A stainless steel foam-on-beer detector that stops the pour the instant a keg blows, keeping long-draw lines full and cutting beer waste.
$ 80$ 9011% discount
Shipping calculated separately
Lead time: 2–4 weeks
A FOB (Foam On Beer) detector is an inline stop valve for long-draw draft systems that shuts off flow the moment a keg empties. Instead of letting the line fill with foam, the internal float drops and seals the beer outlet, so the run stays full of pourable beer. That means the next keg goes live without purging and refilling the whole line, and the beer that would otherwise go down the drain stays in the glass.
On a long-draw system the savings add up fast. A venue running 20 kegs a week through a 100-foot draw can waste roughly 46 twelve-ounce pours every week just purging and refilling lines. Fitted with FOBs, that beer is recovered, and the unit typically pays for itself within about six kegs.
Automatic shutoff: beer flow lifts the float; an empty keg drops it and stops the pour immediately.
Simple reset: tap the next keg and press the vent to release trapped gas and foam from the chamber.
Cleanable in place: a float-lifting device holds the float clear so cleaning fluid runs through the detector to the faucet during scheduled line cleaning.
Stainless steel body sized for standard long-draw draft installations.
FOB detectors should be cleaned on the same schedule as the beer lines and never bypassed during cleaning, so every glass reaches the guest clean.
Home brewers running a longer draft line can fit a FOB detector to stop the flow when a keg kicks, so the line stays full of beer instead of foam. Tapping the next keg is as simple as resetting the float and pressing the vent, and the stainless steel chamber cleans in place alongside your regular line maintenance.
Specifications
Material
Stainless Steel
Weight
2.0 kg
Detector size
120 mm
System type
Long-draw draft beer
Operation
Float-actuated automatic shutoff
Frequently asked questions
What does a beer FOB detector actually do?
FOB stands for Foam On Beer. It is an inline device on a long-draw draft system that stops beer flow the moment a keg empties, so the line stays full of beer instead of filling with foam.
How does a FOB detector reduce beer waste?
Because the line stays full of pourable beer when a keg blows, you do not have to purge and refill it before serving from the next keg. On a 100-foot draw dispensing 20 kegs a week that can recover roughly 46 glasses of beer weekly.
How do I reset the FOB after changing a keg?
Tap the fresh keg, then push the vent mechanism to release trapped gas and foam from the chamber. Beer refills the chamber, lifts the internal float, and flow resumes to the faucet.
Can a FOB detector be cleaned in place?
Yes. Each unit has a float-lifting device that holds the float off the beer outlet so cleaning fluid runs through the detector to the faucet. Clean it on the same schedule as your beer lines and never bypass it during cleaning.
How quickly does a FOB detector pay for itself?
On a long-draw system a FOB typically pays for itself in about six kegs by cutting the beer wasted on purging and refilling lines. The exact savings depend on the length of your beer draw.
Is shipping included in the price?
For in-stock items — anything you can add to the cart — shipping is included in the listed price. For made-to-order items, delivery is either free (marked on the product page) or calculated when you place your order, based on destination and volume.
How long does delivery take?
In-stock items typically arrive within one to three weeks. Made-to-order items take three to six weeks, since we work directly with manufacturers and need time for production and logistics before shipping. Your assigned manager confirms a more precise estimate once your order is placed. Please note we can't be responsible for delays caused by customs clearance in the destination country.
Are import duties and taxes included?
In most cases, yes — we aim to ship Delivered Duty Paid (DDP), which means duties and import taxes are handled so you don't face extra charges on delivery. In rare cases we may ship Delivered Duty Unpaid (DDU), where you would settle import charges directly with the carrier — but only when agreed with you in advance.
Do your products come with a warranty?
Yes. Most of our equipment comes with a one-to-two-year manufacturer's warranty covering factory defects and technical faults under normal use; the specific term is stated on each product page. If a defect appears, we arrange a replacement or refund in line with our Exchange & Return Policy, and our team guides you through the claim step by step.
