Please note:  The lye is packaged in a 1 kg container and then placed in a plastic bag for sealing.  The plastic bag IS NOT inside the container.

Potassium hydroxide, also known as potash, is an inorganic caustic base used for liquid soap making. We carry potassium hydroxide in a flake form which is easy to handle and recommended for most liquid soap making recipes.

Our Potassium Hydroxide is 90% pure.

The shelf life of potassium hydroxide is at least one year, if the product is stored properly, in its original container, in cool (<80 F), dry, place and exposure to moisture and sunlight is avoided.​​​​

Due to its dangerous goods classification, we only ship Potassium Hydroxide within Canada and by ground courier.  There is a $38.00 Dangerous Goods Charge applied to all orders.  This is per SHIPMENT not per piece.   Smaller sizes are exempt as they are considered limited quantity by Transportation of Dangerous Goods Regulations. IF YOU ARE PICKING UP YOUR ORDER AT OUR WAREHOUSE, WE WILL ISSUE A REFUND FOR THIS HAZMAT SERVICE CHARGE.

This product cannot be shipped via Canada Post.  Please choose Loomis GROUND as your shipping carrier during the checkout process.  This product can not be shipped using EXPRESS shipping methods due to its hazmat status.