Coffee slushies are going viral on social media. Then, you pour the coffee into a Ziploc bag, seal it, and toss it in the freezer. #icedcoffee #coldbrew #coffeetiktok #latteathome ♬ Italian Parmigiano – Kley Kley @thenewyorknest My new favorite summer coffee hack ☕️❄️ no equipment or skills needed! Freeze cold brew in a Ziploc bag (I USE @LA COLOMBE) out all your daily frustrations by aggressively smashing it into a coffee slushy! Basically a homemade coffee slushie without any fancy equipment.