Can you buy lye at the grocery store?
Emily Schmidt
Updated on April 14, 2026
Lye used to be available in the supermarket but not anymore. You might be able to find it in some hardware stores often in the drain cleaning section next to the Draino. In order for that lye to be effective in soapmaking, you need to make sure that you are getting 100 percent sodium hydroxide.
Can lye be purchased?
Craft stores carry lye for soapmaking. There is also food-grade sodium hydroxide, sold in some specialty cooking stores. You can find sodium hydroxide online. You can purchase it at Amazon as sodium hydroxide or lye, pure lye drain opener, caustic soda, and pure or food-grade sodium hydroxide.Which lye is best for soap making?
Best Lye for Soapmaking
- Essential Depot Potassium Hydroxide Flakes. Potassium hydroxide (potash) flakes.
- The Boyer Corporation Red Crown Lye. Sodium hydroxide flakes.
- Essential Depot Pure Sodium Hydroxide Lye. Sodium hydroxide beads (food-grade)
- Grandma's Pure Lye Soap Bar. Lye soap bar (can be reused)
Is there a substitute for lye?
A common home alternative to lye when making pretzels or bagels is to use a baking soda solution.How do you get lye?
To make lye in the kitchen, boil the ashes from a hardwood fire (soft woods are too resinous to mix with fat) in a little soft water, rainwater is best, for about half an hour. Allow the ashes to settle to the bottom of the pan and then skim the liquid lye off the top.How grocery stores are getting you to shop longer
What do you use lye for?
Uses of Caustic Soda or LyeLye is used for soap making, candle making, homemade biodiesel, frosting glass, making several foods, and for chemistry experiments.
How do you make lye from baking soda?
You only need two ingredients for homemade lye water: Baked baking soda and water. Mix them at a 1:4 ratio. Then you're ready to use it!Is lye and baking soda the same?
Lye is a stronger alkaline than baking soda or sodium bicarbonate, with a pH reading ranging from around 13 to 14. Its base of sodium hydroxide is created commercially by the electrolysis of sodium chloride solution, as well as reacting calcium hydroxide with sodium carbonate, according to the FDA.Can I use baking soda instead of lye?
Many home recipes replace the lye with baking soda, but the results taste like breadsticks, not pretzels. Baked soda does a much better job of approximating true lye-dipped pretzels.Is there a substitute for lye in soap making?
Sodium hydroxide is the lye you use to make bar soap. No other substances can be used in place of either sodium hydroxide or potassium hydroxide to make soap.Can bar soap be made without lye?
NO, chemically-speaking, soap itself cannot be made without lye. Soap is made by blending oils (like olive oil or coconut oil), a liquid (water, goat's milk, etc.), and an alkali (lye). Lye is needed to convert oils into soap.Can you use lye from the hardware store to make soap?
You Can't Make Soap Without LyeYou might be able to find it in some hardware stores often in the drain cleaning section next to the Draino. In order for that lye to be effective in soapmaking, you need to make sure that you are getting 100 percent sodium hydroxide. Otherwise, do not buy it.
How much does it cost to buy lye?
Lye PricesLye (sodium hydroxide) is sold as low as $5.99 per pound.