A whole mushroom can last several days longer in the refrigerator, and it offers more cooking options, such as cutting it into a wedge or cube, which some recipes might call for. However, sliced button mushrooms offer ease of preparation, which is certainly nothing to sneer at.
"}},{"@type":"Question","name":"How do I store button mushrooms properly?","acceptedAnswer":{"@type":"Answer","text":"If you store fresh button mushrooms properly, they will stay good for about a week. Place whole, unwashed button mushrooms in a brown paper bag and then fold the top of the bag over. Place the bag in your refrigerator's main compartment. This works because the bag absorbs moisture from the button mushrooms, so they don't get moldy or soggy.
Avoid placing button mushrooms near foods with strong flavors or odors, as they will absorb them like a sponge. Also, be sure not to stack other food items on top of them, as bruised or squished button mushrooms won't keep very long. They also don't look very appetizing. If you don't have a lot of space in your fridge, you can dry the mushrooms. Dried button mushrooms can be re-hydrated, and they only take up little space in your pantry.
"}},{"@type":"Question","name":"Can I freeze fresh button mushrooms?","acceptedAnswer":{"@type":"Answer","text":"While button mushrooms freeze well, it's best to get them in your freezer right away. Don't wait for these vegetables to start deteriorating in your fridge before you decide to freeze some of them. If you have a large mushroom haul, make sure to set some aside for immediate consumption and others for eating later. Be realistic about the amount you and your family can consume in the next week so you can freeze the rest before they rot.
Button mushrooms must be cooked before they are frozen, as this will stop the enzyme action, thereby preserving their quality.