Got a portobello mushroom that looks a bit off - how can I tell if it's gone bad?

[Lego]

I recently picked up a portobello mushroom that looks a little questionable. Are there specific signs that indicate a mushroom has gone bad? It doesn't smell off, but the appearance is making me second guess. Would love to hear how you all determine freshness!

 

[bossanime]

Trust your senses, especially your eyes and nose! Look for any sliminess, dark spots, or mold growth on the mushroom's surface. A strong, unpleasant odor could also indicate spoilage. When in doubt, it's best to toss it out and play it safe! Better safe than sorry when it comes to questionable mushrooms!

 

[beni]

I recently picked up a portobello mushroom that looks a little questionable. Are there specific signs that indicate a mushroom has gone bad? It doesn't smell off, but the appearance is making me second guess. Would love to hear how you all determine freshness!

Examine the portobello mushroom for black patches, slime, or a slimy coating to determine whether it has spoiled. Feel for firmness and plumpness as well as sniff for a subtle earthy scent. If spoiled, throw it away to avoid food poisoning and stomach problems. To ensure both safety and quality, swap out with a fresh mushroom.