How to clean a coir doormat

Coir is the only mat material on this site that is actively damaged by the cleaning method people apply to everything else. That is the whole reason this page exists separately.

The procedure

1. 01Lift the mat and sweep the surface underneath. Coir sheds and drops grit through its weave, and what is under it is abrasive against whatever it is sitting on.
2. 02Shake it out, hard, held vertically. Most of what a coir mat holds is loose and will simply fall out.
3. 03Beat it against a wall, a step or a railing. This is the step that releases the grit embedded down in the fiber, and it is the one people skip.
4. 04Vacuum both sides. The underside matters - fine material collects against the woven backing and stays there.
5. 05Spot-clean only if genuinely needed, with a barely damp cloth and a little mild soap. Blot; do not scrub, which breaks fibers.
6. 06Dry it completely before it goes back down. On its edge or flat in the sun. A coir mat put back damp is a coir mat that starts to rot.

The three things that destroy a coir mat

1. The washing machine

It will come out as a mat-shaped pile of loose fiber with a separated backing. The agitation breaks the bristles and the prolonged soak dissolves the binding of the weave. There is no gentle cycle that makes this survivable.

2. The hose or pressure washer

Better than a machine and still bad. High-pressure water strips fiber out of the weave, and thorough saturation takes days to dry properly in anything but hot sun. A mat that stays saturated softens and starts to break down from the backing outward.

3. Leaving it in a position that stays wet

This is the slow version of the same problem and the most common one. Coir in a fully exposed position through a wet season never dries out between wettings, and organic fiber that stays wet rots. A covered porch or an overhang roughly doubles the usable life of a coir mat and it is free.

About the shedding

A new coir mat sheds loose fiber heavily for the first few weeks. This is normal, it is not a defect, and it stops. Sweep it up.

The instinct is to wash the mat to stop the shedding, which is exactly backwards - washing breaks more fiber loose and makes it worse. Vacuum it if the shedding bothers you, and wait it out.

How often

• Shake weekly. Coir fills with dry material fast and a full coir mat stops scraping.
• Beat and vacuum monthly, or after any heavy-use period like a wet week or a garden project.
• Turn it end for end every few months so the wear spreads across the mat rather than concentrating in the two feet in front of the door.
• Check the backing seasonally. A backing that has gone soft or is coming apart at an edge means the mat has taken on more water than it should and is on its way out.

When to replace it

When the fiber has gone soft. The entire function of coir is stiffness - it works as a brush, and a coir mat whose bristles have softened has stopped doing the one thing it is for, no matter how intact it looks.

The other end-of-life sign is the weave opening up, usually starting at a corner. Once the backing is coming apart, the mat sheds constantly and cannot be recovered. If yours is reaching this point sooner than expected, the position is probably too exposed - see best outdoor coir doormats for the covered-position argument and the rubber alternative.