How to Preserve Mint Leaves in the Fridge

By James Wilson · January 24, 2026

To preserve mint leaves in the fridge and maintain their freshness for up to 2–3 weeks, store them unwashed in a glass of water covered loosely with a plastic bag, or wrap them in a slightly damp paper towel and place inside an airtight container. Avoid sealing dry leaves in plastic bags, as moisture buildup accelerates spoilage.

Why Proper Mint Storage Matters

Mint is a delicate herb with high moisture content and volatile essential oils that degrade quickly when exposed to air, heat, or improper humidity. Improper storage leads to wilting, browning, and mold—common issues that reduce both shelf life and flavor potency.

Common Problems with Mint Storage

Leaves turning black or slimy within days
Drying out due to low humidity
Mold growth from trapped moisture
Losing aroma and taste rapidly

Best Methods to Preserve Mint Leaves in the Fridge

Using the right preservation technique can extend the freshness of mint leaves significantly. Below are two proven methods backed by food science and culinary experts.

Method 1: Water + Plastic Bag (Ideal for Short-Term Use)

Similar to storing fresh-cut flowers:

Trim the stems slightly.
Place mint stems in a glass or jar with 1–2 inches of water.
Cover loosely with a plastic produce bag.
Secure with a rubber band or leave open at the top for airflow.
Store in the high-humidity crisper drawer.

This method keeps mint hydrated and crisp for 14–21 days.

Method 2: Damp Paper Towel + Airtight Container (Best for Pre-Washed Leaves)

Recommended if you plan to use mint within 10–14 days:

Gently wash and completely dry leaves (or keep unwashed until use).
Wrap in a slightly damp paper towel.
Place inside a resealable glass or BPA-free plastic container.
Store in the refrigerator’s main compartment away from strong-smelling foods.

What Not to Do When Storing Mint

Do not seal wet leaves in closed plastic bags—this encourages condensation and mold.
Avoid freezing unless preparing for long-term use (see FAQ).
Never store near ethylene-producing fruits like apples or bananas.
Don’t wash before storage unless drying thoroughly afterward.

Comparative Shelf Life of Mint Storage Methods

Storage Method	Average Shelf Life (Days)	Visual Freshness Score* (1–5)	Flavor Retention (%)	Mold Risk
Unwashed in water + bag	18	4.7	92%	Low
Damp paper towel + container	14	4.3	85%	Medium
Dry plastic bag (no prep)	5	2.1	60%	High
Freezing in oil	6 months	3.0	78%	None
Room temperature in water	3	2.5	50%	Medium

Table data source:1, 2

The data shows that storing mint in water with a loose plastic cover maximizes shelf life and preserves sensory quality. Refrigerated methods outperform room temperature storage significantly, with nearly 6x longer usability and superior flavor retention.

Frequently Asked Questions About Preserving Mint Leaves

Can I freeze mint leaves for later use?

Yes, freezing mint leaves is effective for long-term storage. For best results, chop the leaves and freeze them in ice cube trays filled with water or olive oil. Once frozen, transfer cubes to a sealed freezer bag. They’ll last up to 6 months and are ideal for cooking or drinks.

Should I wash mint before refrigerating?

It's best to avoid washing mint before storage unless you dry it thoroughly. Excess moisture promotes mold. If washed, pat leaves completely dry with a clean towel or use a salad spinner before using either the water-jar or paper-towel method.

How do I revive wilted mint leaves?

Submerge wilted mint in a bowl of ice-cold water for 15–30 minutes. The cold temperature helps rehydrate cells and restore crispness. Afterward, pat dry and use immediately or return to proper storage.

Can I store mint with other herbs?

You can store mint with other hardy herbs like rosemary or thyme, but avoid storing it with delicate herbs like basil or cilantro, which have different humidity needs. Mint’s strong aroma may also affect more sensitive herbs over time.

Does storing mint in airtight containers cause sweating?

Yes, if the mint is damp or freshly washed without thorough drying, airtight containers can trap moisture and lead to condensation (“sweating”), increasing mold risk. Always ensure leaves are dry or use a slightly damp paper towel to regulate humidity safely.