The Complete Herbal Brewing Course
A free, self-paced course in modules — from your first infusion to confident blending and tasting.
Welcome to the Complete Herbal Brewing Course — a free, self-paced programme that takes you from your very first cup of chamomile all the way to confidently building your own blends and tasting like an experienced herbalist.
The course is structured into six modules, each designed to stand alone but reward sequential reading. You can move through them in an afternoon or return to individual modules whenever a specific question comes up. There are no sign-ups, no certificates and no paywalls — just clear, well-organised knowledge arranged in the order that makes the most sense to learn it.
Each module builds directly on the last. By the time you reach Module 6, you will have a working vocabulary for describing what is in your cup, a reliable brewing process you have personalised to your own taste, and the foundation to explore the wider world of herbal infusions with genuine confidence.
Ready? Start with Module 1 below — or jump to whichever module matches where you are right now. Our brewing basics guide is a useful companion throughout.
Traditional uses
The idea of a structured herbal curriculum is older than you might expect. Medieval monastic gardens were teaching institutions as much as they were working herb plots. Novice monks and nuns learned which plants to grow, how to harvest them at peak potency, how to dry and store them correctly, and how to prepare them for different purposes. The monastery garden was, in essence, the first herbal brewing course.
Apothecaries of the sixteenth and seventeenth centuries formalised this knowledge further, publishing "herbals" — illustrated encyclopaedias of botanical knowledge that described each plant, its cultivation, its preparation and its historical uses. Books like John Gerard's Herball (1597) and Nicholas Culpeper's Complete Herbal (1653) were written explicitly to democratise plant knowledge and bring it out of the monastery and into the ordinary household.
The twentieth century saw an enormous shift toward pharmaceutical medicine and a corresponding decline in everyday plant knowledge. But the last two decades have seen a remarkable revival. Today, millions of people are rediscovering the pleasure of brewing their own herbal infusions — and finding that the knowledge is not difficult to acquire once it is organised well.
This course is our contribution to that revival. It synthesises traditional wisdom, modern botanical understanding and practical brewing technique into a sequence that respects the complexity of the subject while remaining completely accessible to the absolute beginner.
What the science says
Across the six modules, we reference science where it is relevant and honest to do so. That means being clear about what research actually shows — and equally clear about its limits. A great deal of popular writing about herbal tea presents preliminary, extract-based or small-scale research as settled fact. We do not do that here.
What science reliably confirms is that different plants contain different chemical compounds, and that hot water extracts many of those compounds into a drinkable form. Menthol from peppermint, gingerols from ginger, apigenin from chamomile — these are real, measurable substances with documented properties. What is far less certain is how those properties manifest in an ordinary cup of tea at ordinary concentrations.
Throughout the course, we follow a simple rule: describe what is known, acknowledge what is uncertain, and never make medical claims. Herbal teas are drinks — wonderful, historic, complex drinks — and understanding them clearly is more interesting than exaggerating them. Our disclaimer explains this philosophy in full.
Educational only. This section summarises traditional context and general, science-aware information. It is not medical advice and does not describe treatment. See our disclaimer.
Step by step
Module 1 — Start here. Read the overview of what herbal tea is, then use the herbal tea finder to identify the herb that most appeals to you right now. Buy a small quantity and brew your first cup using the basic method in brewing basics.
Module 2 — Fill a kettle with fresh, filtered water and pay attention to what temperature it reaches. Try the same herb at two different temperatures — for example, chamomile at 95°C and at full boiling — and notice the difference in flavour and aroma. This single exercise teaches you more than a page of explanation.
Module 3 — Compare a tea-bag version of your chosen herb with a loose-leaf version side by side. Smell them both before brewing. Notice which has a stronger, more complex aroma. Brew both using the same method and taste them together.
Module 4 — Try cold-brewing your herb overnight: place 2 teaspoons of dried herb in 300ml of cold filtered water, cover and refrigerate for 8–12 hours. Taste the result alongside a hot-brewed cup of the same herb. Note what is different.
Module 5 — Brew a cup and practise describing it out loud or in writing before you add anything to it. Work through the flavour categories in the flavour profiles guide: is it floral? Earthy? Citrusy? Sweet? Bitter? The vocabulary becomes natural quickly with practice.
Module 6 — Build your first blend: choose a base herb (rooibos, lemon balm or chamomile), add a secondary herb (peppermint, ginger or hibiscus) at half the quantity, and finish with a small pinch of an accent herb (lavender, cinnamon or rose petal). Brew, taste and adjust. Write it down using the journal so you can repeat and refine it.
Beginner advice
If you are a complete beginner, Module 1 is written specifically for you — no prior knowledge assumed. If you have already brewed a few cups and want to sharpen your technique, Module 2 and Module 3 will give you the most immediate lift.
Do not feel you need to absorb everything in one sitting. The best approach is to read a module, then brew a cup with what you have learned. Practical experience accelerates understanding far faster than reading alone.
Keep a simple tasting note — even just a sentence or two on your phone — as you work through each module. You will notice your palate developing quickly once you give it a little attention. Our herbal tea journal tool is free and works perfectly alongside this course.
Interesting facts
- Herbal brewing has been practised on every inhabited continent — the impulse to steep plants in hot water appears to be a human universal.
- Water temperature affects which compounds are extracted: cooler water tends to pull out more delicate aromatic molecules, while near-boiling water extracts deeper bitter and earthy notes.
- The ratio of herb to water matters as much as steep time — a weak brew with correct timing still tastes thin; a well-measured brew at the right temperature rarely disappoints.
- Cold brewing herbal tea — leaving herbs in cold water for several hours — produces a softer, less bitter extraction and can reveal flavour notes that heat suppresses.
- Most herbal blends follow a three-part structure: a base herb for body and volume, a secondary herb for flavour character, and an accent herb for aroma and finish — a framework Module 6 explores in practical detail with worked examples.
- The herbal tea market has diversified significantly since 2015, with single-origin, small-batch and certified-organic products now widely available at price points to suit every budget.
Common myths
- You need specialist equipment to brew herbal tea well.Reality: A clean mug, a small strainer and a kettle are all you genuinely need. Most specialist equipment is a nice-to-have, not a prerequisite. Module 2 explains where investment does and does not help.
- Blending your own herbal tea is complicated and risky.Reality: Basic blending is straightforward once you understand the base-body-accent framework in Module 6. You are combining food-grade plants, not laboratory chemicals. Start simple, taste as you go, and adjust.
- More expensive herbal teas are always better.Reality: Price correlates with quality only loosely. A poorly stored premium herb will produce a flat, disappointing cup, while a well-sourced, correctly stored mid-range herb brewed with care can be genuinely excellent. Freshness, packaging integrity and careful brewing technique have a far greater impact on the cup than price alone. Module 3 explains how to assess quality at a glance, regardless of what the label charges.
Research highlights
Each module of this course points to the best available evidence where relevant — and is equally honest when evidence is limited or contradicted by other studies. The herbal world has a long history of enthusiastic overclaiming, and one of the most useful skills this course can give you is a healthy critical eye.
When you read about a herb's "properties" in popular media, ask four questions: Is this based on a study of actual tea, or a concentrated extract? How many people did the study involve? Was it peer-reviewed? Does it match the conclusions of other independent studies? These questions will serve you well across every area of nutrition and wellness research, not just herbal tea.
For deeper reading, our guide to reading herbal tea research gives a practical framework for evaluating claims sensibly. It is worth reading alongside Module 5, when you are building the broader skill of careful, analytical tasting and thinking.
How it compares
| Module | Title | What you will learn | Key tools & guides |
|---|---|---|---|
| 1 | What Is Herbal Tea? | Tisanes vs true tea; caffeine explained; a short history of plant brewing; five friendly starter herbs and why they work for beginners | Herbal tea finder · Beginner's guide |
| 2 | Water & Equipment | Why water quality and temperature matter so much; kettle types; infusers, teapots and strainers; what to buy, what to skip | Brewing basics · Accessories guide · Brewing timer |
| 3 | Herb Quality & Sourcing | How to assess freshness; loose leaf vs tea bags; reading ingredient labels; organic, fair-trade and single-origin explained; where to buy well | Loose leaf vs tea bags · Herbal ingredients guide |
| 4 | Brewing Methods | Standard infusion; decoction (for roots and bark); cold brew; sun tea; double-strength for iced drinks; adjusting ratio and time for your taste | Botanical brewing guide · Temperature guide |
| 5 | Tasting & Sensory Skills | Building a tasting vocabulary (floral, earthy, citrus, sweet, bitter, astringent); using aroma; keeping tasting notes; identifying off-notes and their causes | Tea flavour profiles · Herbal tea journal |
| 6 | Blending & Beyond | The base-body-accent framework; balancing flavour and aroma; seasonal blending ideas; troubleshooting blends; building a home herb collection | Herbal tea blends guide · Herbal tea finder |