Bamboo T-shirts without yellow sweat stains

Short answer: Yellow sweat stains appear when sweat and deodorant residue stay in the fabric and discolour it over time. Rinse quickly, wash regularly at a low temperature and avoid heat until the stain is gone. Let the deodorant dry before you put the T-shirt on.

Why sweat stains turn yellow

Yellow marks appear when sweat and deodorant residue stay in the fabric and discolour it over time. If the T-shirt lies damp in a basket, the stains have an easier time. That is why they are often clearest under the arms, where the skin is warm and damp for many hours.

What you can do straight away

Rinse the stain in cold water as soon as you take the T-shirt off. That removes most of the sweat before it settles in the fabric. Do not leave the T-shirt crumpled in a bag, but hang it up so it dries completely before it goes into the laundry.

Pre-treatment before washing

Rub a little mild detergent into the stain and leave it for about half an hour before you wash. Do not rub hard, because wet viscose is delicate. If you are unsure, try it first on a hidden spot and follow the care label in your bamboo T-shirts for men.

Wash at a low temperature

Hot water can set sweat stains in the fabric, so wash at a low temperature on a gentle program. That is also best for viscose. Check the stain before the T-shirt goes into the tumble dryer, because heat can lock it in if it is still there.

Avoid strong products

Strong bleach and hard rubbing can damage viscose and cause new discolouration. Stick to mild products and the care label. If the stain is stubborn, repeat the pre-treatment and wash again, instead of reaching for something stronger that can take the T-shirt with it.

Prevent with good habits

Let the deodorant dry before you put the T-shirt on. Wash the T-shirt more often if you sweat a lot, and do not leave it damp in the basket. Rotate between several T-shirts so each one can air and dry, and so the sweat does not work on the same spot every day.

Other clothes are affected too

Sweat stains can appear on any clothes that sit under the arms. That includes bamboo underwear for men, which can get marks if it is not washed regularly. The same simple habits help you, and it is always easier to prevent than to remove.

When the stain will not go

Sometimes stains sit too firmly to go. Then it is a trade-off whether you use the T-shirt only as a layer under something else, for example under a bamboo jogging set for men, or would rather replace it. Judge how much it bothers you.

Frequently asked questions

Why does the T-shirt get yellow marks under the arms?

It is usually a mix of sweat and deodorant residue that settles in the fabric over time. Rinse quickly and wash regularly to lower the risk.

Can yellow sweat stains be removed completely?

Sometimes. It depends on how long the stain has been there. Pre-treat with a mild product and wash at a low temperature, but do not always expect them to disappear fully.

Should I use bleach?

It is not recommended for viscose, unless the care label says otherwise. Strong products can damage the fabric and cause new marks, so stick to mild ones.

You can find the full range at Copenhagen Bamboo.