Hard Truth Sweet Mash Rye Whiskey is Hard Truth’s debut sweet mash whiskey, a culmination of years of careful planning and precise crafting. The result is a complex, pleasant, quality rye that we’re excited to share with the world. Sweet mash is the distilling process in which each batch of whiskey begins with entirely fresh ingredients. Mash bill one features 94 percent rye and 6 percent malted barley.