Drying & Preserving Herbs & Tea

A good growing season has a happy problem: more than you can eat fresh. The skill that turns a glut into a year-round larder is preserving - and for herbs, tea plants and home-grown mushrooms, that mostly means drying (with a few smart exceptions). Here’s the honest, low-equipment version.

New to this series? “Garden & Kitchen” is about what you do with a harvest once it’s bigger than tonight’s dinner - drying, freezing and storing so nothing is wasted.

The one principle behind all drying

Spoilage needs moisture. Remove the water and most things keep for months. The whole craft is just: dry it fully, then keep it dry and dark. Three routes, easiest first:

Air-drying - free, slow, perfect for herbs and tea. A warm, airy, shaded spot.
Low oven / dehydrator - faster and more reliable, essential for fleshy things like mushrooms.
The freezer - not “drying,” but the best route for things that lose too much when dried.

Herbs

Most culinary herbs dry beautifully and keep their punch for months.

Best dried: the tougher Mediterranean herbs - rosemary, thyme, oregano, sage, bay. Bundle small bunches, hang upside down somewhere warm, airy and out of direct sun, until crisp (a week or two). Strip the leaves and store whole in jars; crush only when you use them.
Better frozen: soft, high-moisture herbs - basil, parsley, coriander, chives, dill - go brown and lose flavour when air-dried. Chop and freeze them in ice-cube trays with a little water or oil instead.
Storage: airtight jars, out of the light. Whole leaves keep flavour far longer than pre-ground.

Tea-garden leaves

If you grow tea-garden plants (mint, lemon balm, chamomile, lemon verbena, true tea and the like), drying is how you build a year’s brews.

Harvest young, healthy leaves or flowers, ideally in the morning once any dew has dried.
Dry gently - air-dry on racks or in loose bundles, or use a dehydrator on low. High heat drives off the aromatic oils you’re actually after, so keep it cool and slow.
Store dried leaves whole in airtight jars away from light; crumble into a pot or infuser when you brew. Most keep their character for many months.
No medical claims: enjoy home-grown teas as the pleasant drinks they are - they’re not medicine.

Mushrooms

If you’ve grown your own edible mushrooms (oyster, shiitake, lion’s mane and friends - or you’ve gathered with an expert), preserving keeps a flush going for months.

Drying is king for many: shiitake, lion’s mane, and especially porcini and black trumpet (if you forage) concentrate and deepen in flavour when dried - often better than fresh. Slice, dry in a dehydrator or low oven until cracker-dry, and store airtight. Rehydrate in warm water before cooking, and save the strained soaking liquid as an intense stock.
Cook-then-freeze suits softer, watery mushrooms (and anything you want to keep its texture): sauté first, cool, then freeze in portions. Freezing raw mushrooms usually disappoints.
Always cook cultivated mushrooms before eating, and never eat any wild mushroom without expert identification - drying a misidentified mushroom doesn’t make it safe.

A quick reference

Crop	Best method	Notes
Mediterranean herbs	Air-dry	Hang bunches; store whole leaves
Soft herbs (basil, parsley)	Freeze	In oil/water cubes; don’t air-dry
Tea leaves & flowers	Air-dry / low dehydrator	Keep it cool to save the aroma
Firm mushrooms (shiitake, porcini)	Dry	Often better than fresh; save soaking liquid
Soft mushrooms	Cook then freeze	Don’t freeze raw

The point of all this

Preserving is the quiet half of growing things: it’s how a busy fortnight of harvest becomes a shelf of jars you reach for all winter. Dry what dries well, freeze what doesn’t, keep it all dark and airtight - and a single good season feeds you long after the plants have gone to sleep.

Want the deeper version? Many of our plant, tea and mushroom guides include a harvest-and-store section for that exact species.