How to Wash and Care for Your BJJ Gi — 5 Steps to Keep It Fresh for Longer
The 30-minute rule, cold water plus vinegar, shade drying with airflow, emergency fixes for mildew, and care by color. A practical guide to making your gi last.
Gi stink is the eternal problem of every BJJ practitioner. If your gi still smells sour no matter how often you wash it, the reason is simple: you are washing it the wrong way. This guide covers five steps to keep your gi fresh and wearing like new for years.
Why gis smell so bad
- Gi fabric (cotton, pearl weave) soaks up sweat and bacteria
- Bacteria get trapped deep inside the thick weave
- Ground training means it also picks up bacteria from the mats
- A regular wash cycle does not clean all the way through
1. The 30-minute rule after training
This is the most important step. Leaving your gi zipped in your bag for hours is a fast track to mildew and smell.
- Take it out of your bag and air it within 30 minutes of finishing training
- If you cannot wash it right away, hang it on a hanger with good airflow
- No plastic bags or sealed bags — use a breathable gear bag
2. Washing — cold water plus vinegar
- Cold water (30°C / 86°F or below) — hot water shrinks the fabric and fades the color
- Regular detergent plus one cup of vinegar — a common way to fight odor
- No fabric softener
- If you train twice a week or more, rotate 2–3 gis so each one has time to dry completely
3. Drying — no direct sunlight; shade and airflow
- Direct sunlight discolors and weakens the fabric
- No tumble dryer — it shrinks and damages the fabric
- Shade or indoors with a fan for airflow — the safest option
- Wait until it's completely dry (thicker fabrics take longer)
4. Emergency fixes for mildew and sour smell
If the smell has already set in:
- Soak in vinegar water for 24 hours, rinse, then wash with baking soda — mixing the two neutralizes them and makes them useless, so always use them separately, one after the other
- Do a normal wash after soaking — repeat if one round does not remove it
- If it still will not go away, use an enzyme detergent made for sportswear
- If you see mildew spots, bleach and then do a strong wash (white gis only)
5. Care by color and fabric
- White gis: turn yellow over time. An oxygen bleach (such as OxiClean) can restore them
- Blue and black: fade quickly. Wash inside out and never dry in the sun
Gi lifespan — care decides it
How it dries matters as much as how often you wash it. Getting into the habit of wearing it only when fully dry is what makes a gi last.
With only one gi, you put it back on before it is fully dry, which speeds up mildew. Buying two at once when you start is the most economical choice in the long run.