AIBU to ask how to remove armpit crust from tops?

[GreenIsMyFavoriteColour]

DP's shirt armpits become white and stiff with antiperspirant.

The shirts are too good for the bin. Surely there is some chemical that will just dissolve the stuff?

AIBU to ask Mumsnetters the best way to solve this problem?

HG sweat stain remover has worked on our shirts. HG is generally wonderful for all things though, their sticky stuff remover is amazing.

Soda crystals.

Make a paste using water and rub the paste into the sweaty areas. Add a cup of soda crystals to a bowl of water, and add the shirt to it and leave overnight.

Put through a wash as normal, preferably a hot one. You might have to start soaking his shirts by default by the sounds of it.

Don't combine bicarb and white vinegar because after the initial fizz, it's basically just salt water and ineffective.

Make him deal with his own bloody skanky shirts.

Try a bicarbonate of soda paste

i had same problem with partners sports clothes, we use Halo sports laundry washing liquid, saved a fair few clothes. - sorry can’t post links

I think the best way to solve it would be to leave it to your dp to sort out.

Thanks to everyone who commented.

We've tried bicarb paste and very hot water and it helps but doesn't just magically dissolve it away as I'd hoped.

I googled aluminium free anti persperants and it seems you have to switch to deodorant to avoid Aluminium.

He's going to try different brands of anti-persps in case his current brand is an especially sticky one.

White vinegar.

Wear white t-shirt under good shirts. That used to be standard for men.

There's a post in a science-based modern cloth nappies Facebook group I'm on asking the same thing. The moderator response is good old scrubs with nail brush and a bar of soap, then hot washes with the right amount of detergent. But there's 60 comments so there might be some other nuggets in there.

Link: www.facebook.com/share/p/14JE49BT1j/

Soak with vinegar before washing to get rid of buildup. Also give it a scrub.

As prevention spray a little vinegar/water on before washing.

Yes, it's definitely a combination of factors. I used to use the same deodorant as my husband but never had any issues whilst his shirts went crusty. Same washing powder, washing routine as well.

Someone said they binned a shirt because the armpit area was crusty and I'm quietly crying at the lack of regard for the process and material used in creating the shirt, at the waste, especially given the current drive even by clothing retailers themselves to pass on/upcycle/re-sell/repurpose.
Please don't bin clothes.

We've had this issue and im pretty sure its also to do with the oils in the sweat. We use bio detergent /hot washes to no avail, it won't shift.
One member of my family has oilier sweat and sweats more than the rest of us and i think this causes this issue as their shirts are definitely worse.

I think you are right. I have followed every tip on this thread and nothing has worked for one of DD's T-shirts.