The toddler mouthpiece designs are widely varied, unlike the spouts for transition cups. For toddler cups in our tests there were 3 cup-like edges, 5 soft spouts, 4 straw cups, and 9 hard spout cups; the interestingly had a hard spout, but one valve and one straw options for a more versatile cup.
The straw mouthpiece was more common in the toddler cups than transition cups. as the ADA feels they can increase oral hygiene by decreasing the amount of liquid that comes in direct contact with teeth. The straw cups in our tests didn't generally do well in the leak tests, but they all were easy to drink from, and came with some kind of closeable attached lid to help prevent leaks.
Sticking with one of the straw cups eliminates the valve issue altogether in toddler cups. Straws also reduce the amount of liquid that comes into contact with teeth. These cups usually come with a lid of some kind that keeps the straw clean, and aids in preventing leaks.
Toddler cups come in a wide range of component types and number of parts. Some of the cups were easy to assemble no matter how many parts they had, and other cups had us scratching our heads with just three parts to figure out. While most of the cups required a basic bottle brush to clean (especially the longer thinner cups), the straw cups needed a special straw brush to ensure proper cleaning. The , actually required the purchase of an additional cleaning kit! Lower scores were given to the cups that required the most intensive cleaning, number of tools, or time to assemble.