Pressure-actuated valve eliminates drip-through, letting you experiment with grind size and brew time for greater recipe creativity. Create hundreds of uniquely delicious recipes with the AeroPress Flow Control Filter Cap. This innovative accessory uses a pressure-actuated valve to eliminate drip-through and maximize control over the brew process, allowing you to experiment with any grind size or brew time. FEATURES One Flow Control Filter Cap included per pack; Pressure-actuated valve eliminates drip-through for full brewing control; Compatible with AeroPress Standard size coffee makers; Experiment with any grind size or brew time for personalized recipes; Enables espresso-style brewing with crema when used with paper filter and dark roast; Ideal for regular coffee, cold brew, or drinks like americano, macchiato, and latte; Allows drip-free transfer from cup to counter; Made from BPA-free and phthalate-free materials; Made in the USA; Note: AeroPress coffee maker and paper filters not included.