2 pack of 1kg jars (with child resistant safety lids) of 100 Sodium Hydroxide Micropearls. Also known as Lye Caustic Soda NaOH. This product is food technical grade. Sodium Hydroxide is commonly used to make soap, is an ingredient in many drain and oven cleaners, and is used to give pretzels their crispy crust. Product of Canada. Ensure to carefully follow safety handling instructions on product label and QR Code to SDS Sheet.2 x 1kg jars (2kg total). Used to make soap, is an ingredient in many drain oven cleaners, and to give pretzels their crispy crust. Product of Canada. Food Technical Grade Kosher. Packaged with child resistant safety lids. 100 Sodium Hydroxide Micropearls (Lye Caustic Soda NaOH).