
Reishi mushrooms are hard, woody fungi that are typically used to make tea and tinctures. They are believed to have medicinal properties and have been used for thousands of years by traditional healers. To preserve their shelf life, they need to be dried soon after harvesting. This guide will explore the different methods of drying reishi mushrooms, including using an oven, dehydrator, or the sun. It will also discuss the ideal way to store dried reishi mushrooms to maintain their quality.
How to Dry Reishi Mushrooms
| Characteristics | Values |
|---|---|
| Cleaning | Rinse in water, rubbing to remove dirt and debris. Avoid soaking. |
| Cutting | Cut into thin strips or small pieces. Quarter-inch slices are recommended. |
| Oven drying | Use the lowest temperature setting. Prop the door open with a wooden spoon or crushed pop can to allow airflow. |
| Oven drying temperature | 150-170 Fahrenheit (65-75 Celsius). |
| Oven drying time | 1-2 hours. Check after this time, and continue drying in 30-minute intervals until completely dry. |
| Dehydrator | Countertop dehydrators use heat and airflow. Food dehydrators are preferred for even drying. |
| Dehydrator temperature | 110 Fahrenheit is recommended. |
| Dehydrator time | 4-6 hours. Antler Reishi may take 2-3 hours. Check every 30 minutes after this time until completely dry. |
| Sun drying | Lay slices in a sunny, dry spot. Use a basket or mat to allow airflow. Turn slices occasionally. |
| Sun drying time | Up to 1-2 days. |
| Storage | Store dried Reishi in an airtight container with silica gel packets or a desiccant pack. Keep in a cool, dry, dark place, out of direct sunlight. |
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What You'll Learn

Preparing reishi mushrooms for drying
After cleaning, the mushrooms need to be cut into thin strips or small pieces. This helps them dry evenly and thoroughly, as whole mushrooms may be too thick to dry properly. Antler reishi, a cultivated variety, can simply be broken up by hand. For other varieties, use tools like garden snips or a knife to cut the mushrooms into quarter-inch slices.
Once cut, the mushrooms are ready for the drying process. There are several methods to choose from, including using a food dehydrator, an oven, or the sun. Each method varies in terms of time and equipment requirements.
Using a food dehydrator is a popular choice as it provides even drying and doesn't occupy oven space. Set the dehydrator to the recommended temperature, usually around 110 degrees Fahrenheit, and arrange the mushroom slices on the trays, allowing space for airflow. The drying time varies, but it typically takes 4-6 hours, and you should check the mushrooms periodically to ensure they are completely dry.
If you opt for oven drying, preheat your oven to a low temperature, ideally between 150-170 degrees Fahrenheit (65-75 degrees Celsius). Place the mushroom slices in a single layer on a baking sheet and put them in the oven. After an hour, flip the slices over and bake for another hour. Check if the mushrooms snap when bent; if not, return them to the oven for additional 30-minute intervals until they are fully dry.
Drying in the sun is another option, especially if you live in a sunny and dry climate. Place the rinsed and sliced mushrooms in a sunny spot, either indoors or outdoors, ensuring good airflow to speed up the process. This method can take up to a day or two, and you must protect the mushrooms from moisture, insects, and other animals.
Once the mushrooms are completely dry, they can be stored in airtight containers with silica gel or desiccant packs to maintain dryness. Store them in a cool, dry, and dark place, out of direct sunlight, to preserve their quality and prevent mould.
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Drying reishi mushrooms in the oven
Reishi mushrooms are known for their medicinal qualities and bitter taste. They are often consumed in the form of tea, tinctures, or powder. Drying reishi mushrooms is a crucial step to prevent moulding and ensure their shelf life. Here is a comprehensive guide to drying reishi mushrooms in the oven:
Preparing the Reishi Mushrooms
Before placing the reishi mushrooms in the oven, it is essential to clean and slice them thinly. Rinse the mushrooms thoroughly in cold water. You can use a pair of garden snips or scissors to chop them into smaller pieces, which will facilitate even drying.
Oven Temperature and Settings
Set your oven to a low temperature, ideally below 140 degrees Fahrenheit. This temperature setting is crucial to preserving the nutritional and medicinal properties of the mushrooms. Higher temperatures may damage the beneficial compounds in the mushrooms.
Drying Process
Place the thinly sliced reishi mushrooms on a baking tray or oven-safe dish. Ensure that the mushrooms are spread out in a single layer, avoiding any overlap. Put the tray in the preheated oven and keep the oven door slightly ajar to maintain ventilation and air circulation.
The drying time will vary depending on the thickness of the slices and the humidity in your oven, but it typically takes several hours. Check the mushrooms periodically to ensure they are drying evenly and to prevent over-drying, which can affect their texture and taste.
Storing Dried Reishi Mushrooms
Once the mushrooms are completely dry, let them cool down to room temperature. Then, store them in airtight glass containers or jars. You can also add silica gel packets or desiccant packs to the jars to ensure the mushrooms stay absolutely dry and to prevent mould formation. Store the dried reishi mushrooms in a cool, dry, and dark spot, such as a pantry or cabinet, away from direct sunlight.
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Using a food dehydrator
Reishi mushrooms have a tough, woody texture, so they need to be dried before they can be used in teas and tinctures. Using a food dehydrator is an effective way to dry your reishi mushrooms.
First, you need to clean the mushrooms. You can do this by gently wiping them with a damp cloth or a soft vegetable brush. You can also use a mushroom cleaner. Avoid using water, as reishi mushrooms are water-absorbent and this can affect their potency.
Next, slice the mushrooms into quarter-inch slices. The thicker the slices, the longer they will take to dry. You can use a knife or a meat slicer to cut them.
Arrange the slices on the trays of your dehydrator, leaving space between the slices. This allows for the airflow that will help dry your mushrooms. Set the dehydrator to 110 degrees Fahrenheit, and let it run until the mushroom slices are completely dry. This can take 4-6 hours, but you should check after 3 hours to ensure they are drying evenly. Antler reishi can be dried in 2-3 hours. If your mushrooms are not dry after this time, check on them every half an hour until they are.
Once your reishi mushrooms are dry, allow them to cool completely before storing them. Transfer the mushrooms to glass jars and cover them with tight-fitting lids. Label the jars with the contents and the date of drying. Store the jars away from direct light or heat.
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Sun-drying reishi mushrooms
To sun-dry reishi mushrooms, start by rinsing the mushrooms and slicing them into quarter-inch slices. It is important not to soak the mushrooms, as this can degrade them and result in longer drying times. Lay the mushroom slices out in a sunny spot, either indoors or outdoors. If drying outdoors, be sure to protect the mushrooms from moisture, insects, and other animals. Using a basket or woven mat will allow air to move underneath the mushroom pieces, helping them to dry more evenly. Avoid stacking the mushrooms if using a basket, and if using a baking sheet, turn the slices occasionally.
Once the mushrooms are completely dry, allow them to cool before storing them in an airtight container with silica gel packets in a cool, dry spot, out of direct sunlight. This will help to ensure the mushrooms stay absolutely dry and avoid the risk of mould.
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Storing dried reishi mushrooms
Firstly, ensure the mushrooms are completely dry. Mushrooms dried in a dehydrator or oven may only need a few hours to a day to dry. However, air-dried mushrooms can take up to a week or two to fully dry, depending on humidity levels and the size of the mushrooms. It is crucial to protect them from moisture, insects, and animals during this time.
Once the mushrooms are crisp and dry, bring them inside and place them in a sealed, airtight container. You can use a desiccant like silica gel packs to ensure the mushrooms remain dry, and an oxygen absorber can also be added to the container to extend their shelf life.
Store the container in a cool, dry, and dark place, away from direct sunlight. Sunlight can damage the mushrooms, and warmth can affect their potency and nutritional value. Stored correctly, dried reishi mushrooms can last for up to two years, and they will retain their medicinal properties and nutritional value.
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Frequently asked questions
Rinse your reishi in water, rubbing to loosen dirt and debris. Be careful not to soak the mushrooms as this can degrade them and increase drying time. You can then slice the mushrooms into thin strips or small pieces, no thicker than a quarter of an inch.
There are several ways to dry reishi mushrooms. You can use a food dehydrator, which dries the mushrooms evenly and is preferred. You can also dry them in the oven on a low heat setting (65-75°C) for 1-2 hours. If you live in a sunny, dry climate, you can dry them in the sun, which can take up to a day or two.
Store dried reishi mushrooms in an airtight container in a cool, dry spot, out of direct sunlight. You can also freeze the mushrooms after they are dried to prevent long-term storage problems due to insect damage.























