Homebrew needs to be transferred. Sometimes we can get away with pouring wort or beer manually, but for the most part the best way to move liquid around is with a hose or tube.
When you get into homebrewing youll become intimately familiar with tubing. Sometimes you bless it for saving your aching back the trouble of lifting 5 gallons of liquid.
Other times you curse it, like when youre siphoning into a carboy only to realize the end of the tubing curled up and youre now shooting beer across the kitchen.
Tubing comes in all different sizes and varieties. Though we dont think of it as a major tool in our brewing arsenal there are still plenty of decisions we need to make about it. Every time you buy a new gadget that requires tubing you have to make one of these calls.
There have been plenty of times where Ive made the wrong one.
I put together this guide to save you some mental energy and make quick & easy decisions about what tubing to use.
Types of TubingThere are all sorts of materials used for tubing. Here are the most common ones for homebrewing:
This is the cheapest and most basic tubing youll find. Its what the hardware stores carry. Some brands are marked as food grade and others are not. If you have the choice go with food grade. Watts is the brand youll usually find in Home Depot and Lowes, and it is food grade up to its maximum temperature of 175°F.
There is still some hesitation to use this cheap vinyl tubing for beer. I say that it is fine to use as long as its at cool temperatures. Dont use it with hot wort. Also, since the beer is not sitting in the tubing (its only used for transferring) there isnt as much a risk of leaching.
Always make sure to replace your vinyl tubing if 1) The inside becomes dirty and it cant be cleaned, or 2) You notice a plastic-like flavor in your beer. In that case I would switch brands.
The great thing about vinyl tubing is that its cheap and easy to find. The downside is that its notorious for curling at the end. Add an extra foot to whatever length you were going to buy to account for the curling.
Vinyl tubingThis tubing is stiffer than plain vinyl tubing and can handle higher temperatures. Ive used it it but I havent found a great use for this type of tubing. Its much more inflexible than plain vinyl and still cant handle high enough temperatures for use while brewing.
Reinforced vinyl is sometimes used in high pressure systems and commercial draft beer applications, but for most homebrewers its not of much value.
For siphoning I recommend you go with plain vinyl, and for hot wort transfers I recommend you go with this next one.
Reinforced Vinyl TubingThis is my favorite tubing for transferring hot wort. You really want to be selective when choosing tubing for the hot side. I see too many brewers using plain vinyl tubing for transferring hot sparge water. Not good! Use a tubing rated for high temperatures, like silicone.
Silicone tubing comes in many different sizes and can handle temperatures up to 500°F. Its also very flexible and doesnt curl like vinyl tubing does. In fact, Ive tried it out with siphoning and it worked great.
The end of the tubing goes right to the bottom of the keg or bottling bucket and stays there. The downside is that its not clear, but give it a shot sometime and you may not go back to vinyl.
Silicone TubingThough silicone is the most common among homebrewers there are a number of other high temperature brands that people use, including:
This is vinyl tubing but its higher quality than what you buy at the hardware store. Put them side by side and youll immediately notice the difference.
Beverage tubing also has a thicker wall to handle the higher pressures of a draft system. Purchase it from a homebrew store or a draft beer supplier.
Beverage TubingTubing SizesThe size you use is primarily driven by what youre connecting it to, usually either a metal barb or a plastic piece like the end of a racking cane or bottle filler. Sometimes you get a perfect fit and sometimes you need a little help. Theres almost always more than one size tubing that will fit.
If the tubing is too small then put the end of it in very hot water. It will make it flexible and youll be able to push the tubing onto the barb or racking cane.
If the tubing is too large then use a clamp. I always have a plastic bag filled with worm clamps just in case. Its a good practice to clamp every tubing connection just to be safe.
Every brewer should have a bunch of clamps on hand in various sizes.The good thing about larger tubing is that you can transfer the liquid more quickly. I use 1/2 on the hot side and it takes no time at all to transfer between my hot liquor tank, mash tun, and boil kettle. The downside is you are more prone to air bubbles if its not a great fit.
The reverse is true with tubing that is smaller. It will take longer to transfer but youll get less air bubbles. This is especially important on the cold side where you dont want to aerate your beer.
3/8 tubing is most often recommended for siphoning but you can usually use 5/16 as well. Ive found you get much less air bubbles by squeezing on 5/16 tubing. It just takes longer to transfer.
Tip for getting a good flow on the hot side: If youre using larger tubing always make sure its the right size for the fitting.
For example dont use 1/2 tubing on your boil kettle when the hose barb coming out the valve is only 3/8. Youre going to get a bunch of bubbles and poor flow. Assuming youre tubing is the right size, here is a tip for getting a good flow:
Once the liquid gets below the valve in the kettle it will create a siphon via the pickup tube in the kettle (if you have one). If you keep the end of the tubing low and prevent air bubbles youll get the most liquid possible out of the kettle.
Cheat SheetThe above is pretty lengthy so if youre saying to yourself Just tell me what to use!, here you go. This is a cheat sheet for various brewing applications. Im assuming youre brewing the typical 5 gallon batch.
For transferring hot wort during brew day use 1/2 silicone tubing. Make sure to use 1/2 valves and barbs along with worm clamps. Alternatively you can use the tubing with quick disconnects like what I use on my Brutus 10. 3/8 fittings and tubing is common on homebrew setups but if you go up to 1/2 youll thank me for it, trust me.
For your pump youll want to pay close attention to the PSI rating of the tubing. It must be able to handle the pressure from whatever pump you are using. For March pumps (most common) most homebrewers use the silicone tubing mentioned above. Thats what I use and it works great.
For your siphon use the 3/8 auto-siphon with 3/8 vinyl tubing along with a worm clamp. If youre impatient you can go with the 1/2 version.
For your bottle filler use 3/8 vinyl tubing along with a worm clamp (if you get bubbles, but its usually a good fit).
For blow-off tubes it really depends on the fermenter and the size of the rubber stopper you are using. I recommend you take your stopper into the hardware store and find the right size of vinyl tubing that will snugly fit into the hole in the stopper. Alternatively, you can ditch the stopper altogether and get a very large piece of tubing that fits directly into the neck of a carboy.
For your beer line use 3/16 vinyl beverage tubing. Make sure its the high quality stuff from a homebrew store. Dont use hardware store tubing.
For your CO2 line use 5/16 vinyl beverage tubing. You have a choice here between red, blue, or clear. Personally I prefer the colored tubing because I can easily distinguish it from my beer line. That really comes in handy when I have 5 kegs hooked up in my kegerator. Some people prefer clear because they can see if beer is backing up into the gas line from the keg. Its up to you.
Tangled Up in TubingI know, it can really add up, especially for a gadget geek like me. Its also a pain in the ass to deal with and store. The best way Ive found to store it is on a pegboard. It gets it out of the way and allows the water to drain. Heres mine:
A good way to store your tubingFrequently Asked QuestionsVinyl tubing is commonly used in homebrewing, especially for transferring liquids. While its affordable and readily available, its essential to choose food-grade vinyl tubing.
This type ensures that its safe for use with consumables. However, its recommended not to use vinyl tubing with hot wort, as it might not withstand high temperatures.
If you notice any plastic-like flavor in your beer or if the tubing becomes dirty and cant be cleaned, its time to replace it.
Silicone tubing is a favorite choice for transferring hot wort in the brewing process. It can handle temperatures up to 500°F and is highly flexible.
Unlike vinyl tubing, silicone doesnt curl, making it efficient for siphoning. The only drawback is that its not transparent, so you cant see the liquid inside.
To achieve a smooth flow when transferring hot wort, ensure that the tubing size matches the fitting. For instance, dont use 1/2 tubing if the hose barb from the valve is only 3/8.
To prevent air bubbles and achieve a good flow, pinch the tubing a few inches from the valve, pull it down below the valve, and slowly open the valve. Once the liquid level goes below the valve in the kettle, a siphon effect will help transfer the maximum amount of liquid.
If the vinyl tubing is too small for the connection, immerse the end in hot water to make it more flexible, allowing it to fit onto the barb or racking cane.
If the tubing is too large, use a clamp to secure it. Its a good practice to clamp every tubing connection for safety.
For beer lines, its advised to use 3/16 vinyl beverage tubing. This tubing is of higher quality than the ones available at hardware stores. Always opt for high-quality tubing from a reputable homebrew store or draft beer supplier to ensure the best results.
Lead marketer, brewer, dad, and husband. Pretty much an all-round awesome guy. Self proclaimed coffee addict whos been home brewing beer (among other things) for 25+ yrs. Also an aspiring pro-brewer and micro-brewery owner!