Rizla Flavour Infusion Cards Rizla Infusion cards are an innovative solution crafted in anticipation of the menthol ban set for May 2020. To infuse your cigarettes or rolling tobacco with flavor, simply place a flavor card into your pack and let it sit for 60 minutes. For those who prefer a bolder taste, extend the infusion time. The Rizla Flavour Infusions line offers two distinct choices – Menthol Chill for a robust, invigorating experience, and Fresh Mint for a gentler, soothing taste.