
Mushrooms are versatile ingredients that come in a variety of forms, including whole, sliced, chopped, dried, canned, and powdered. The conversion rates between these forms vary depending on the type of mushroom. For example, 1 ounce of dried porcini mushrooms is equivalent to about 1 cup, whereas 1 ounce of sliced fresh button mushrooms is equivalent to about 0.4 cups. When cooking with mushrooms, it is important to consider these conversions to ensure that the correct amount is used in a recipe.
| Characteristics | Values |
|---|---|
| Number of medium-sized fresh button mushrooms | 5-6 |
| Number of cups of sliced fresh button mushrooms | 0.75 |
| Number of cups of sliced canned mushrooms | 0.375 |
| Number of cups of dried mushrooms | 0.1875 |
| Number of cups of cooked button mushrooms | 0.5 |
| Number of grams of fresh mushrooms | 28.34 |
| Number of grams of sliced canned mushrooms | 113 |
| Number of grams of dried mushrooms | 42 |
| Cost of Psilocybin magic mushrooms in the US | $5 to $3000 |
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What You'll Learn

Fresh vs. dried mushrooms
When it comes to cooking with mushrooms, it's important to know that the measurements can vary depending on whether you're using fresh or dried mushrooms. This is because dried mushrooms have a more concentrated flavour and weight than fresh mushrooms, which contain more water. So, if you're substituting one for the other, you'll need to adjust the quantity accordingly.
Let's start with fresh mushrooms. Common varieties include button, portobello, cremini, and oyster mushrooms. These mushrooms are typically sold whole, sliced, or chopped, and their measurements can vary depending on their preparation. For example, one source estimates that a half-pound of fresh button mushrooms yields about 2 3/4 cups when chopped and 2 1/2 cups when sliced. Another source suggests that it takes about 3 ounces or 4 to 5 medium-sized fresh button mushrooms to make a cup, whether they are sliced or chopped. So, if your recipe calls for a specific number of fresh mushrooms or cups of sliced or chopped mushrooms, you can use these conversions to determine how many pounds of whole mushrooms to buy.
Now, let's talk about dried mushrooms. Dried mushrooms are a convenient option for last-minute dishes as they can be reconstituted to resemble fresh mushrooms. When substituting dried mushrooms for fresh ones in a recipe, simply multiply the number of ounces of fresh mushrooms by 5.33 to get the equivalent in dried mushrooms. For example, if your recipe calls for 1 ounce of dried mushrooms, you would need 5.33 ounces of fresh mushrooms. Additionally, it's important to note that dried mushrooms have a more intense flavour than fresh mushrooms, so you may want to adjust the quantity or add mushroom stock or other umami-rich ingredients to enhance the depth of flavour in your dish.
Finally, it's worth mentioning that mushrooms are also available in canned and powdered forms, which can further expand your options when cooking with mushrooms. Canned mushrooms are typically sold sliced or whole, and their measurements can be converted similarly to fresh mushrooms. Powdered mushrooms, on the other hand, are used to impart the flavour of mushrooms without adding their texture, and they can be substituted using weight conversions, such as 1 tablespoon of powdered mushrooms equalling 3 tablespoons of whole dried mushrooms.
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Conversions for recipes
Mushrooms are available in many different forms: whole, sliced, chopped, dried, canned, and powdered. This can make it difficult to know how much to buy when trying a new recipe. Here are some conversions for recipes to help you work out how many mushrooms you need.
If you are using fresh mushrooms, one pound is equal to 20-24 medium-sized button mushrooms. A cup of fresh mushrooms is equivalent to around 3 ounces or 4-5 medium-sized button mushrooms, either sliced or chopped. If you need a half-pound of chopped button mushrooms, you would need at least 2 3/4 cups or 11-14 mushrooms.
If your recipe calls for dried mushrooms, you can substitute them for fresh mushrooms by multiplying the number of ounces by 5.33. For example, if your recipe requires one ounce of dried mushrooms, you would need 5.33 ounces of fresh mushrooms. You can also substitute dried mushrooms for canned mushrooms. One and a half ounces of dried mushrooms is equivalent to four ounces of drained canned sliced mushrooms.
If you are using canned mushrooms, one four-ounce can of sliced or whole button mushrooms is equivalent to 3/4 cup of mushrooms.
It is important to note that there are thousands of varieties of mushrooms, and their conversions may differ depending on the type. These conversions primarily focus on button mushrooms, the most common variety.
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Portobello mushrooms
Six ounces of Portobello mushroom caps yield approximately 2 1/4 cups of chopped mushrooms. This equates to about 0.375 cups of chopped mushrooms per ounce. Therefore, a single Portobello mushroom, typically weighing 3 ounces, would yield around 1.125 cups of chopped mushrooms.
When using Portobello mushrooms in recipes, it is important to consider their strong flavour and how they will interact with other ingredients. They pair well with fish, pancetta, bacon, onions, and bell peppers. For condiments, olive oil, balsamic vinegar, and Dijon mustard complement the mushrooms nicely. Seasonings such as sea salt, black pepper, basil, oregano, rosemary, garlic, and thyme enhance the flavour of Portobello mushrooms.
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Chopped vs. sliced
When it comes to cooking with mushrooms, recipes may call for them to be sliced or chopped, and quantities may be given in cups, ounces, or numbers of mushrooms. Mushrooms are typically available in a variety of forms, including whole, sliced, chopped, dried, canned, and powdered. This can make it challenging to determine how many mushrooms are needed when a recipe calls for a specific amount of sliced or chopped mushrooms.
To begin with, it is important to note that the number of mushrooms in one ounce will vary depending on the type of mushroom and whether they are fresh or dried. For example, one ounce of dried mushrooms is equivalent to about 0.2 ounces of fresh mushrooms. This means that if a recipe calls for one ounce of dried mushrooms, you would need significantly fewer dried mushrooms than fresh mushrooms.
In terms of specific quantities, let's take button mushrooms as an example. Button mushrooms are one of the most common types of mushrooms. When chopped, it takes about 3 ounces or 4 to 5 medium-sized button mushrooms to make one cup. This is true whether the mushrooms are sliced or chopped, as the same amount of chopped mushrooms is needed to fill a cup as sliced mushrooms. So, if you are looking for the number of mushrooms in one ounce, it would be approximately one-fourth of the number of mushrooms needed for a cup, or about 1 to 1.25 medium-sized button mushrooms.
Now, let's compare chopped versus sliced mushrooms. As mentioned earlier, the quantity needed in terms of weight or volume is very similar for chopped and sliced mushrooms. However, there may be instances where a recipe specifically calls for one or the other. Chopped mushrooms are great when you want to incorporate the mushroom flavour into a dish without having large pieces of mushroom in the final product. They are often used in recipes where the mushrooms are meant to be hidden or blended into the dish, such as in sauces, casseroles, or ground meat mixtures. On the other hand, sliced mushrooms are ideal when you want to showcase the mushrooms as a more prominent ingredient. Sliced mushrooms are commonly used in recipes like stir-fries, pasta dishes, or pizza toppings, where you want to see and taste the mushrooms as distinct pieces.
In conclusion, when determining how many mushrooms are in one ounce, it is important to consider the type of mushroom and whether they are fresh or dried. For common button mushrooms, one ounce is equivalent to about 1 to 1.25 medium-sized mushrooms, whether chopped or sliced. When deciding between chopped and sliced mushrooms, consider the desired texture and presentation of the final dish, opting for chopped mushrooms when a smoother texture is preferred and sliced mushrooms when you want to showcase their presence in the dish.
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Common types
The number of mushrooms in one ounce varies depending on the type of mushroom and whether they are whole, sliced, chopped, dried, or powdered.
Button Mushrooms
Button mushrooms, also known as common mushrooms or white mushrooms, are one of the most common types of mushrooms. To get one pound of fresh button mushrooms, you need about 20-24 medium-sized mushrooms. This translates to about 4-5 button mushrooms per sliced or chopped cup, which equates to around 3 ounces. Therefore, one ounce of sliced or chopped button mushrooms would be around 0.75 to 1 button mushroom.
For dried button mushrooms, 8 ounces of sliced fresh mushrooms are equivalent to 1.5 ounces of dried mushrooms.
Portobello Mushrooms
Portobello mushrooms are larger, weighing around 3 ounces (85 grams) each, with a darker flesh than button mushrooms.
Oyster Mushrooms
Oyster mushrooms are another common variety. One cup of sliced oyster mushrooms weighs approximately 3 ounces, so one ounce would be approximately 0.33 cups or one-third of a cup.
Porcini Mushrooms
Dried porcini mushrooms are also commonly used in cooking. One ounce of dried porcini mushrooms is equivalent to about one cup.
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Frequently asked questions
There are about 3 medium-sized fresh button mushrooms in one ounce.
One ounce is equivalent to about 0.375 cups or 3 ounces of sliced fresh button mushrooms.
One ounce of dried mushrooms is equivalent to about 1 cup of dried mushrooms, which is about 5.33 ounces of fresh mushrooms.
One ounce of raw button mushrooms will yield about 0.5 cups or 1 ounce of cooked button mushrooms.

























