What Is Resin Incense? A Catholic's Guide

 

Resin incense is the dried sap of aromatic trees — most famously frankincense and myrrh — burned on a hot charcoal disc to release fragrant smoke. It is the original form of incense, the one used in the Old Testament temple, the one the Magi brought to the infant Christ, and the one Catholic priests still place on charcoal inside the thurible at Mass.

It is different from the incense sticks and cones sold in most stores. Those are processed, blended with binders and synthetic fragrance oils, and burn evenly with a single match. Resin incense is the raw material: small hardened tears of tree sap that need a separate heat source — usually charcoal — to release their scent. The fragrance is purer, the practice is older, and the experience is closer to what you smell at a cathedral than at a New Age shop.

Here is the full picture: what resin incense is, how it compares to other incense formats, the main varieties Catholics use, and how to start.

Where resin incense comes from

When the bark of certain aromatic trees is cut, the tree weeps a milky sap to seal the wound. The sap hardens in the air into golden, amber, or reddish-brown lumps called "tears." Harvesters collect the tears by hand, sort them by size and color, and ship them to incense houses for sale.

Four trees account for nearly all liturgical resin used today:

• Boswellia — produces frankincense (Olibanum). Grows in Oman, Somalia, Sudan, Ethiopia.
• Commiphora — produces myrrh. Grows in the Horn of Africa and southern Arabian Peninsula.
• Bursera — produces copal. Grows in Mexico and Central America.
• Protium heptaphyllum — produces breu, sometimes called "Brazilian frankincense." Grows in the Amazon.

Each tree produces a different scent. Combined or burned alone, they cover the full liturgical range.

Resin vs. stick vs. cone — the format matters

Format	What it is	How it burns	Where you'll see it
Resin	Pure dried tree sap	Needs charcoal or indirect heat	Catholic and Orthodox liturgy, monasteries, home altars
Stick	Powdered ingredients mixed with a binder, rolled onto a thin bamboo stick	Lights with a match, burns for ~30 minutes	Yoga studios, gift shops, daily home use
Cone	Powdered ingredients shaped into a small cone	Lights with a match, burns for ~15 minutes	Decorative, often used in backflow waterfall burners

Stick and cone incense almost always contains synthetic fragrance oil to give them their scent. The "frankincense" stick at a typical shop usually contains essential oil of frankincense, not the resin itself. Resin incense is the actual material.

The four most common Catholic resin varieties

Frankincense (Olibanum). Bright, sweet, lemon-pine. The dominant scent at most Catholic Masses. Sourced primarily from Somalia and Sudan. The traditional "incense" of Scripture — the gift the Magi brought to the infant Christ as a sign of his divinity.

Myrrh. Warmer, deeper, slightly bitter. Sourced from the Horn of Africa. In the Gospels, Nicodemus brings "a mixture of myrrh and aloes" to anoint Christ's body before burial (John 19:39). Myrrh is the resin of solemnity and mourning.

Copal. Fresh, citrusy, brighter than frankincense. Sourced from Mexico and Central America. Adopted by the Spanish missionary Catholic Church as a frankincense substitute in the Americas; still used in Mexican parishes today.

Liturgical blends. Most parish incense is a blend — frankincense as the dominant note, with myrrh, benzoin, and sometimes copal added to extend burn time and balance the scent. Our manufacturers produce various liturgical blends, each tied to a specific saint, feast, or devotional theme.

Why Catholics burn it

Three reasons rooted in Scripture and liturgy.

Prayer rising to heaven. Psalm 141:2: "Let my prayer be set forth before thee as incense; and the lifting up of my hands as the evening sacrifice." The smoke is a visible image of prayer ascending. The Book of Revelation extends the image: "The smoke of the incense, together with the prayers of the saints, rose up before God" (Revelation 8:4).

Continuity with the temple. Exodus 30 prescribes a sacred incense for the altar of the Tabernacle, made of stacte, onycha, galbanum, and frankincense. The Catholic Mass inherits this practice — incense at the entrance procession, at the Gospel, at the offertory, at the elevation.

Sanctification. Incense is a sacramental. It is used to bless, purify, and venerate — the altar, the Gospel book, the offerings, the people. At home, the same gesture extends to a personal altar, a statue, or a moment of prayer.

How you burn it (the short version)

Light a quick-light charcoal disc with tongs. Set it in a heat-safe burner. Wait 1–3 minutes until it turns gray with ash. Place 6–10 pea-sized pieces of resin on top. Smoke appears within seconds. Refresh the resin every 5–10 minutes. One charcoal disc supports 30–60 minutes of burning.

Full step-by-step with images: How to Burn Resin Incense.

If you'd rather avoid charcoal and smoke, three indirect-heat methods work too: How to Burn Resin Incense Without Charcoal.

Frequently asked questions

Is resin incense better than stick incense?

For Catholic devotional use, yes. Resin is the actual material the Church has used for two thousand years; sticks are a 19th-century product. Resin produces a purer fragrance with no synthetic additives. Sticks are more convenient — no charcoal, no tongs — and fine for daily room scenting if convenience matters more than tradition.

What's the difference between frankincense and Olibanum?

None. Olibanum is the formal Latin name for frankincense resin from the Boswellia tree. Catholic incense suppliers tend to use "Olibanum" when distinguishing pure single-resin frankincense from blended liturgical incense.

Do I need a special burner for resin incense?

Yes. Stick burners (the long wooden trays) do not work — resin needs a heat-safe vessel that can hold a hot charcoal disc. Most Catholic homes use a small ceramic or brass burner with a metal grate; parishes use a swinging thurible suspended on chains.

How much does it cost to get started?

A complete starter kit with burner, charcoal, tongs, and 18 resin varieties runs around $35. Standalone resin sachets start around $5. Charcoal is roughly $4 for a sleeve of 10 discs.

Is resin incense safe around children and pets?

With ventilation, yes. The resin itself is non-toxic. The combustion produces smoke that can irritate sensitive lungs (pets, asthma) without good airflow. Charcoal-free methods (tea-light warmer, electric burner) are safer if smoke is a concern.

Or browse:

• Pure resin incense — single-resin varieties: frankincense, myrrh, copal, devotional blends
• Burners and censers — ceramic, brass, and hand censers
• All incense starter kits

Milagros is the Brazilian incense house that supplies the Vatican.