Sour sweets are just like fizzy sweets but this time, they have a secret added ingredient that changes the taste completely! These sour sweets aren't for the faint hearted, these are seriously sour tasting that will rock your mouth. Toxic waste is one of the best selling sour confectionery products that we stock with mega sour boiled sweets from Barnetts joining them up there with a range of super sour sweets.