Have you ever opened a bag of broccoli and noticed a peculiar smell that resembles gas? It’s an intriguing and sometimes off-putting experience. In this blog post, we’re going to unravel the mystery behind why broccoli can sometimes emit a gas-like odor.
We’ll explore the reasons behind this unusual scent and share some tips on how to keep your broccoli fresh and green and not smelling like gas.

Why Does Broccoli Smell Like Gas?
Broccoli itself does not naturally smell like gas. However, certain factors can contribute to broccoli having an unpleasant odor that might resemble the smell of gas. Here are a few possible reasons:
- Sulfur compounds: Broccoli belongs to the cruciferous vegetable family, which contains sulfur compounds. These compounds can produce a distinct aroma when the broccoli is cooked or overcooked. Sulfur compounds are also responsible for the characteristic smell of natural gas.
- Overcooking: If broccoli is cooked for too long or at very high temperatures, it can release sulfurous compounds that contribute to an unpleasant smell. This can be similar to the smell of gas.
- Spoilage: If broccoli is not fresh or has started to spoil, it can emit a foul odor that might be reminiscent of gas. It’s important to check the quality of the broccoli before cooking or eating it.
It’s worth noting that personal perception of smells can vary, and individuals may have different interpretations of the scent.

How To Protect Broccoli From Smelling Bad?
As there are two reasons behind the stinky smell of broccoli, we will give you two solutions to avoid them.
How do I keep broccoli green and fresh?
To keep broccoli green and fresh for as long as possible, here are some tips:
- Purchase fresh broccoli: Choose broccoli with vibrant green color, firm stalks, and compact florets. Avoid broccoli with yellowing or wilting leaves or signs of decay.
- Refrigerate promptly: After purchasing or harvesting broccoli, place it in a plastic bag or loosely wrap it in a damp paper towel. Store it in the vegetable crisper drawer of your refrigerator to maintain a cool and humid environment.
- Maintain proper temperature and humidity: Broccoli is best stored at temperatures around 32 to 40 °F (0 to 4 °C). Avoid storing it near foods that produce ethylene gas, such as apples or bananas, as it can accelerate broccoli’s deterioration. Keeping the humidity level high, around 90-95%, can help retain its freshness.
- Minimize moisture exposure: Moisture can cause broccoli to become slimy and spoil quickly. Keep the broccoli dry by wrapping it in paper towels or placing it in a perforated plastic bag to allow for some airflow.
- Don’t wash before storing: It’s best to avoid washing broccoli before storage, as excess moisture can lead to faster spoilage. Rinse it just before cooking or consuming.
- Use it promptly: Broccoli is at its freshest and most nutritious when consumed soon after purchase or harvest. Aim to use it within 3 to 5 days for optimal quality.
Get rid of the broccoli smell when cooking
Not only does Broccoli smell like farts when it’s spoiled, but it also emits that irritating odor when you overcook it. So, how to cook broccoli without the smell?
- The first way is to keep some concentrated white vinegar near the pot or pan as you cook the broccoli. White vinegar can remove odors in the air very well. However, after cooking, you need to wipe off any traces left behind.
- Another way is to use a slice of sandwich to deodorize. You cut or shred it to the bottom of the pot when cooking; the bread has a very good effect on absorbing moisture and deodorizing.
- When steaming broccoli, place a steaming basket in the bottom of the pot, add water to touch the bottom edge of the basket. You can use an inch or two of water for steaming.
Please keep in mind that you must separate the bunches of broccoli and clean it, like the way you clean cauliflower before steaming. Be mindful that it only requires around three to four minutes for your vegetable to fully cook! No more than four minutes, otherwise, the broccoli will be overcooked – giving that irritating smell and reduction in nutrition.
Frequently Asked Questions
Is broccoli smelling gas still edible?
If broccoli has a strong, unpleasant smell resembling gas or a rotten odor, it is generally an indication that the broccoli is no longer fresh and has started to spoil. In such cases, it is best to discard the broccoli rather than consuming it.
How long can broccoli keep before it smells Like gas?
The shelf life of broccoli can vary depending on various factors such as its freshness at the time of purchase, storage conditions, and how it is handled. Typically, fresh broccoli can be stored in the refrigerator for about 3 to 5 days before it starts to deteriorate and show signs of spoilage.
How do I keep broccoli green and fresh?
To keep broccoli green and fresh for as long as possible, here are some tips:
- Purchase fresh broccoli: Choose broccoli with vibrant green color, firm stalks, and compact florets. Avoid broccoli with yellowing or wilting leaves or signs of decay.
- Refrigerate promptly: After purchasing or harvesting broccoli, place it in a plastic bag or loosely wrap it in a damp paper towel. Store it in the vegetable crisper drawer of your refrigerator to maintain a cool and humid environment.
- Maintain proper temperature and humidity: Broccoli is best stored at temperatures around 32 to 40°F (0 to 4°C). Avoid storing it near foods that produce ethylene gas, such as apples or bananas, as it can accelerate broccoli’s deterioration. Keeping the humidity level high, around 90-95%, can help retain its freshness.
- Minimize moisture exposure: Moisture can cause broccoli to become slimy and spoil quickly. Keep the broccoli dry by wrapping it in paper towels or placing it in a perforated plastic bag to allow for some airflow.
- Don’t wash before storing: It’s best to avoid washing broccoli before storage, as excess moisture can lead to faster spoilage. Rinse it just before cooking or consuming.
- Use it promptly: Broccoli is at its freshest and most nutritious when consumed soon after purchase or harvest. Aim to use it within 3 to 5 days for optimal quality.