Cold Infusions

Best For

Cold infusions are best suited for herbs that contain:

• Mucilage

• Polysaccharides

• Delicate water-soluble compounds

These herbs are often used for soothing irritated tissues.

Cold infusion is particularly appropriate for:

• Digestive tract irritation

• Urinary tract soothing

• Dry respiratory tissues

• Gentle hydration support

Appearance & Character

Cold infusions often appear:

• Slightly cloudy

• Smooth or silky in texture

• Mildly aromatic

When prepared with mucilaginous herbs, the liquid may feel soft, slippery, or gel-like, reflecting the presence of soothing plant polysaccharides.

Color varies depending on the herb used but is usually lighter than hot teas.

Preparation

Cold infusions are simple to prepare and require minimal equipment.

Materials

• Dried herbs

• Cool or room-temperature water

• Glass jar or cup

• Strainer

Method

1. Place herbs in a jar or cup.

2. Add cool or room-temperature water.

3. Cover the container.

4. Allow the herbs to steep for several hours or overnight.

5. Strain before drinking.

A common starting ratio is:

1 tablespoon dried herb : 1 cup water

Extraction Time

Typical steeping time:

4–12 hours

Many cold infusions are prepared overnight and strained in the morning for use throughout the day.

Historical & Cultural Context

Cold infusions have long been used in herbal traditions for plants rich in mucilage and soothing compounds.

Traditional herbalists observed that certain herbs produced a more effective preparation when steeped without heat, particularly roots and leaves that release slippery or gel-like substances.

This method continues to be used in modern herbal practice for gentle, hydrating preparations that calm irritated tissues.

In the Archive With…

Often prepared with herbs rich in mucilage and soothing polysaccharides, including:

Marshmallow root

Slippery elm

Cleavers

Nettle

Rose

These plants release their soothing constituents slowly into cool water, creating a preparation that supports hydration and tissue comfort.

What It Is

A cold infusion is made by soaking herbs in cool or room-temperature water for several hours or overnight.

Unlike hot infusions (herbal teas), this preparation allows compounds to dissolve slowly without the use of heat.

Cold infusions are most commonly used for herbs rich in mucilage or delicate compounds that degrade with heat.

Cold Infusion (Infusum Frigidum)

A cold infusion is an herbal preparation made by steeping plant material in room-temperature or cool water for an extended period of time. This method extracts delicate or mucilaginous compounds that may be damaged or diminished by heat.

Cold infusions are especially valued for herbs that contain soothing polysaccharides and mucilage, making them gentle preparations for digestive, urinary, and respiratory support.

Solubility & Extraction Notes

Cold water extraction primarily dissolves water-soluble plant constituents, including:

• Mucilage

• Polysaccharides

• Some minerals

• Mild aromatic compounds

Heat can sometimes degrade mucilage, which is why herbs rich in these compounds are traditionally prepared using cold water.

Because cold infusions extract slowly, they are typically prepared with longer steeping times than hot teas.

Shelf Life

Cold infusions are fresh preparations and should be consumed within:

12–24 hours

Because they contain water and minimal preservatives, they spoil more quickly than tinctures or honey-based preparations.

For best quality:

• Store in the refrigerator

• Prepare fresh daily when possible

Discard if the infusion develops an off smell or taste.

Safety Notes

Cold infusions are generally gentle but should be prepared carefully.

Important considerations include:

• Use clean water and containers

• Refrigerate if storing for several hours

• Discard after 24 hours

• Only use herbs appropriate for water infusion