I got a Primus Double Wall Press and Go Loose Leaf Iced Tea Brewer Tumbler with Strainer on Amazon. I love it! I put my Yerba in the main, outer tube, add almost boiling water, steep for 15 minutes. Then in the inner tube I put ice and insert this inner tube into the outer tube, where the strained Yerba comes through. Some of the ice melts right away to make enough liquid for you to drink. I am sensitive to caffeine but I love my tereré. Primula Press and Go