You sure can! As long as you screw the lid on tightly and check your growler in a bag (the TSA frowns on liquid carry-ons…more’s the pity) you should be set.
The seal is specially designed to withstand pressure changes, so surviving the flight leak-free is no problem. The stainless-steel body design is also shatter-proof, and should be able to withstand even unscrupulous baggage-handlers throughout your journey.
It is actually quite simple: Always rinse your growler as soon as you’ve poured the last beer from it. It takes seconds, but it is critical to avoid having beer residue dry inside your growler and make it harder to clean. Thorough: Visit your local home brew supply shop and pick up a no-rinse sanitizer (we recommend Star San–it is pretty much the industry standard). These are usually very concentrated, so a little bit will last you a long time. Just follow the directions on whichever cleaner you buy, and make sure you always clean your growler soon after use, and before you take it in to be filled. Really Thorough: Get a bottle brush, sponge, or other non-metal cleaning pad to give your growler a real scrub and make it sparkle. Just make sure you don’t use anything too abrasive that could damage the surface of the growler or scrape shrapnel into the container. Keep in mind that when you ask to get a growler filled, you are asking a brewer to give up control of the quality of his or her beer. They work hard to make the best beer possible, so you should treat it with as much respect as possible. Using a DrinkFresh Growler is a good start, but you still have to keep it clean to preserve the flavor and integrity of the beer you put in it. Sure, your bartender might clean your growler for you, but it is best not to take this service for granted, and always present a clean, beer-ready growler for fills.
Our lids have two components: the threaded lid (which actually screws onto the mouth of the growler, and contains the DrinkFresh valve) and the cap (which snaps onto the lid, and has the grey rubber grip around it). To separate, it is best to first screw the lid onto the growler so it is secured. Then, lift the cap on one side. You should feel it POP as it separates from the lower lid. Once you have one side disconnected, just twist and lift on the other side. To reconnect the two modules, simply press the cap firmly down onto the lid until you feel and hear it snap back into place. You can also give it a turn CLOCKWISE to ensure the cap has fully snapped into place. Once you hear the click, you can turn it COUNTERCLOCKWISE to open your growler again.
When we say our growlers are “Double Wall,” we mean that literally: there are two layers of stainless steel surrounding the growler, from top to bottom, separated by a vacuum-sealed layer. This creates a superior insulation that keeps the growler’s contents cold (or hot) much longer than single-layer containers can. Because there is no atmosphere, foam, or any other conductive element in the vacuum-sealed layer, temperatures cannot easily move between the growler and the environment. A hot day won’t cause your beer to get warm, and you don’t have to rush to the refrigerator as soon as your growler gets filled.
All of our growlers utilize a modular lid system with two components: a top cap and the threaded lid. To access the DrinkFresh valve, you must screw the lid onto the growler, and separate the top cap portion. The valve is secured inside the bottom portion of the lid. For more help on opening the lid, see “How Do I Separate My Lid?” under the Lids portion of the FAQ.
Many growlers on the market (as well as mini-growlers, bombers, certain bottles, etc.) employ the Bail Lid, variously called a Swing-Top or Flip-Top lid.
DrinkFresh Growlers, however, utilize internally threaded screw-top lids, for three primary reasons.
1. Not all Screw-Top lids are created equally. At Brew-Tek, we felt the poor reputation of screw-on lids was justified, because most screw-top growlers are not designed to handle real pressure, or prevent leaks. Our lids are machine threaded with four layers of threading, and have been pressure rated to hold up to 87psi. In short, they are designed to succeed where other screw-top lids have historically failed.
2. DrinkFresh technology is made possible in part by our two-module lid system. Not only does it provide a superior, pressure-tested seal, but it allows us to securely attach a Schrader valve for CO2 injection and pressure release. Along with locking in pressure, it can maximize freshness by purging oxygen and replacing it with CO2.
3. Reducing Waste. We mean this both in terms of manufacturing, and in terms of space. The machine-threading process and injection-mold construction of the lids allow us to reduce wasted materials.
It also keeps our manufacturing costs lower, allowing us to pass greater savings on to you. The internal threading also reduces wasted space in your growler. While traditional screw-top lids would cover the externally-threaded lip of the growler, our lids almost function more like corks, going inside the growler and reducing the space between the beer and the lid. Less space means less oxygen can potentially get in touch with your beer. It also means when you get your growler filled, it is truly filled to capacity.
If you have used a CO2 Injector with your DrinkFresh system, you may have added so much pressure that it becomes difficult to remove the lid. Simply press the needle in the center of the valve to relieve the excess pressure. After a second or two, the lid should open easily. If you have replaced the cap portion of the lid improperly, it may not be locking on the lower lid portion. Turn it CLOCKWISE until you feel it click into place, and then proceed to remove the lid. If this does not work, try popping the cap off and reattaching it again, listening closely for the click that means it has connected to the lid.