Steep one green tea bag in about six ounces of hot water for three minutes. Remove the bag and let the tea cool completely. To cool it quickly, put it in the fridge. Do not use warm tea, as it will melt your ice quickly and make the drink watery.

In a small glass, mix the pineapple juice, raspberry syrup, hibiscus syrup, and simple syrup if you are using it. Stir until everything blends well. The color should be a nice pink. Taste it and adjust the sweetness or tartness to your liking.

Fill a tall glass to the top with ice. Crushed ice works best because it chills the drink faster and helps keep the layers distinct. Slowly pour the refresher base over the ice to create the bottom layer of your drink. Allow it to settle for a few seconds before adding more ingredients.

Slowly pouring barista-style oat milk over the back of a long spoon held just above the surface of the drink helps the oat milk float on top without mixing in right away. You should see a creamy white layer on top of the pink refresher below.

Add a straw and serve it right away. The best way to enjoy this drink is to sip through all the layers at once for a mix of fruity refresher and creamy oat milk. You can add a pineapple wedge or fresh raspberries on the rim for a nice touch.