How to Keep Mint Fresh in the Fridge for Weeks

By Marcus Williams · January 24, 2026

To keep mint fresh in the fridge, store it like a bouquet in a glass of water with a loose plastic bag over the leaves, changing the water every 2–3 days. This method maintains hydration and airflow, preserving freshness for up to 2 weeks—significantly longer than dry storage.

Why Mint Wilt Quickly in the Fridge

Mint is a delicate herb that loses moisture rapidly due to its high surface-area-to-volume ratio. Cold temperatures in the refrigerator can accelerate wilting if not managed properly. The key factors contributing to rapid spoilage include:

Exposure to dry air inside the fridge
Temperature fluctuations from frequent door opening
Lack of humidity control
Direct contact with cold surfaces

Best Methods to Store Mint in the Fridge

1. Water + Plastic Bag Method (Recommended)

This approach mimics a mini greenhouse, maintaining optimal humidity and oxygen levels.

Trim the stems by ¼ inch.
Place mint in a glass or jar with 1–2 inches of water.
Cover loosely with a plastic produce bag.
Secure with a rubber band or twist tie.
Store in the crisper drawer at 32–40°F (0–4°C).
Change water every 2–3 days.

2. Damp Paper Towel Method

Suitable for short-term storage (up to 7 days):

Wrap mint in a slightly damp paper towel.
Place inside a resealable plastic bag or airtight container.
Store in the high-humidity crisper drawer.

3. Vacuum Sealing (Advanced)

For extended preservation (up to 3 weeks), vacuum sealing removes excess oxygen. However, this method risks crushing tender leaves unless used gently.

Comparative Freshness Retention of Storage Methods

Storage Method	Average Shelf Life (Days)	Weight Loss (%)	Color Retention (Scale 1–5)	Essential Oil Preservation (%)
Water + Plastic Bag	14	8.2	4.6	92
Damp Paper Towel	7	14.5	3.8	76
Open Container (No Humidity)	3	28.7	2.1	54
Vacuum-Sealed	21	5.3	4.8	95

Table data source:1, 2

The data shows that storing mint in water with a plastic cover preserves over 90% of essential oils and limits moisture loss to under 10%. Vacuum sealing offers the longest shelf life but requires specialized equipment. Open containers result in rapid degradation within three days.

Tips for Selecting and Preparing Mint for Storage

Choose bright green, firm stems without yellowing or black spots.
Avoid pre-washed or packaged mint unless used immediately.
Do not wash mint until ready to use—moisture accelerates mold growth.
If washing is necessary, dry thoroughly using a salad spinner or air-dry on towels.
Remove any damaged or wilted leaves before refrigeration.

Freezing Mint for Long-Term Use

When refrigeration isn’t sufficient, freezing preserves mint for up to 6 months:

Chop leaves and freeze in ice cube trays with water or olive oil.
Alternatively, freeze whole leaves on a tray before transferring to a freezer bag.
Label and date all frozen herbs.

Note: Frozen mint loses crispness but retains flavor for cooking and beverages.

Frequently Asked Questions About Keeping Mint Fresh

How long does mint last in the fridge?

When stored properly in a glass of water covered loosely with plastic, mint can stay fresh for up to 14 days. Using a damp paper towel method extends freshness for about 7 days.

Should I wash mint before storing it?

No, avoid washing mint before refrigeration. Excess moisture promotes mold and bacterial growth. Wash only when ready to use.

Can I store mint at room temperature?

Yes, but only for 1–2 days. Place stems in water like cut flowers, away from direct sunlight. For longer storage, refrigeration is superior.

Why does my mint turn black in the fridge?

Black spots indicate moisture buildup, chilling injury, or microbial growth. Ensure proper airflow, change water regularly, and avoid overcrowding leaves.