Preserving Mushrooms: 4 Techniques to Extend Their Shelf Life

Preserving Mushrooms: 4 Techniques to Extend Their Shelf Life

Imagine the disappointment of seeing your freshly harvested or purchased mushrooms go bad in just a few days. The good news is that there are several effective methods to preserve these flavorful fungi, allowing you to enjoy them for an extended period. In this article, we will explore four easy techniques for preserving mushrooms: drying, freezing, pickling/fermenting, and canning. By mastering these methods, you can reduce food waste, ensure a year-round supply of mushrooms, and elevate your culinary creations.

Best Method for Storing Mushrooms for 3-5 Days

Before delving into the preservation techniques, let's first understand how to store mushrooms for short-term use. If you plan to consume your mushrooms within a week, the key is to keep them cool and dry. Store-bought mushrooms should be removed from their packaging and placed in a brown paper bag. Avoid washing the mushrooms and store them in the refrigerator away from strong-smelling foods to prevent flavor absorption. If a paper bag is unavailable, wrapping the mushrooms in a paper towel and storing them in a bowl can also extend their shelf life. Remember to use sliced mushrooms within three days and whole mushrooms within a week for optimal freshness.

Drying Mushrooms

Drying mushrooms is a popular preservation method that enhances their flavor and versatility. Varieties like shiitake, morels, black trumpets, and porcini rehydrate well, while oysters and chanterelles are better suited for grinding into mushroom powder. To dry mushrooms, you can choose between air-drying in the sun, using a dehydrator, or a conventional oven. Dehydrating mushrooms in a dehydrator involves cleaning, slicing, preheating the device, arranging the slices on trays, and allowing them to dry for 6-8 hours until brittle. Alternatively, drying mushrooms in an oven requires similar steps but with a longer drying time of 6 to 12 hours at temperatures between 120 and 150 degrees Fahrenheit.

Freezing Mushrooms

Freezing mushrooms is another convenient preservation method that extends their shelf life for several months. Frozen mushrooms retain their texture and flavor, making them suitable for various dishes like stir-fries, soups, and stews. To freeze mushrooms, clean and slice them before spreading them in a single layer on a baking sheet. Flash-freeze the mushrooms before transferring them to a freezer-safe container or bag for long-term storage. Remember to label the container with the date of freezing for easy reference.

Pickling/Fermenting Mushrooms

Pickling or fermenting mushrooms is an excellent way to add tanginess and complexity to your dishes. This preservation method involves brining or fermenting mushrooms in vinegar, salt, and spices to create flavorful and shelf-stable condiments. Choose firm varieties like button mushrooms or shiitake for pickling, ensuring they are thoroughly cleaned and trimmed before the process. Experiment with different pickling spices and flavors to customize your pickled mushrooms to suit your taste preferences.

Canning Mushrooms

Canning mushrooms is a traditional preservation technique that involves packing mushrooms in jars and processing them in a water bath or pressure canner. This method requires strict adherence to canning guidelines to ensure the safety and quality of the preserved mushrooms. Select fresh, high-quality mushrooms, clean them thoroughly, and pack them in sterilized jars with the addition of a brine or liquid. Follow the recommended canning process and storage instructions to enjoy your canned mushrooms throughout the year.


Preserving mushrooms is a rewarding way to make the most of these delightful fungi and minimize food waste. By utilizing drying, freezing, pickling/fermenting, and canning techniques, you can extend the shelf life of your mushrooms, expanding your culinary repertoire and enjoying their flavors year-round. Experiment with different preservation methods to discover new ways to incorporate mushrooms into your cooking and elevate your dishes.

Take the Next Step

Ready to explore the world of mushroom preservation? Try out one of the techniques mentioned in this article and savor the rewards of enjoying fresh mushrooms long after their harvest. Share your experiences with us and discover the endless possibilities of culinary creativity with preserved mushrooms.

Back to blog

Leave a comment