Yes, you can dry purslane, and it’s one of the best ways to preserve this nutrient-dense plant for year-round use. The thick, succulent stems and leaves contain a lot of moisture, so drying takes a bit longer than with thinner herbs, but the process works well with a food dehydrator, an oven, or plain sunlight. The key is keeping temperatures low to preserve color, flavor, and nutritional value.
Confirm You Have Purslane, Not Spurge
Before you dry anything, make sure you’ve actually harvested purslane and not spotted spurge, a toxic lookalike that grows in the same environments. The fastest test is to snap a stem. Purslane produces clear, watery moisture at the break point. Spurge immediately forms a visible drop of milky white sap without any squeezing. Beyond the sap test, purslane has fleshy, hairless stems that can grow as thick as your pinky finger. Spurge stems are thin (no thicker than a toothpick), tough, and covered in fine hairs. If you see milky sap or hairy stems, discard the plant.
Prep Work Before Drying
Wash the purslane thoroughly in cool water to remove dirt and insects, then shake off excess moisture or pat it dry with a towel. Trim away any roots and discolored or damaged sections. You can dry whole small sprigs, or separate the leaves and tender stem tips from the thicker lower stems, which take longer to dry because of their higher water content.
Blanching before drying is optional but has a long history. The Chinese Pharmacopoeia recommends steaming or blanching purslane before sun-drying. A quick dip in boiling water (keeping the temperature above 90°C) for 30 to 60 seconds inactivates enzymes that cause flavor and color deterioration during storage. The tradeoff is that blanching can wash out some water-soluble nutrients, so if you plan to use your dried purslane within a few months and store it well, skipping this step is reasonable.
Food Dehydrator Method
A dehydrator gives you the most consistent results. Set the temperature to 45°C (about 113°F). Spread the purslane in a single layer on the trays, leaving space between pieces for airflow. At this temperature, expect the process to take 8 to 10 hours. The purslane is done when the leaves are brittle and the stems snap cleanly rather than bending. Research on leafy vegetable dehydration found that 45°C produced the most attractive color retention compared to higher temperatures.
Oven Drying Method
If you don’t have a dehydrator, your oven works, though it requires more attention. Set it to the lowest temperature available, ideally around 50°C (122°F). Many home ovens bottom out at 170°F (about 77°C), which is higher than ideal. If that’s your situation, prop the oven door open slightly with a wooden spoon to reduce the effective temperature and allow moisture to escape.
Spread the purslane in a thin, even layer on a parchment-lined baking sheet. Check every 30 to 45 minutes, rotating the tray and flipping pieces as needed. At 50°C, purslane retains significantly more of its beneficial plant compounds, losing only about 34% of its phenolic content compared to much steeper losses at 60°C or 70°C. Higher temperatures also cause browning: leaves dried at 70°C shift noticeably from green toward brown due to non-enzymatic browning reactions. Keeping the temperature low preserves both the color and the nutritional profile.
Sun Drying Method
Sun drying is the oldest preservation technique for purslane and still works well in warm, dry climates. Spread the washed purslane in a single layer on a clean screen, drying rack, or parchment-covered tray and place it in direct sunlight. In research trials conducted at an average room temperature of about 25°C, sun drying took approximately one week to complete. Hot, arid conditions with low humidity will shorten that timeline, while humid climates can extend it or invite mold.
Bring the trays indoors at night to avoid dew re-moistening the leaves. If insects are a concern, cover the purslane with a layer of cheesecloth or a fine mesh screen that still allows airflow. Flip the pieces once daily for even drying.
How to Tell When It’s Fully Dry
Purslane’s thick, succulent tissue holds more water than typical leafy herbs, so don’t stop too early. Properly dried leaves should crumble easily between your fingers. Stems should snap, not bend. If any piece still feels leathery or pliable, it retains moisture that can lead to mold in storage. When in doubt, give it another hour or two in the dehydrator or oven.
Storing Dried Purslane
Once fully dried, let the purslane cool completely to room temperature before storing. Any residual warmth creates condensation inside a sealed container, which reintroduces moisture. Pack the dried purslane into airtight glass jars or resealable bags, pressing out as much air as possible. Store in a cool, dark place. Light and heat degrade the plant’s beneficial compounds over time. Properly dried and sealed purslane keeps well for six months to a year, though flavor and color are best within the first few months.
Check your jars after the first day or two. If you see any condensation on the inside of the glass, the purslane wasn’t dry enough. Spread it back out and continue drying before resealing.
Using Dried Purslane
Dried purslane works well crumbled into soups, stews, and sauces, where it rehydrates during cooking and adds a mild, slightly tangy flavor. You can also grind it into a powder and mix it into smoothies, dips, or seasoning blends. To rehydrate it on its own, soak the dried pieces in warm water for 15 to 20 minutes. The texture won’t fully return to the crisp succulence of fresh purslane, but it softens enough to work in cooked dishes. Rehydrated purslane is closer in texture to cooked spinach than to its raw form.