Slipknot No. 9 Small Batch Iowa WhiskeySlipknot has collaborated with the award winning Iowa based Cedar Ridge Distillery to bring the world an original whiskey rich in Iowa roots, No. 9 Iowa Whiskey. Made with homegrown Iowa corn featuring a sweet and spicy flavor and finished with a bold flavor at a higher 90% proof, Slipknot No. 9 Iowa Whiskey achieves a more complex robust sipping whiskey that tastes like the hard work and quality youve grown to expect from Slipknot and Cedar Ridge.