White cotton and linen pick up dinginess fast, and store-bought whiteners cost more than they should for a job this simple. This quick soak uses one pantry staple and water to brighten washable whites before laundering as usual (because socks rarely whiten themselves).
A comparable commercial laundry whitener like OxiClean White Revive sells in the neighborhood of about 61 cents per ounce at Walmart for a 3-pound container, while this DIY version uses only cream of tartar and water, so you control the strength and skip added fragrance and booster ingredients you may not want in a simple whitening soak.
You only need 2 materials for this batch: cream of tartar and water. The formula makes one bucket of whitening soak, and all you need to put it together is a clean bucket plus your usual laundry setup for washing the items afterward.
- 🧰 Materials You'll Need
- 🔧 Tools/Equipment
- 🛠️ How to Make Fabric Whitener
- 🎨 Customization Ideas
- 🛠️ How to Use It
- 🛡️ Safety Information
- 📦 Storage
- 💸 Cost Breakdown
- 🛍️ Need Help Finding Everything?
- ❓ Frequently Asked Questions about Homemade Fabric Whitener
- 📌 Love this Homemade Fabric Whitener? Pin it!
- 🖨️ Print-Friendly How-To: Homemade Fabric Whitener
Materials You’ll Need
- 1 cup cream of tartar
- 3 cups water
Tools/Equipment
- Clean bucket
- Measuring cup
- Laundry washer
How to Make Fabric Whitener
- Pour 1 cup of cream of tartar and 3 cups of water into a clean bucket.
- Blend the mixture until the cream of tartar is evenly distributed in the water.
- Soak white linen or cotton items in the bucket to whiten them.
- Launder as usual after soaking.
If you need another whitening option for washable whites, try Budget101’s Whitening Soak or White Sock Soak for stubborn dinginess.
Customization Ideas
- Use this soak for white cottons when you want a simple pantry-based whitening treatment before washing.
- Use it for white linens that need brightening without switching to a separate commercial booster product.
- For other washable white fabrics, check the care label first and test cautiously before soaking the whole item.
How to Use It
Mix the soak in a clean bucket, add your white cotton or linen item, and let the solution do the whitening work before the load goes into the washer. Wash the pieces afterward the same way you normally would.
Always check the care label before treating a garment. The American Cleaning Institute notes that a white item is not automatically bleach-safe or treatment-safe just because it’s white, so label directions still matter for fabric care and stain treatment choices: How to Use Bleach.
Safety Information
- Use this soak only on white linen or cottons listed in the formula directions.
- Work with a clean bucket so you do not transfer residue, dye, or grime onto the fabric.
- Launder the items after soaking rather than letting the mixture dry into the fabric.
- Check garment care labels before treating specialty trims, blends, or finishes.
Storage
This formula works best when mixed fresh in the bucket and used right away for the soaking step. Store unused cream of tartar tightly sealed in its original container in a cool, dry place.
Cost Breakdown
Estimated project cost: about $4.00 per batch, based on roughly 1 cup of cream of tartar from current retail pantry pricing. Water cost is negligible, and prices vary by brand, package size, and store.
That makes this a practical option when you already keep cream of tartar on hand and only need a small batch of whitening soak for a few white items.
🛍️ Need Help Finding Everything?
- Cream of tartar at Walmart
- Cream of tartar on Amazon
- Pre-Soak for Delicate Fabrics
- How to Clean and Whiten Yellowed Pillows
Frequently Asked Questions about Homemade Fabric Whitener
No. This formula is written specifically for white linen or cottons. If you want to protect color, skip this soak and use a treatment meant for colorfast fabrics instead.
Use it on white linen or cotton items, exactly as written. If the garment includes trim, stretch fibers, or a blended fabric, check the care label before you soak it.
Yes. After soaking, launder the item as usual. That final wash helps remove the whitening solution and any loosened soil from the fabric.
Yes, as long as you keep the same ratio of 1 cup cream of tartar to 3 cups water. Use a larger clean bucket if you need enough soak to cover bulkier items.
The formula only says water, so stick with the original directions rather than changing the temperature on your own. If your fabric has special care requirements, let the care label guide you.
The directions do not give a soaking time, so use your judgment and monitor the fabric rather than leaving items forgotten in the bucket all day. When in doubt, start short and launder promptly.
It works best mixed fresh. If you have leftovers, you are better off discarding the diluted soak and mixing a new batch next time than trying to store a bucket of cloudy laundry water.
No. This is a pre-laundry whitening soak, not a detergent. You still need to wash the fabric afterward as usual.
Repeat the treatment if the care label allows it, or move to a different whitening approach for tougher discoloration. Some yellowing and wear simply need more than one pass, which is rude but common.
📌 Love this Homemade Fabric Whitener? Pin it!
Did you try this fabric whitener? Tell us what you used it on and whether you stuck with the original soak or scaled the batch up for a bigger laundry job.
🖨️ Print-Friendly How-To: Homemade Fabric Whitener
Homemade Fabric Whitener
Equipment
Materials
- 1 cup cream of tartar
- 3 cups water
Instructions
- Pour 1 cup of cream of tartar and 3 cups of water into a clean bucket.
- Blend the mixture until the cream of tartar is evenly distributed in the water.
- Soak white linen or cotton items in the bucket to whiten them.
- Launder as usual after soaking.
- Use only on white linen or cottons.
- Check care labels before soaking specialty fabrics, trims, or blended materials.
- Estimated cost reflects consumable materials only and will vary by brand and package size.
- The original directions do not provide a soak time, so monitor the fabric and launder promptly after treatment.
