
Portobello mushrooms are a versatile ingredient that can be grilled, sautéed, roasted, or baked. However, before cooking, it is recommended that they are cleaned and prepared. While the gills of portobello mushrooms are edible, many recipes call for them to be removed. This is because the dark gills can discolour dishes, giving them an unappetizing appearance. Some also claim that the gills have a bitter taste, although this is disputed by others. To remove the gills, hold the mushroom in your palm and use a paring knife to slice off the inner edges, exposing the gills. Then, use a spoon to gently scrape them away, being careful not to go too deep into the mushroom's flesh.
| Characteristics | Values |
|---|---|
| Should you scrape out the gills? | Yes, to avoid discolouration and to remove any grit. Removing the gills can also extend the shelf life. |
| How to scrape out the gills? | Hold the mushroom in the palm of your hand and use a paring knife to slice off the inner edges while slowly rotating the mushroom. Then, use a spoon to gently scrape the gills away. |
| How to clean the mushroom? | Wipe with damp kitchen paper or a damp paper towel. Mushrooms can also be washed under cold running water for 10-20 seconds. |
| How to store the mushroom? | Store whole mushrooms in an open plastic bag in the refrigerator. They should last a few days. |
| How to marinate the mushroom? | Marinate in olive oil, garlic, salt, pepper, herbs, and balsamic vinegar for 20 minutes to soften the inside and reduce cooking time. However, do not marinate for too long as mushrooms are porous and will absorb too much liquid. |
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What You'll Learn

Removing gills prevents discolouration
Portobello mushrooms are commonly used in dishes such as burgers, sandwiches, and pizzas. They are often prepared by wiping any dirt off with a damp paper towel or kitchen paper. However, some people choose to remove the gills of portobello mushrooms before cooking.
The gills of a portobello mushroom are the thin papery ribs found underneath the cap. They can be removed by slicing off the inner edges of the mushroom with a paring knife and then gently scraping the gills away with a dessert spoon. This technique is used to achieve a neat and discrete removal of the gills, preventing discolouration of the dish and maintaining an appealing appearance.
The dark black gills of portobello mushrooms can cause food to turn a murky brown colour, so removing them can help maintain the aesthetics of the dish. This is especially important for dishes where the mushroom is a prominent ingredient, such as pizzas or sandwiches. Removing the gills can also extend the shelf life of the mushroom by a week or more, as the gills are usually the first part of the cap to spoil.
Additionally, removing the gills can aid in the preparation process, particularly when breaking down the large cap into smaller pieces. It also allows for a more even cooking process by preventing the mushroom from distorting as it shrinks during cooking.
Some people choose to simmer the gills to create a stock that can be used in sauces or soups, ensuring that no part of the mushroom goes to waste. However, it is important to note that the gills themselves do not impact the texture of cooked portobello mushrooms, and some people choose to leave them intact. Ultimately, the decision to remove the gills comes down to personal preference and the specific requirements of the dish being prepared.
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Extends shelf life
Portobello mushrooms are commonly used in dishes such as burgers, sandwiches, and pizzas. However, the gills of these mushrooms can turn dishes a murky brown colour, and they can be a little mushy in texture. Removing the gills can extend the shelf life of the mushrooms by several days, and it can also help with preparation, especially if you're breaking the mushroom down into smaller pieces.
To remove the gills, hold the mushroom in the palm of your hand and use a paring knife to slice off the inner edges, slowly rotating the mushroom as you go. This will expose the gills on the underside of the mushroom cap. Then, use a dessert spoon to gently scrape the gills away. You can also use a brush or a damp paper towel to wipe away any remaining bits.
It is also possible to wash portobello mushrooms under cold running water for 10-20 seconds, although some people prefer to avoid this as it can make the mushrooms soggy. If you do choose to wash your mushrooms, it's important to make sure they are whole and not cut or sliced.
By removing the gills and properly cleaning your portobello mushrooms, you can extend their shelf life and ensure they are ready for use in your favourite recipes.
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Aids preparation for dishes like soups
Portobello mushrooms are a versatile ingredient that can be used in a variety of dishes, including soups. When preparing these mushrooms for soup, there are several steps you can follow to ensure optimal results.
Firstly, it is important to select fresh mushrooms with firm caps and stems. Avoid any that appear shrivelled or soft. Examine the gill structure by flipping the mushroom over. If you intend to remove the gills, use a paring knife to slice off the inner edges while slowly rotating the mushroom. Then, gently scrape out the gills with a dessert spoon. Removing the gills can improve the appearance of your dish, as the gills can turn your soup a murky brown colour. It can also extend the shelf life of the mushrooms and help with preparation if you plan to cut the caps into smaller pieces. However, some people choose to keep the gills, as they are edible and can be used to add flavour to stocks for soups.
Once you have prepared the mushrooms, you can decide whether to wash them or not. Some sources suggest that it is safe to wash whole mushrooms under cold running water for 10-20 seconds. Others recommend simply wiping them with a damp paper towel to remove any dirt. If you do choose to wash the mushrooms, ensure they are whole and not cut or sliced.
After cleaning, you can marinate the mushrooms to enhance their flavour. Olive oil, garlic, salt, pepper, herbs, and balsamic vinegar are popular choices for a marinade. However, be cautious not to over-marinate, as mushrooms are porous and can absorb too much liquid. A light scoring on the top side of the cap can also help during cooking by allowing steam to escape, preventing distortion, and ensuring even cooking.
Finally, you can cook the mushrooms before adding them to your soup. Baking, roasting, or simmering are all suitable methods. Portobellos are a tasty addition to soups, providing a meaty texture and a savoury flavour that complements a variety of ingredients.
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Ensures an appealing appearance
Portobello mushrooms are cremini mushrooms that have matured and developed frilly gills. These gills are not necessary to remove, but doing so ensures an appealing appearance. The gills can turn food a murky brown, so scraping them out can help to avoid discolouration. Removing the gills also helps with preparation, especially if you plan to cut the mushroom into smaller pieces.
To remove the gills, start by slicing off the inner edges of the mushroom with a paring knife while slowly rotating it. This will expose the gills on the underside of the mushroom cap. Then, use a dessert spoon to gently scrape away the gills. Be sure to pry with the tip of the spoon to remove them in neat chunks, rather than smearing them with the side of the spoon. You can also use a brush to lightly clean the mushroom cap after removing the gills.
Some people prefer to remove the gills with a quick rinse of water, but others suggest that this is unnecessary and that a damp paper towel is sufficient. If you do choose to rinse the mushrooms, it is recommended to do so for only 10-20 seconds under cold running water. It is also important to note that mushrooms are extremely porous, so if you decide to marinate them, do not do so for too long, or they will become soggy.
Removing the gills from Portobello mushrooms is a simple process that can enhance the appearance of your dish. It ensures that your mushrooms look golden and enticing, rather than muddy and discoloured. By taking a little extra time to prepare your mushrooms, you can achieve a more appealing presentation for your culinary creations.
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Avoids a mushy texture
Scraping out the gills of portobello mushrooms is a common practice, but it is not necessary to avoid a mushy texture. The gills themselves do not seem to impact the texture of cooked portobello mushrooms. Instead, they are removed to avoid discolouration and to get rid of any grit that may be present.
Portobello mushrooms have a meaty texture, making them a popular vegetarian option for burgers and sandwiches. When preparing these mushrooms, some people choose to remove the gills to maintain a visually appealing golden colour. The gills can also make the food look muddy or murky brown, which may be unappetizing to some.
To remove the gills, hold the mushroom in your palm with the stem side out. Gently pull out the stem, which should also remove some of the gills. Then, use a small spoon to carefully scrape out the remaining gills from underneath the cap. It is important to be gentle yet firm, prying the gills out in neat chunks rather than just scraping the surface.
Some people choose to remove the gills to extend the shelf life of the mushrooms. The gills are usually the first part of the cap to spoil, so removing them can keep the mushrooms fresh for up to a week or more. Additionally, removing the gills can make it easier to break down the mushroom cap into smaller pieces for certain recipes.
While scraping out the gills is a matter of preference for some, others believe it is an unnecessary step. Instead of scraping, you can simply wipe the mushrooms clean with a damp paper towel or rinse them quickly to remove any residual dirt or grit.
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Frequently asked questions
The gills of a portobello mushroom can turn your food a nasty, murky, scuzzy brown, so it's best to scrape them out. Removing the gills can also extend the shelf life of the mushroom.
First, use a paring knife to slice off the inner edges of the mushroom while slowly rotating it. This will expose the gills. Then, use a dessert spoon to gently scrape out the gills. You can then lightly wash the mushroom with a towel, toothbrush, or pad.
You can use the gills to make a stock for soups or sauces.

























