Walmart has 16-Oz Dawn Powerwash Spray Dish Soap Refill (various) + $2 Walmart Cash (check box on the product page) for $3.94. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.
Thanks to community member kenmikec for sharing this deal.
Note: You must be signed in to your account to check the Walmart Cash offer box. Prices and availability may vary by location.
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Walmart has 16-Oz Dawn Powerwash Spray Dish Soap Refill (various) + $2 Walmart Cash (check box on the product page) for $3.94. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.
Thanks to community member kenmikec for sharing this deal.
Note: You must be signed in to your account to check the Walmart Cash offer box. Prices and availability may vary by location.
Deal History includes data from multiple reputable stores, such as Best Buy, Target, and Walmart. The lowest price among stores for a given day is selected as the "Sale Price".
Sale Price does not include sale prices at Amazon unless a deal was posted by a community member.
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The DIY mix is a great surface cleaner, but it's missing the alkalinity and glycol ethers that make the real thing work on baked-on grease. If you want the DIY version to actually match the commercial performance, you have to bridge that pH gap—otherwise, you're just spraying diluted soap.
The Chemistry of the "Home Upgrade"
The DIY recipe in this post (soap + alcohol + water) creates a functional surfactant spray, but it lacks the alkalinity required to match the original product's speed. Regular dish soap is formulated to be pH-neutral for skin safety, which limits its ability to chemically break down polymerized (baked-on) grease.
The Mechanical Upgrade: Adding Washing Soda (Sodium Carbonate)
Adding approximately 1/2 teaspoon of Washing Soda to a 16 oz spray bottle fundamentally changes how the solution interacts with lipids (fats):
Saponification: High alkalinity (pH \approx 11) triggers a process called alkaline hydrolysis. It essentially turns the grease on the pan into a water-soluble soap on a molecular level before you even start scrubbing.
Surface Tension: The alcohol acts as a solvent to lower the surface tension of the water, allowing the alkaline "attack" to penetrate through thick grease layers more rapidly.
The "Salting Out" Risk: To prevent the soap and powder from separating or clogging the nozzle, the washing soda must be fully dissolved in warm water before adding the alcohol and soap.
Important Constraints
Avoid Aluminum: This high-alkaline mixture will chemically react with aluminum, causing permanent oxidation (darkening/pitting). It is for ceramic, glass, and stainless steel only.
Skin Barrier: Because the pH is significantly higher than standard soap, it will strip natural oils from your skin faster. Use gloves for heavy cleaning.
please do know that while I theorize that adding the washing soda to the mix will increase the cleaning power, I have not tested. would love for somebody else to test it and tell me if it's viable as far as not clogging and generally helping.
11 Comments
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Our community has rated this post as helpful. If you agree, why not thank FeistyKite520
Quote
from Misterdobalina
:
Some dish soap. A little rubbing alcohol. The rest water. Scent as needed. If possible don't pay a corporation for something you can make at home.
The DIY mix is a great surface cleaner, but it's missing the alkalinity and glycol ethers that make the real thing work on baked-on grease. If you want the DIY version to actually match the commercial performance, you have to bridge that pH gap—otherwise, you're just spraying diluted soap.
The Chemistry of the "Home Upgrade"
The DIY recipe in this post (soap + alcohol + water) creates a functional surfactant spray, but it lacks the alkalinity required to match the original product's speed. Regular dish soap is formulated to be pH-neutral for skin safety, which limits its ability to chemically break down polymerized (baked-on) grease.
The Mechanical Upgrade: Adding Washing Soda (Sodium Carbonate)
Adding approximately 1/2 teaspoon of Washing Soda to a 16 oz spray bottle fundamentally changes how the solution interacts with lipids (fats):
Saponification: High alkalinity (pH \approx 11) triggers a process called alkaline hydrolysis. It essentially turns the grease on the pan into a water-soluble soap on a molecular level before you even start scrubbing.
Surface Tension: The alcohol acts as a solvent to lower the surface tension of the water, allowing the alkaline "attack" to penetrate through thick grease layers more rapidly.
The "Salting Out" Risk: To prevent the soap and powder from separating or clogging the nozzle, the washing soda must be fully dissolved in warm water before adding the alcohol and soap.
Important Constraints
Avoid Aluminum: This high-alkaline mixture will chemically react with aluminum, causing permanent oxidation (darkening/pitting). It is for ceramic, glass, and stainless steel only.
Skin Barrier: Because the pH is significantly higher than standard soap, it will strip natural oils from your skin faster. Use gloves for heavy cleaning.
please do know that while I theorize that adding the washing soda to the mix will increase the cleaning power, I have not tested. would love for somebody else to test it and tell me if it's viable as far as not clogging and generally helping.
Last edited by FeistyKite520 January 1, 2026 at 08:23 AM.
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The Chemistry of the "Home Upgrade"
The DIY recipe in this post (soap + alcohol + water) creates a functional surfactant spray, but it lacks the alkalinity required to match the original product's speed. Regular dish soap is formulated to be pH-neutral for skin safety, which limits its ability to chemically break down polymerized (baked-on) grease.
The Mechanical Upgrade: Adding Washing Soda (Sodium Carbonate)
Adding approximately 1/2 teaspoon of Washing Soda to a 16 oz spray bottle fundamentally changes how the solution interacts with lipids (fats):
Saponification: High alkalinity (pH \approx 11) triggers a process called alkaline hydrolysis. It essentially turns the grease on the pan into a water-soluble soap on a molecular level before you even start scrubbing.
Surface Tension: The alcohol acts as a solvent to lower the surface tension of the water, allowing the alkaline "attack" to penetrate through thick grease layers more rapidly.
The "Salting Out" Risk: To prevent the soap and powder from separating or clogging the nozzle, the washing soda must be fully dissolved in warm water before adding the alcohol and soap.
Important Constraints
Avoid Aluminum: This high-alkaline mixture will chemically react with aluminum, causing permanent oxidation (darkening/pitting). It is for ceramic, glass, and stainless steel only.
Skin Barrier: Because the pH is significantly higher than standard soap, it will strip natural oils from your skin faster. Use gloves for heavy cleaning.
please do know that while I theorize that adding the washing soda to the mix will increase the cleaning power, I have not tested. would love for somebody else to test it and tell me if it's viable as far as not clogging and generally helping.
11 Comments
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Our community has rated this post as helpful. If you agree, why not thank FeistyKite520
The Chemistry of the "Home Upgrade"
The DIY recipe in this post (soap + alcohol + water) creates a functional surfactant spray, but it lacks the alkalinity required to match the original product's speed. Regular dish soap is formulated to be pH-neutral for skin safety, which limits its ability to chemically break down polymerized (baked-on) grease.
The Mechanical Upgrade: Adding Washing Soda (Sodium Carbonate)
Adding approximately 1/2 teaspoon of Washing Soda to a 16 oz spray bottle fundamentally changes how the solution interacts with lipids (fats):
Saponification: High alkalinity (pH \approx 11) triggers a process called alkaline hydrolysis. It essentially turns the grease on the pan into a water-soluble soap on a molecular level before you even start scrubbing.
Surface Tension: The alcohol acts as a solvent to lower the surface tension of the water, allowing the alkaline "attack" to penetrate through thick grease layers more rapidly.
The "Salting Out" Risk: To prevent the soap and powder from separating or clogging the nozzle, the washing soda must be fully dissolved in warm water before adding the alcohol and soap.
Important Constraints
Avoid Aluminum: This high-alkaline mixture will chemically react with aluminum, causing permanent oxidation (darkening/pitting). It is for ceramic, glass, and stainless steel only.
Skin Barrier: Because the pH is significantly higher than standard soap, it will strip natural oils from your skin faster. Use gloves for heavy cleaning.
please do know that while I theorize that adding the washing soda to the mix will increase the cleaning power, I have not tested. would love for somebody else to test it and tell me if it's viable as far as not clogging and generally helping.
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16oz refill bottle below
https://www.walmart.com/ip/Dawn-P...9?filters=
Limit 1 per transaction
Dawn Powerwash Dish Soap Spray, Dishwashing Liquid Fresh, 16 fl oz
Now $3.98
Also available for this offer
https://www.walmart.com/ip/Dawn-P.../811213156
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