Reviews you can trust.
See why.Mason Jar Drinking Lid
This device turns canning jars into hipster-y beverage cups.
What You Need To Know
This thick, BPA-free plastic lid is designed to turn regular and widemouthed canning jars into spill-free drinking vessels. Simply secure the lid in place with a metal canning band and pop a straw into the raised diamond-shaped opening (which can also be used for sipping). However, we found that this hipster-y product wasn’t especially practical. Tightening the band around the lid did create a leakproof seal, but unlike with many conventional water bottles, this lid’s opening cannot be closed to stop spills. What’s more, it can’t transform a jar into a hot drink mug; the plastic lid is heat-resistant, but the glass isn’t insulated and will burn your hand. We’ll stick with turning canning jars into tumblers, not thermoses.
Everything We Tested
Recommended with reservations
- Function: 1 stars out of 3.
- Ease of Use: 3 stars out of 3.
This reusable lid turns a Mason jar into a tumbler and proved easy to use and clean. The diamond-shaped “Straw-Tek” opening fits a thin plastic straw. Unfortunately, using a Mason jar as a travel mug doesn’t quite work, since the glass lacks insulation and will be too hot to hold when filled with a hot beverage. Also, the opening doesn’t have a closing mechanism, so it can’t be sealed for transport.
Reviews you can trust
The mission of America’s Test Kitchen Reviews is to find the best equipment and ingredients for the home cook through rigorous, hands-on testing.