We don't ask our small-batch hot sauce makers to get each and every sauce Scoville tested as Scoville units are mostly used for peppers, and testing can be a lengthy and sometimes costly process. For sauces, we prefer to use a 1-10 scale, with 1 being themildest hot sauces, 5 formedium hot saucesand 10 for thehottest hot sauces.Keith's Chicken Sauceis a 2/10 with mild jalapeño (2,000 to 8,000 Scoville Heat Units or SHU) and serrano peppers (10,000 to 23,000 Scoville Heat Units or SHU).Burger SauceandTaco Sauceare around 3/10 with a similar pepper blend. Keith's newest hot sauce, Keith's Hot Chicken Sauce is a 4/10 thanks to a handful of ghost peppers (up to 1 million Scoville Heat Units) in each batch. Using only a few per batch and mixing in the sour cream powder ensures each bottle has just-right, medium heat.