Why Tinder Makes or Breaks a Woodland Fire

Most failed fires in British woodland are not failed because of bad matches or poor technique. They fail because the tinder was wrong. A damp, half-hearted bundle of green leaves will not catch, no matter how carefully you coax it, and it will leave you cold and frustrated while the light fades. The trick is knowing which materials actually work, where to find them, and how to keep them dry when the weather turns.

The best tinder has three qualities: it is dead and dry, it is finely divided, and it is rich in either resin, oil or air. In Britain, we have plenty of trees that offer exactly that. What follows is a practical guide to the ones worth collecting, based on years of doing this in drizzle, in frost and occasionally in sunshine.

Birch Bark: The Gold Standard

If you learn one tinder, learn this one. The outer bark of silver birch and downy birch contains betulin, a waxy, oily substance that burns fiercely even when the bark looks wet. It is the closest thing we have to a natural firelighter.

• Look for: loose, curling strips on standing dead birch, or bark peeled from fallen timber. Never strip a living tree — it wounds the trunk and leaves it open to infection.
• Prepare it: shred the bark into thin, ribbon-like fibres rather than leaving it in thick sheets. Surface area is everything.
• Use it: a loose nest of shredded bark the size of a tennis ball will take a spark from a ferrocerium rod and burn long enough to light pencil-thin twigs.

Older birch bark from the base of a dead trunk is often the richest, but the thin, papery layers from higher up are easier to shred. Collect a little from several trees rather than all from one.

Other Tree-Borne Tinders Worth Knowing

Birch is not the only option. Several other British trees give up excellent tinder if you know where to look.

• Scots pine: look for resin-soaked dead knots and the brittle, orange-brown heartwood of old stumps. Scrape or shave it into fluffy curls. The dry male cones and the papery layers of dead inner bark also work well.
• Sweet chestnut: the fibrous inner bark of dead branches shreds into a coarse but reliable nest, and the dry, spiky husks from last autumn's crop burn hot once broken up.
• Willow and lime: dead inner bark from fallen branches peels into long, stringy fibres that catch a spark beautifully when teased apart.
• Elder: the soft, white pith from dead stems is light, dry and takes a spark readily. Break the stems open and crumble the pith between your fingers.
• Clematis and honeysuckle: the shredded, woody outer stems of old man's beard are outstanding, though strictly a climber rather than a tree.

Whichever you choose, the rule is the same: dead, dry and broken down small. If it bends rather than snaps, it is too damp.

Ground Tinders and the Overlooked Everyday

Trees are only half the story. Some of the most dependable tinder lies at your feet, especially in late summer and autumn.

• Dry grass: dead, standing grass from the previous season, gathered into a loose bundle and rubbed between your palms until it is a soft, fibrous ball. Avoid anything lying flat on damp soil.
• Bracken: the dry, rust-coloured fronds of last year's growth crumble into an excellent fluffy tinder.
• Reed mace: the brown seed heads explode into a mass of downy fibre that takes a spark almost too eagerly. Handle it gently and mix it with coarser material so it does not flash away before your kindling catches.
• Rosebay willowherb: the silky seed down is superb, but again, blend it with something more substantial.

The common thread here is a mixture: something that catches instantly, held inside something that burns a little longer. A nest of grass with a core of birch bark is far better than either on its own.

Testing Before You Trust

Never assume a tinder will work. Test it before you are relying on it. Roll a small amount between your fingers — if it crumbles freely and feels dry and papery, it is promising. If it feels cool and clammy, leave it.

You can also test by crushing a pinch and smelling it. Resinous pine should smell sharp and turpentine-like; birch bark has a faint, sweet, almost wintry scent. Damp material smells of earth and rot, and it will not catch.

Storing Tinder Safely and Dry

Collect more than you need and store it properly. A few dry handfuls in a pocket will save a cold evening.

• Keep it dry: a small stuff sack or airtight tin works well. Add a sachet of silica gel if you have one. Dry tinder absorbs moisture from the air surprisingly quickly.
• Keep it loose: compressed tinder loses its air pockets and its ability to catch. Store it fluffed up, not crammed.
• Watch for mould: anything gathered damp will rot and smell sour within days. Only store material that was bone dry when collected.
• Store away from sparks: birch bark, resinous pine and seed down are highly flammable. Keep your tinder bag away from stoves, firelighting kit you are testing, and anything hot.
• Rotate your stock: use the oldest material first and top up when you are next out. A tin that has sat in a shed all winter will be damp by spring.

Gather a little, gather it dry, and give it the respect it deserves. Do that, and the fire will follow.