Clean off dirt with water and a nail brush. After you’ve collected some truffles, bring them to a sink and start running some cold water. Hold the truffles underneath the water and use a nail brush or toothbrush to carefully remove any dirt that’s on the outside of the truffles.
Store your truffles in paper in the refrigerator. Wrap your clean truffles in kitchen paper or put them in a brown paper bag and roll the bag up tight. Keep your truffles fresh by storing them this way in your refrigerator for up to 10 days.
Don’t wrap your truffles in plastic.
Store your truffles in the freezer long-term. If you’re hoping to preserve your truffles for longer than about 10 days, consider storing them in the freezer. You can either put them in a plastic bag, squeeze all of the air out, and then seal them well, or you can grate the truffles, mix them in with butter, and freeze the butter. Either way, the truffles will stay good for up to 6 months if kept frozen
When you’re ready to cook and eat the truffles, it’s best to start cooking them while they’re still frozen, instead of thawing them out first.
Sell your truffles to upscale restaurants. Truffles are scarce and difficult to find on a consistent basis because they aren’t grown commercially. Truffles are a popular culinary delicacy that is highly demanded and desired in expensive, upscale restaurants. Immediately after you find truffles, email and/or call the upscale restaurants in nearby cities to see if the chefs of these restaurants are interested in purchasing yours.