Pop it in the oven at 105°F (40°C) until you’re sure it’s completely dry. Pick through the fresh mint, removing damaged leaves and tough stems and rinse. Remove from the oven and allow the pan to cool. If you pluck the leaves off first, the mint can dry a little quicker. Microwave for 30 seconds at a time until they are brittle, paying close attention for signs of burning. Place the leaves on a cookie sheet in a single layer. Even better, it only takes two to three minutes to achieve your desired results. Moist, fleshy herbs such as mint and basil won't dry easily in the microwave unless they are already partly dried. It’s important to harvest herbs at the right time. For this method, remove individual mint leaves, while leaving the young branches intact with the leaves. But leave small, feathery herbs, like dill and fennel, on the stalks until drying is complete.Tarragon, bay, mint, lem… Check your mint after 2 hours - it should be dry; if not, cook an extra 20-30 minutes until completely dry. Pluck the leaves off the stem and lay them between paper towels so that no two leaves are touching. Once your mint is rinsed and dried, lay it in a thin layer over a lined baking sheet. It’s best to pick and prepare one variety of herb for drying at a time.Discard any damaged leaves. They should be picked before the flowers develop. Lay your mint out in a single layer on your cookie sheet; place in the oven for a minimum of 2 hours. Oven Drying . Herbs with soft, juicy leaves need to be dried quickly or they will grow mold. The leaves of herbs such as sage, mint, rosemary, thyme and parsley, stripped from their stalks, are perfect for oven drying. Herbs will mold quickly if exposed to moisture. Drying bay leaves in a microwave oven is recommended if you only have a few pieces to dry. Pat them dry with a paper towel. Requiring less time, this approach is excellent, if you don’t have time and want to make dried mint leaves within a few days. Warm them in the oven at 180 F or 80 C for two hours, then check them to see if they've dried out completely. You can leave it on the stem if pressed for time. Speaking on how to dry mint leaves in microwave oven, it is a shortcut method of air drying. Strip large-leaved herbs, such as sage and mint, from their stalks. Lay your mint out in a single layer on your cookie sheet; place in the oven for a minimum of 2 hours. Don't have a gadget to dry herbs? This kept the leaves whole and when it was taken from the stem after drying the leaves become crushed. For either material, spread small leaves or pieces of herbs out between two dry paper towels. Remove the mint leaves from the stems and crumble into a clean, dry jar. Oven Drying. Carefully remove the leaves from the stems when the mint is dry. Of all herbs, I figured that mint had to be one of the easiest to dry. Check your mint after 2 hours - it should be dry; if not, cook an extra 20-30 minutes until completely dry. Silicone mats also work very well. Dry moist or soft herbs in a low temperature oven. Drying bay leaves in a microwave oven. Air-drying herbs is ideal for herbs with larger leaves, like mint, basil, oregano, and marjoram. You may stack up to five layers of leaves if you need to, alternating between paper towels and herbs. Remove the mint leaves from the stems and crumble into a clean, dry jar. No problem! Sort of like dirty dishwater without any flavour. Freezing Mint Ice Cube Method. Space out leaves on a muslin-covered tray in an oven set to the lowest possible temperature (higher temperatures diminish the fragrant essential oils) with the door ajar to allow moisture to escape. Drying Herbs in the Oven. Remove from the oven and allow the pan to cool. Your regular oven can also do the job.