How to Get Grease Out of Carhartt Pants and Jackets (Duck Canvas Is Different)
Duck canvas is not denim. It is thick, tightly woven cotton, and it holds grease deeper than a thin fabric does. Treat it like a t-shirt and the stain sets. Here is the method that works on heavy work gear, and the two mistakes that lock a stain in for good.
Cut the oil before you wash, wash warm, and keep heat away until the stain is gone.
1Why duck canvas holds grease differently
Duck is a heavy, tightly woven cotton canvas. That dense weave is exactly what makes the pants tough, and it is also what makes grease a pain. A thin cotton tee lets you get at an oil stain from both sides fast. Thick duck soaks the oil down into a tight weave, and on double-front pants there are two layers of it holding on. The grease is not just on the surface, it is in the fabric.
So two things change versus a normal shirt. You have to give your pretreat more time to work down into the weave, and you have to wash in warm water, which helps break the oil loose. Carhartt's own care guidance lines up with this: it says to wash duck shorts and pants warm, and to wash the lighter canvas items cold.[1] Check the tag on your exact garment, but warm is the move for heavy duck.
The grease is down in the weave, not sitting on top. Give the degreaser time to reach it, and never add heat until it is gone.
2The method for a fresh grease stain
Fresh is easy mode. Do this before the garment ever sees the dryer.
Step one: start dry. Do not rinse it first. Oil-stain guidance is to start with dry fabric and avoid wetting the stain, because water on grease just spreads it and gets in the way of the degreaser.[2] Scrape or blot any thick glob off the top, do not grind it in.
Step two: pretreat with dish detergent. Dish soap is a degreaser, so put it straight on the stain and gently rub it in, then let it break down the oil for 5 to 10 minutes.[2] On heavy duck, work it into the weave with your fingers or a soft brush and lean toward the full 10 minutes, since the oil is deeper than it would be in a thin shirt. A laundry booster made for grease does the same job and is built to sit in the wash.
Step three: flush, then wash warm. Flush the spot with warm water to clear the detergent, then machine wash in the warmest water the garment allows.[2] For heavy duck that is warm, which also matches Carhartt's care instructions.[1]
Step four: air dry and check. This is the step people skip and regret. Hang the garment and look at the spot in good light before it goes anywhere near a hot dryer. Stain guidance is clear: avoid drying with heat until the stain is gone, and repeat the treatment if it is still there.[2] Once the grease is actually out, dry it however you normally would.
3Old or already-set grease
A stain that has sat for weeks, or one that already went through a hot dryer, is harder but not always hopeless. Start by pulling as much oil out as you can before you wet anything.
Cover the stain with baking soda or cornstarch and let it sit. Both absorb surface oil, though they work best on fresh stains and are limited on set-in grease.[2] Brush the powder off, then run the same dish-soap pretreat from above, give it the full dwell time, and wash warm. The key with old grease is to expect more than one round. Re-treat and rewash, and check the spot before drying every single time.[2] A stain that has been heat-set once may never come all the way out, but several patient rounds pull most of it.
4What not to do
Do not run it through a hot dryer with the stain still there. Heat is what turns a maybe into a permanent. Keep the garment away from the dryer until you have confirmed the grease is gone, and air dry between treatments.[2]
Do not bleach it. Carhartt's care guidance for duck and canvas is do not bleach.[1] Beyond that, bleach is made to break down color and some organic stains, not to lift oil, so on a grease spot it risks wrecking the fabric's color without touching the actual problem. General stain guidance is to keep bleach off colored fabric and never mix it with other cleaners.[2]
Do not wet it first or scrub it in. Water before the degreaser spreads the oil, and hard scrubbing drives it deeper into that tight weave. Blot, treat, wait, then wash.[2]
5Frequently asked questions
Heavy duck holds grease deep in a tight weave, so it needs a real degreaser, dwell time and a warm wash, not a quick rinse. Pretreat on dry fabric, wash warm, and air dry until the stain is confirmed gone. Keep it out of the hot dryer and away from bleach, and most grease comes out of work gear just fine.
Shop grease is the hardest thing to get out of work clothes. Grip Clean's laundry booster and stain remover is built to pretreat and boost the wash on greasy workwear, so the duck comes out cleaner.
Sources
- Carhartt, Product Care guidance (duck shorts and pants: wash warm, do not bleach, tumble dry medium, remove promptly; canvas shorts and pants: wash cold, do not bleach). companygear.carhartt.com
- Clorox, "How to Get Oil Stains Out of Clothes" (start with dry fabric; apply dish detergent and let it break down the oil 5 to 10 minutes; flush with warm water and wash in the warmest water safe for the fabric; baking soda and cornstarch absorb surface oil but are limited on set-in grease; avoid drying with heat and repeat before drying; keep bleach off colored fabric and never mix it). clorox.com
Carhartt is a registered trademark of Carhartt, Inc. This article is independent and is not affiliated with or endorsed by Carhartt.
