$127 for Six-Hour Drink Trailer Rental from Park 'N Pour ($250 Value)

Sacramento

Value Discount You Save
$250 49% $123
Give as a Gift
Limited quantity available
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In a Nutshell

Clients fuel outdoor parties with a trailer that dispenses beverages from outside pressurized taps

The Fine Print

Promotional value expires 240 days after purchase. Amount paid never expires. Valid only within 30 miles of zip code 95630. Subject to availability. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Limit 5 per person, may buy 1 additional as gift. Must use promotion value in 1 visit. 7 day advanced reservation required. Beverages not included in this Groupon, must be purchased separately. Trailer must be within 300 ft of electrical power (20 amp). Must sign waiver. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

Beer Kegs: Inside the Stainless-Steel Party Staple

American, German, and English beers all have different tappers. Learn why with Groupon’s examination of how beer kegs work.

When we go to a restaurant and order a draft beer, we take it for granted that we’ll get a cold drink that doesn’t have too much foam or taste flat. But a lot of science goes into making sure a customer gets the perfect pour from a keg. Stainless-steel kegs are airtight, which keeps the beer from becoming flatter than a pancake stretched over Kansas. Inside a keg, a long metal tube called a spear reaches from the top of the keg almost to the bottom. Beer travels up from the bottom of the keg through the spear and out through the tap at the top.

The beer defies gravity and flows out of the tap with the help of pressure. The average party keg uses the aptly named party pump to pump air into the keg and create pressure. When this tap is pumped a few times, it builds up enough air pressure to force the beer up and out of the tap. This air pumped into the keg kills the beer’s flavors and aromas over time, and the beer goes flat in a day or two. So though a party tap works for frat parties and jury meetings, it is not an option for a restaurant, which might take several weeks or months to go through a single keg.

Restaurants feed pressurized CO2 or nitrogen, depending on the beer, into the keg at a constant rate to maintain the pressure inside. A specialized tap called a coupler, designed for kegs pressurized with gas, pumps the beer out of the keg. There are different types of taps for American beers, German beers, and English beers, because different beers need different amounts of pressure thanks to differences in aroma and flavor. More aromatic and flavorful beers are less carbonated, so they need less pressure to maintain their low carbonation level—hence, the different tap systems.


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