BlenderBottle($8.49, $8.99, blenderbottle.com)
Test Impressions: It’s more “shaker” than blender, but that’s good when every inch of storage space is valuable. The simple BlenderBall wire whisk helped us shake up some creamy smoothies using frozen fruit and a little milk. It has stood the test of time, as one of our BlenderBottles is now six years old.
Upsides: We found it the most convenient of all — just tighten down the top and give your arm a workout. * No-sweat cleaning (rinse it out) and stowing (toss it in a cooler) makes it boat-ready. * It’s perfect for powdered mixes.
Downsides: It doesn’t break down ice (you still need a blade and something stronger than a forearm for that). * Fruit chunks go to the bottom instead of blending in. * We made the mistake of shaking up warm coffee — pressure built up and popped the top.
Recommendation: Keep it stowed out of the sun when a drink is in it, or you might need a mop.