Two of the most common methods you’ll come across are infusions and decoctions. They’re both water-based preparations, but they serve different purposes depending on the plant you’re working with.

What is an Herbal Infusion?

An infusion is what most people think of when they picture making tea.

This method is best for the softer, more delicate parts of a plant like leaves, flowers, and anything aromatic. You simply pour hot (or sometimes cool) water over the herbs and allow them to steep, letting the water gently pull out the plant’s properties.

Steeping time can vary quite a bit. Some herbs are ready in as little as 5 minutes, especially if they become bitter quickly. Others, particularly those rich in minerals, benefit from a much longer steep, sometimes 20 minutes or even several hours.

There are also times when you might leave an infusion to sit overnight. This is often done when you’re trying to draw out deeper nourishment from the plant.

And then there are always exceptions.

Some plants prefer a slower, gentler approach. For example, herbs that have a soothing, moistening quality can do better with cooler water and longer steep times. These types of preparations take patience, but they offer something entirely different in return.

Even within infusions, the method shifts depending on what the plant needs.

What is a Decoction?

A decoction is a bit more hands-on.

Instead of simply pouring water over the herbs, you gently simmer them over low heat. This method is used for the tougher, denser parts of a plant like roots, bark, seeds, and berries—parts that need more effort to fully release what they hold.

Decoctions are typically simmered for at least 20 minutes, sometimes longer, resulting in a more concentrated and robust preparation.

These plant materials can often be simmered more than once, allowing you to fully work with everything they have to offer before returning them to the earth.

It’s important to keep a lid on your pot while your herbs simmer. This keeps the more delicate oils from escaping, preserving both the scent and the experience of the final preparation.

How to Know Which to Use

A simple way to think about it is this:

• Soft, delicate plant parts → infusion
• Tough, dense plant parts → decoction

But like most things in herbalism, it’s not just about rules. It’s about listening and learning over time. The more you work with plants, the more you begin to understand what each one needs.

Sometimes that even means combining methods, like starting with a decoction for the tougher plant parts and then using that warm, mineral-rich liquid to infuse the more delicate herbs. It’s a gentle layering of preparation that honors each part of the plant.

This is where herbalism starts to feel less like a process and more like a relationship.

And that’s where the magic really is.