powdered mushrooms | 3 tablespoons whole dried mushrooms |
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What You'll Learn
- Dried mushrooms are equivalent to 3/4 cup of boiling water and 8 ounces of sliced fresh mushrooms
- Fresh mushrooms can be chopped, washed, cooked, and frozen for up to a year
- cup of sliced oyster mushrooms weighs approximately 3 ounces
- pound of medium-sized fresh button mushrooms yields 20-24 mushrooms
- tablespoon of powdered mushrooms is equivalent to 3 tablespoons of whole dried mushrooms

Dried mushrooms are equivalent to 3/4 cup of boiling water and 8 ounces of sliced fresh mushrooms
Dried mushrooms are a convenient item to keep in your pantry, as they last a long time and can be used in recipes that call for fresh mushrooms. One and a half ounces of dried mushrooms is equivalent to eight ounces of sliced fresh mushrooms. This is a simple conversion to remember, as it is a 1:6 ratio.
However, dried mushrooms need to be reconstituted with water to be used in recipes. For every one and a half ounces of dried mushrooms, you will need to add three-quarters of a cup of boiling water. This will plump up the mushrooms so they resemble fresh mushrooms.
It is important to note that this conversion may vary slightly depending on the variety of mushroom. For example, one source states that 14 grams of dried mushrooms is equivalent to 0.5 ounces, which would be equivalent to four and a half ounces of fresh mushrooms. This is slightly less than the eight ounces that the 1:6 ratio suggests.
Additionally, the way in which fresh mushrooms are sliced or chopped can impact how much you will need for a recipe. For example, it takes approximately three ounces or four to five medium-sized fresh button mushrooms to make a cup of sliced mushrooms, whereas it takes closer to four mushrooms to make a cup of chopped mushrooms.
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Fresh mushrooms can be chopped, washed, cooked, and frozen for up to a year
Fresh mushrooms can be chopped, washed, cooked, and frozen for up to nine months to a year. Freezing changes the structure, texture, and color of mushrooms, and they won't be pleasant to eat raw after being frozen. However, cooking them before freezing helps preserve their flavor and texture. Here is a step-by-step guide to freezing fresh mushrooms:
- Wash the mushrooms to remove any dirt and debris.
- Trim the woody parts and stems.
- Cut the mushrooms into equal-sized pieces to ensure even cooking or steaming. You can slice, quarter, or chop them into cubes or batons.
- Cook the mushrooms before freezing. Sautéing them in a neutral oil until tender is a good option. Cooking draws out the internal moisture, ensuring a nicer texture and more intact mushroom for use post-freeze.
- Place the cooked mushrooms on a parchment-lined baking sheet in a single layer.
- Freeze the mushrooms.
- Transfer the frozen mushrooms to a zip-top bag or container. Remove as much air as possible, seal, and label.
Now, regarding your initial query, "how many cups is 1 oz of dried mushrooms?" Unfortunately, I could not find a definitive answer. However, I can provide some conversions for dried mushrooms that may be helpful. Here are some equivalents for dried mushrooms:
- 8 ounces of sliced fresh button mushrooms equals 1.5 ounces of dried mushrooms plus 3/4 cup of boiling water.
- 1.5 ounces of dried mushrooms equal 8 ounces of sliced fresh button mushrooms.
- 1 tablespoon of powdered mushrooms is equivalent to 3 tablespoons of whole dried mushrooms.
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1 cup of sliced oyster mushrooms weighs approximately 3 ounces
When cooking with mushrooms, it's important to know how to convert between different forms of the ingredient, such as whole, sliced, chopped, dried, canned, and powdered. This is especially useful when a recipe calls for a specific amount of mushrooms in cups, but you only have access to whole mushrooms or a different form.
For example, 1 cup of sliced oyster mushrooms weighs approximately 3 ounces. This conversion rate can be very helpful when preparing recipes that require specific amounts of mushrooms.
It's worth noting that the conversion rates may vary slightly depending on the type of mushroom. For instance, when dealing with button mushrooms, which are one of the most common types, you would need about 3 ounces or 4 to 5 medium-sized mushrooms to make a cup of sliced or chopped mushrooms. This equates to about 0.5 ounces or roughly one mushroom per 0.2 cups.
Additionally, if you're working with dried mushrooms, the conversion rate changes. One source suggests that 1.5 ounces of dried button mushrooms are equivalent to 8 ounces of sliced fresh mushrooms. This means that 1 ounce of dried mushrooms would be equal to approximately 5.33 ounces of fresh sliced mushrooms, or just over 0.6 cups, assuming the same ratio as with fresh oyster mushrooms.
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1 pound of medium-sized fresh button mushrooms yields 20-24 mushrooms
When cooking with mushrooms, it's important to know how many you'll need for a recipe. This can be tricky, as mushrooms are sold in various forms: whole, sliced, chopped, dried, canned, and powdered. Luckily, there are some simple conversions you can use to determine the amount you need.
For example, if you're working with medium-sized fresh button mushrooms, you can expect to get 20-24 mushrooms from 1 pound. This amount will yield about 2 3/4 cups of chopped mushrooms or 2 1/2 cups of sliced mushrooms. If you're using dried mushrooms, the equivalent of 1 pound of fresh button mushrooms is approximately 1.5 ounces of dried mushrooms plus 3/4 cup of boiling water.
Converting between fresh and dried mushrooms depends on the measurement given in the recipe. If the recipe calls for pounds of fresh mushrooms, multiply the number of pounds by 16, then divide by 5.33 to get the equivalent in ounces of dried mushrooms. For example, if you need 2 pounds of fresh mushrooms, the conversion would be 2 x 16 = 32, then 32 divided by 5.33 = 6 ounces of dried mushrooms. On the other hand, if the recipe asks for ounces of fresh mushrooms, simply divide the number of ounces by 5.33 to get the equivalent in ounces of dried mushrooms. So, if you need 16 ounces of fresh mushrooms, the conversion would be 16 divided by 5.33 = 3 ounces of dried mushrooms.
It's worth noting that different types of mushrooms may have slightly different conversion ratios due to variations in water content and flavor concentration. For instance, when substituting fresh shiitake mushrooms for dried ones, 1 ounce of dried shiitake mushrooms is equivalent to approximately 4 to 5 ounces of fresh shiitake mushrooms.
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1 tablespoon of powdered mushrooms is equivalent to 3 tablespoons of whole dried mushrooms
When it comes to cooking with mushrooms, it's important to know how to convert between fresh, dried, canned, and powdered mushrooms to ensure your recipe turns out as expected. Mushrooms come in various forms, and conversion rates will differ depending on the type of mushroom. For example, with button mushrooms, the most common variety, 1.5 ounces of dried mushrooms equals 8 ounces of sliced fresh mushrooms, or 4 ounces of drained canned sliced mushrooms.
Now, if you're working with powdered mushrooms, a little goes a long way. One tablespoon of powdered mushrooms is equivalent to 3 tablespoons of whole dried mushrooms. This means that powdered mushrooms are a very convenient way to add a burst of mushroom flavor to your dishes without the chewy texture of dried mushrooms.
Additionally, it's worth noting that the conversion rates can vary slightly depending on the type of mushroom. For instance, with oyster mushrooms, 1 cup of sliced mushrooms weighs approximately 3 ounces, so 4.5 cups would be equivalent to 13.5 ounces or 0.84 pounds.
When converting fresh mushrooms to dried mushrooms, the method differs depending on whether your recipe uses measurements in pounds or ounces. If your recipe calls for pounds, multiply the number of pounds by 16, then divide by 5.33 to get the number of ounces of dried mushrooms needed. On the other hand, if your recipe uses ounces, simply divide the number of ounces by 5.33 to get the equivalent amount of dried mushrooms.
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Frequently asked questions
It is approximately 1 cup.
It is equivalent to 1.5 oz of dried mushrooms, which is approximately 1.33 cups.
You would need around 4.5 oz of fresh mushrooms, which is approximately 5 cups of sliced mushrooms.
This is equivalent to 1.5 oz of dried mushrooms, which is approximately 1.33 cups.

























