Nothing's worse than pulling a brand-new t-shirt from the dryer only to find it's shrunk.
This occurs because heat causes cotton fibers to tighten and contract.
The first step is always checking the care label for washing temperature, method, and spin speed—whether by machine or hand.
Yet even this doesn't always safeguard 100% cotton items fully.
As a laundry enthusiast with years of experience preserving favorite garments, I've relied on this reliable grandmother's remedy: an overnight saltwater soak that locks in size and shape.
Here's how it works:

And there you have it! Salt's natural anti-shrink properties protect your cotton clothes through the wash—no more lost sizes. :-)
Simple, fast, and foolproof. Now machine-wash confidently.
Bonus: This method also sets colors, preventing fading on cotton fabrics.