How to Distill Thyme Oil and Hydrosol at Home (Copper Still Method)

To distill thyme at home, steam-distill the flowering tops in a copper still: 400 grams of fresh thyme over 2 litres of water gives you about half a litre of strong thyme hydrosol and, on a good harvest, a thin layer of essential oil. Thyme is one of the more generous herbs, yielding 0.5 to 2.5 percent of fresh weight as oil depending on chemotype and season.

It's also one of the most antimicrobial things you can run through a still, which is why thyme hydrosol has a following as a surface spray and scalp rinse that lavender never quite earns.

TL;DR

• Best for: gardeners with a thyme patch that got away from them.
• Quick answer: steam-distill fresh flowering tops, 90 minutes, collect about 500ml of hydrosol.
• Oil yield: 0.5 to 2.5% of fresh weight, harvested in flower. Check your numbers in the yield calculator.
• Best still size: the 5 Litre for garden batches.

Know your thyme before you load it

Thyme has chemotypes, which means the same species grows different chemistry in different places. The thymol type smells sharp and medicinal and carries the strongest antimicrobial punch. The linalool type is soft, almost lavender-adjacent, and gentler on skin. Rub a sprig and smell your hands. Sharp and phenolic means thymol. Sweet and floral means linalool.

Both distill the same way. The difference shows up in how you use the result: thymol hydrosol leans cleaning spray and foot soak, linalool hydrosol leans facial and hair use.

What you'll need

• 400g fresh thyme in flower, or 250g dried
• 2 litres of distilled or filtered water
• Ice for the condenser
• A 500ml glass bottle
• A copper alembic still, the 5 Litre handles a home patch comfortably

Step by step

1. Harvest in the morning once flowers have opened. Midsummer flowering tops carry the most oil.
2. Load the thyme loosely on the trivet or basket. Packed herb blocks steam and cooks instead of distilling.
3. Add the water, seal the still, and bring it to a gentle simmer.
4. Run cold water or ice on the condenser and collect at a steady drip, around 25 to 40 drops a minute.
5. Stop at roughly 500ml. Collecting past a 1:1 ratio of plant weight to hydrosol just dilutes what you've made.
6. Let the collection settle for 30 minutes. Any oil sits on top; draw it off with a pipette into an amber bottle.

What to do with thyme hydrosol

The thymol type earns its keep as a kitchen counter spray, a foot soak, and a scalp rinse for itchy scalps. The linalool type works as a facial toner for skin that finds tea tree too harsh. Both make a serious herb-garden gift bottled with a handwritten label. Refrigerated in clean glass, expect 12 to 18 months of shelf life.

One line we repeat to buyers: distill the herb the day it's cut. Thyme loses aroma faster than it wilts.

Frequently asked questions

Fresh or dried thyme?

Fresh in flower gives the fullest aroma. Dried works and concentrates by weight, use about two-thirds the amount, but the hydrosol comes out darker in character.

Is thyme oil safe on skin?

Thymol-type oil is a known skin irritant undiluted. Keep it for cleaning blends or dilute it well. The hydrosol is far gentler and the better daily-use product.

How much oil will I actually get?

From 400g of fresh flowering tops, expect a visible film up to a few millilitres on a strong midsummer harvest. Thyme sits at 0.5 to 2.5% of fresh weight. The hydrosol is the dependable product; the oil is the bonus.

Ready to run thyme?

A garden patch fits the 5 Litre still. If you're planning a market table of herb hydrosols, the 5 Gallon runs 4 kilograms at a time. Browse all hydrosol distillers, or see everything a copper still can make.