
Portabella mushrooms, also known as portobello or portobella mushrooms, are a popular vegetarian alternative to meat due to their meaty texture and umami flavour. They are also a good source of vitamins, minerals, and antioxidants. When preparing portabella mushrooms, it is recommended to start by cleaning them with a damp cloth or rinsing them under cold running water for 10-20 seconds. The stems should be removed, and the gills may be scooped out with a spoon as they can become mushy when cooked. To cut the mushrooms, place the cap side down on a cutting board and slice into the desired thickness, typically 1/4-inch thick slices. For quartered mushrooms, cut the cap in half, turn 90 degrees, and cut in half again. Portabella mushrooms can be cooked whole or sliced and are commonly grilled, roasted, or sautéed.
| Characteristics | Values |
|---|---|
| Cleaning | Wipe with a damp cloth or paper towel, or rinse under cold running water for 10-20 seconds |
| Removing the stem | Hold the mushroom with the stem facing out, then pull out the stem gently |
| Removing the gills | Use a spoon or a knife to gently scrape out the gills from the underside of the cap |
| Cutting technique | Cut the cap in half, then turn 90 degrees and slice into 1/4-inch thick slices, or cut into quarters |
| Marinating | Drizzle with olive oil, garlic, salt, pepper, herbs, and balsamic vinegar for 20 minutes or more |
| Cooking | Grill, roast, sauté, or poach |
| Storage | Store whole mushrooms in the refrigerator in a partially open plastic bag to allow ventilation and release ethylene gas |
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What You'll Learn
- Cleaning portabella mushrooms: Rinse whole mushrooms under cold water for 10-20 seconds or wipe with a damp cloth
- Removing the stem: Hold the mushroom with the stem facing outwards, then gently pull out the stem
- Removing the gills: Use a spoon to gently scrape out the dark gills from the underside of the mushroom cap
- Slicing the cap: Place the cap stem-side down and cut into 1/4-inch thick slices or desired thickness
- Scoring the cap: Use a paring knife to gently score the top of the cap in 1/2-inch wide strips to allow steam to escape during cooking

Cleaning portabella mushrooms: Rinse whole mushrooms under cold water for 10-20 seconds or wipe with a damp cloth
Portobello mushrooms are a popular ingredient in vegetarian recipes due to their meaty texture and flavour. Before cooking, it is important to clean them properly.
One way to clean portobello mushrooms is to rinse them under cold running water for 10-20 seconds. This method is quick and effective, especially if you have a large batch of small mushrooms to prepare. It is a myth that mushrooms will become soggy if washed—since they are already mostly made of water, a quick rinse will not make a noticeable difference. To hand-wash your mushrooms, fill a cup with water, soak a clean sponge in the liquid, and squeeze out the excess water. Then, gently wipe the mushroom caps, making sure to clean the undersides and stems until no dirt or debris remains.
If you are using large mushroom caps, you can also use a damp cloth, paper towel, or mushroom cleaning brush to clean them individually. First, remove the stems, which can be woody and unpleasant to eat. You can do this by gently twisting the stems until they pop out, or by using a small knife to cut them out. Next, use a spoon or paring knife to remove the gills from the underside of the mushroom cap. While edible, the gills are often removed as they can turn dishes an unappetizing colour. Finally, gently wipe the mushroom caps with a damp cloth to ensure they are free of any remaining dirt or debris.
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Removing the stem: Hold the mushroom with the stem facing outwards, then gently pull out the stem
Portabella mushrooms, also known as portobello or portobella mushrooms, are a popular ingredient in vegetarian burgers and pastas. They are also commonly grilled or roasted.
When preparing portabella mushrooms, it is common practice to remove the stems. To do this, hold the mushroom with the stem facing outwards. If you are right-handed, hold the mushroom in your left hand and vice versa. This will make it easier to pull out the stem gently. Removing the stem by hand is the best method, as it minimises waste and maximises the amount of mushroom available for cooking.
When removing the stem, you may also pull out some of the gills. If you wish to keep the gills, use a small spoon to gently scrape them away from the mushroom cap. The gills can be discarded, or kept for use in other recipes.
After removing the stem, you may want to clean the mushroom cap with a damp cloth or paper towel. You can also rinse the mushroom under cold running water for 10-20 seconds, or clean it with a moist sponge.
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Removing the gills: Use a spoon to gently scrape out the dark gills from the underside of the mushroom cap
Portobello mushrooms are a versatile ingredient, commonly used as a vegetarian burger or sliced over pasta. They are also great for salads, omelettes, and stuffing.
When preparing portobello mushrooms, it is common practice to remove the gills from the underside of the cap. This is because they can become mushy when cooked. To do this, first, remove the stem by gently pulling it out. This should pull out some of the gills along with the stem. Next, take a small spoon and gently scrape out the remaining dark gills from the underside of the mushroom cap. Be gentle, but apply enough pressure to get under the gills, prying them out completely. The underside of the mushroom cap should now appear pretty white.
After removing the gills, you can lightly wash the mushroom cap with a damp cloth or paper towel. Some sources suggest rinsing the whole mushroom under cold running water for 10-20 seconds. However, others claim that washing mushrooms is not a good idea. It is then ready to be sliced or cooked whole.
If you plan to cook the mushroom whole, it is recommended to score the top side lightly. This allows steam to escape, preventing the mushroom from distorting as it cooks and ensuring more even cooking. It also allows any marinade to penetrate more deeply.
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Slicing the cap: Place the cap stem-side down and cut into 1/4-inch thick slices or desired thickness
Portabella mushrooms are a versatile ingredient, commonly used as a vegetarian burger option or sliced and served over pasta. They can be grilled, roasted, sautéed, or used in salads, omelets, and stuffings.
Before cutting, it is important to clean the portabella mushrooms. You can do this by rinsing them under cold running water for 10-20 seconds or by wiping them with a damp cloth or paper towel.
When cutting the cap, place the cap stem-side down on a cutting board. Using a paring knife, gently cut the cap into 1/4-inch thick slices or your desired thickness. You can also score the top of the cap with 1/2-inch wide strips before slicing to allow steam to escape during cooking and to create even squares across the cap.
If you are using the portabella mushrooms for burgers, you may want to keep the caps whole. In this case, it is best to lightly score the top side of the cap to prevent the mushroom from distorting as it cooks and to allow for more even cooking.
Portabella mushrooms are a great addition to many dishes and can be cut into slices, quarters, or diced pieces depending on your desired thickness and recipe.
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Scoring the cap: Use a paring knife to gently score the top of the cap in 1/2-inch wide strips to allow steam to escape during cooking
Portabella mushrooms are a versatile ingredient, and can be cooked in a variety of ways. Scoring the cap is a useful technique when cooking the mushroom whole.
To score the cap, use a paring knife to gently cut into the top of the cap in strips around half an inch wide. This will allow steam to escape during cooking, preventing the mushroom from distorting as it cooks and shrinks. Scoring the cap will also allow any flavours from a marinade to penetrate more deeply.
Portabella mushrooms have a meaty texture, so it is recommended to cut them into slightly thicker slices. To do this, first remove the stem, which tends to be woody and dried out. You can then slice the cap into pieces of your desired size.
It is also common practice to scoop out the gills of portabella mushroom caps, as they can become mushy when cooked. To do this, use a small spoon to gently scrape out the gills from the underside of the cap.
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Frequently asked questions
You can rinse portabella mushrooms under cold running water for 10-20 seconds. Alternatively, you can wipe them with a damp cloth or paper towel.
Yes, you should remove the stems of portabella mushrooms. Their stems tend to be woody and dried out, and they don't taste good in recipes.
It is common practice to remove the gills of portabella mushrooms, as they can become mushy when cooked. You can use a spoon to gently remove them.
First, remove the stem and gills. Then, place the cap stem-side down on a cutting board. Using a knife, gently score the top of the mushroom in strips, then turn and repeat to create even squares. Finally, turn the mushroom 90 degrees and slice into 1/4-inch thick slices.
Yes, you can marinate portabella mushrooms. However, mushrooms are porous, so it is best not to marinate them for too long. About 20-30 minutes before grilling or roasting should be sufficient.

























