Smoothie Straw (1 ratings) Stainless steel straw for smoothies £1.99 Out of stock. Enjoy your favorite smoothie without contributing to plastic waste. Goodbye plastic straw, hello reusable smoothie straw! Best for cold beverages, cocktails, and sodas Safe to put in the dishwasher Switch to a steel straw, the best eco-friendly alternative to harmful plastic straws. No metallic aftertaste! Our steel straw contains nickel. Nickel is corrosion-resistant, thus it makes the straw longer lasting. However, take care if you’re allergic to nickel.