How Long Does It Take an Avocado to Ripen?
Quick Answer
A firm, unripe avocado takes about 4–7 days to ripen at room temperature. You can speed it up to 1–3 days by placing it in a paper bag with a banana or apple.
Duration by Type
Traps ethylene gas to speed ripening.
Fastest method; added fruit boosts ethylene.
Quick Answer
Left on the counter, a hard, unripe avocado usually ripens in 4–7 days. Placing it in a paper bag with a banana or apple traps ethylene gas and cuts the time to about 1–3 days. Once ripe, avocados stay at peak quality for only 2–3 days before over-ripening.
Avocado Ripening Times by Method
| Method | Time to Ripen |
|---|---|
| Room temperature (open counter) | 4–7 days |
| Paper bag alone | 2–4 days |
| Paper bag with banana or apple | 1–3 days |
| Refrigerated (to slow ripening) | Pauses ripening; adds days |
| Warm spot (~70–75°F) | Faster within the range |
How to Tell When an Avocado Is Ripe
- Gentle squeeze — A ripe avocado yields to gentle pressure without feeling mushy.
- Color (Hass) — Skin darkens from green to nearly black as it ripens.
- Stem test — Flick off the small stem; green underneath means ripe, brown means overripe.
- Feel — Firm means unripe; soft with slight give means ready; dented or squishy means overripe.
Why the Paper Bag Trick Works
Avocados release ethylene, a natural ripening gas. A paper bag concentrates that gas around the fruit, speeding ripening. Adding a banana or apple—both strong ethylene producers—accelerates it even more. Plastic bags trap moisture and can cause rot, so paper is best.
Factors That Affect Ripening Speed
- Starting ripeness — Rock-hard avocados take longest.
- Temperature — Warmer rooms ripen fruit faster; cold slows it.
- Ethylene exposure — Nearby bananas or apples speed things up.
- Variety — Hass avocados change color; other types stay green when ripe.
- Air circulation — Enclosed spaces concentrate ripening gases.
How to Slow Down or Store Ripe Avocados
- Refrigerate when ripe — Move a ripe avocado to the fridge to hold it for 2–3 extra days.
- Keep unripe ones out — Don't refrigerate hard avocados; cold stalls ripening.
- Store cut halves properly — Leave the pit in, brush with lemon juice, and wrap tightly to slow browning.
- Freeze the flesh — Mash or slice ripe avocado and freeze for up to several months.
Quick Tips for Perfect Avocados
- Buy a mix of ripe and firm avocados so you have some ready now and some later.
- To ripen fast for guacamole, use the bag-and-banana method a day ahead.
- If you accidentally cut one too early, the paper-bag trick won't fully ripen it—use it in cooked dishes instead.
- Check ripening fruit daily, since avocados can go from perfect to overripe within a day.
Pro Tips
Put an avocado in a paper bag with a banana or apple to ripen it in as little as 1–2 days.
— California Avocado Commission
Once ripe, move avocados to the fridge to hold them at peak quality for 2–3 extra days.
— University of California Postharvest Technology Center
Flick off the small stem to check ripeness—green underneath is ripe, brown is overripe.
— California Avocado Commission