Every number is Russ’s own rating out of 10. Russ has previously stated that he never scores in sponsored videos, so the food he reviews carries no applied pressure or bias.
Double Stuff Sour Patch Kids Oreos with a lime biscuit and Sour Patch lime crème; he also tried the mini version before rating. He says they taste like Froot Loops with a sour twang and gives them 8/10, matching the on-screen graphic.