Convenient tool for sampling your brew. Simply sanitize and insert into your carboy or fermenting bucket and touch the bottom. The valve will open on the bottom and fill The Thief. You can then analyze through the clear acrylic, or insert your hydrometer directly into The Thief. To empty, simply push the pin against the neck or edge of your fermenter and let it drain.
Saves time, energy, and you never waste any beer while testing!