
Lye & Soap AdditivesEssential Depot
Essential Depot Potassium Hydroxide Flakes (KOH)
Essential Depot's potassium hydroxide flakes are a reliable, high-purity lye choice for soap makers focused on liquid and cream soap production.
- High-purity liquid soap lye
- Fast-dissolving flakes
- Reliable saponification results
- Purity90%+ KOH
- FormFlakes
- Available Sizes1 lb, 5 lb, 10 lb, 25 lb, 50 lb
Affiliate link: we may earn a commission at no extra cost to you.
Overview
What it is & how it performed
Essential Depot Potassium Hydroxide Flakes are a premium-grade caustic alkali formulated specifically for soap makers who want reliable, high-purity results in their liquid and cream soap projects. Unlike sodium hydroxide, which produces hard bar soaps, potassium hydroxide is the go-to alkali for crafting soft, luxurious liquid soaps, shaving creams, and cream soaps that lather beautifully and rinse clean. Essential Depot sources and processes these flakes to a high purity standard, ensuring consistent saponification values so that soap makers can trust their lye calculations batch after batch. The flake form dissolves readily in water, making it easier to work with compared to pellets or prills, and reducing the risk of clumping during the mixing stage of your soap-making process.
Soap crafters, both hobbyist and small-batch commercial producers, appreciate this product for its versatility in recipes ranging from castile-style liquid soaps to more complex formulations involving coconut oil, olive oil, and other saponifiable fats. Because potassium hydroxide creates a soap paste that can be diluted to the desired consistency, it gives makers precise control over the final texture and concentration of their liquid soap, something bar soap alone cannot offer. Essential Depot packages these flakes with soap makers in mind, offering various quantities to suit everyone from those testing new formulations in small batches to those scaling up production for farmers markets, boutique retail, or online soap shops. The flakes are shelf-stable when stored properly in a cool, dry place away from moisture, preserving their potency for future soap-making sessions.
Safety and quality go hand in hand with this product, and Essential Depot provides potassium hydroxide flakes that meet the rigorous demands of the soap-making community, where precise pH and saponification control directly affect the safety and quality of the finished bars or liquids. Experienced soap makers value the flakes for their predictable reaction times when mixed with water and oils, allowing for smoother trace development and more consistent curing outcomes in liquid soap formulations. Whether you are formulating a gentle facial cleanser, a moisturizing hand soap, or a robust all-purpose liquid soap for household use, Essential Depot Potassium Hydroxide Flakes deliver the chemical reliability that soap making enthusiasts depend on to transform simple oils and fats into effective, skin-friendly cleansing products.
Key features
- High-purity 90%+ potassium hydroxide flakes
- Ideal for liquid soap and cream soap making
- Also suitable for lye-based bath bomb and cosmetic formulations
- Resealable heavy-duty packaging to prevent moisture absorption
- Available in multiple sizes from 1 lb to 50 lb
Specifications
Spec sheet
- Purity
- 90%+ KOH
- Form
- Flakes
- Available Sizes
- 1 lb, 5 lb, 10 lb, 25 lb, 50 lb
- Solubility
- High, dissolves rapidly in water
- Recommended Use
- Liquid and cream soap making
Bench scores
How it scored on the bench
Pros & cons
The good and the fiddly
What we liked
- Dissolves quickly and cleanly in water
- Produces a clear, high-quality liquid soap paste
- Consistent purity supports predictable saponification values
- Good value per ounce compared to small craft-store lye
- Packaging arrives sealed and well protected from moisture
Watch out for
- Highly caustic and requires careful safety handling
- Not pre-measured, so accurate scale and SAP calculations are needed
- Can clump if exposed to humid air during storage
- Shipping restrictions apply in some regions due to hazardous material classification
Maker reviews
What other makers say
Perfect for liquid soap batchesI've used this KOH for over a year now making liquid castile soap. It dissolves fast and gives a clear paste every time. Highly recommend for serious soap makers.
Great purity, watch the humidityWorks exactly as expected for my SAP calculations. Only issue is it clumped a bit after opening in humid weather, so I now store it with a desiccant packet.
Consistent results every batchSwitched from a smaller supplier and noticed my liquid soap consistency improved immediately. This KOH is reliable and the resealable bag is a nice touch.
Good value in bulkBought the 10 lb bag and it lasted me many batches. Just make sure you have proper safety gear since it's strong stuff, but performs great.
The verdict
Essential Depot Potassium Hydroxide Flakes (KOH)
Essential Depot's potassium hydroxide flakes are a reliable, high-purity lye choice for soap makers focused on liquid and cream soap production. The consistent concentration makes saponification calculations dependable, and the packaging helps maintain shelf life when stored properly. As with any lye, safety gear and careful handling are essential, but experienced and intermediate soap makers will appreciate the quality and value this product offers.
Check price on AliExpressKeep browsing
You might also pour
Lye & additivesEssential DepotEssential Depot Cold Process Lye - 99% Pure Sodium Hydroxide
- 99% pure sodium hydroxide
- Fast-dissolving beads
- Reliable for CP soap
Purity99%+ NaOH
4.6Review
Lye & additivesNurture SoapNurture Soap Sodium Lactate Liquid
- Faster unmolding times
- Harder, sturdier bars
- Small dose needed
Concentration60% sodium lactate solution
4.6Review
Lye & additivesSky OrganicsSky Organics Kaolin Clay Powder
- Adds silky lather
- Hardens soap bars
- Gentle skin-safe clay
Purity100% Pure Kaolin Clay
4.5Review
Soap basesSFICSFIC Shea Butter Soap Base
- Rich moisturizing lather
- Smooth low-sweat melt
- Ideal for skincare bars
Base TypeMelt and Pour
4.5Review