Yokohama Beer to Tap New S4 Collaboration "Super Sonic Speed Sour" on March 16
Yokohama Beer Brewery (Kanagawa) announced the start of service for its limited-edition beer "Super Sonic Speed Sour" in an Instagram post titled "Yokobi x S4." Draft beer will be tapped at 4:00 p.m. on March 16, 2026, and canned draft beer sales are scheduled to begin at 4:00 p.m. on March 17.
Hop BroBreaking news: Yokohama Beer Brewery is releasing a new S4 collaboration, "Super Sonic Speed Sour"! Draft beer taps on March 16 at 4:00 p.m., and canned draft sales start the next day, March 17 at 4:00 p.m.!
MugiWhoa! The name alone sounds fast! And if it’s a sour, does that mean tart and super drinkable?
Hop BroExactly. It’s a Fruit Sour Ale. With ABV 4.0, it’s light, and IBU 3 means the bitterness is kept really low, so it’s designed to go down easy in spring.
MugiABV and IBU just turned into a spell! What are those?!
Hop BroABV is alcohol by volume, and IBU is a measure of bitterness. So this one is basically "easygoing and not bitter." Very beginner-friendly!
MugiNice! I like that! But is the "Super Sonic" part pushing the flavor too?
Hop BroThe recipe is interesting: lemon and bergamot build a layered citrus profile. And instead of using Philly Sour on its own, they pitched their standard ale yeast, No.1056, at the same time.
MugiAt the same time!? Dual-wielding yeast!? The beer is basically forming a band! So what does it taste like?
Hop BroThey added lactose to round it out, landing on a mellow sour that’s tart and bright without being too sharp. The brewer’s comment says it’s a re-interpretation of a previous batch, which is pretty exciting. And on tapping day, Head Brewer Ida is scheduled to appear at the first-floor beer stand around 7:30 p.m.!
MugiIt’s packed with info, but the drink is light too. Perfect! Let’s go to UMAYA for draft beer prep, then do a canned-release encore the next day! I want to drink it right now!
In an Instagram post from Yokohama Beer’s main restaurant, UMAYA, the brewery announced a new addition to its Brewers One Series: "Super Sonic Speed Sour." The style is Fruit Sour Ale, with specs of ABV 4.0 / IBU 3, making it a light, easy-drinking beer.
This post framed the release as a collaboration under the theme "Yokobi x S4," with the tapping set for 4:00 p.m. on Monday, March 16, 2026. It also announced that canned draft beer will go on sale from 4:00 p.m. on Tuesday, March 17. On the day of the tapping, Head Brewer Ida, who handled the brew, is expected to appear at the first-floor beer stand around 7:30 p.m., offering visitors a chance to hear the story behind the beer directly.
A key recipe point is its citrus profile, built around lemon and bergamot. While making use of the refreshing aroma derived from bergamot, the yeast is not limited to Philly Sour alone; Yokohama Beer’s standard ale yeast, No.1056, was pitched at the same time. Lactose was also used to keep the acidity from becoming too sharp, resulting in a mellow sour character. The brewer’s comments also describe it as a beer that aims to reinterpret and update a previous batch.
Yokohama Beer Brewery, based in Kanagawa, has continuously released a wide range of styles, from core beers to limited editions. Brewers One Series, which highlights the individual exploratory themes of each brewer, is one of the brewery’s best ways to experience that flexible approach to beer-making. This "Super Sonic Speed Sour," with its low alcohol content and layered citrus character, is one to watch as a springtime beer.
Information may be inaccurate. Please refer to the brewery’s official channels for the latest details.
Hop BroBreaking news: Yokohama Beer Brewery is releasing a new S4 collaboration, "Super Sonic Speed Sour"! Draft beer taps on March 16 at 4:00 p.m., and canned draft sales start the next day, March 17 at 4:00 p.m.!
MugiWhoa! The name alone sounds fast! And if it’s a sour, does that mean tart and super drinkable?
Hop BroExactly. It’s a Fruit Sour Ale. With ABV 4.0, it’s light, and IBU 3 means the bitterness is kept really low, so it’s designed to go down easy in spring.
MugiABV and IBU just turned into a spell! What are those?!
Hop BroABV is alcohol by volume, and IBU is a measure of bitterness. So this one is basically "easygoing and not bitter." Very beginner-friendly!
MugiNice! I like that! But is the "Super Sonic" part pushing the flavor too?
Hop BroThe recipe is interesting: lemon and bergamot build a layered citrus profile. And instead of using Philly Sour on its own, they pitched their standard ale yeast, No.1056, at the same time.
MugiAt the same time!? Dual-wielding yeast!? The beer is basically forming a band! So what does it taste like?
Hop BroThey added lactose to round it out, landing on a mellow sour that’s tart and bright without being too sharp. The brewer’s comment says it’s a re-interpretation of a previous batch, which is pretty exciting. And on tapping day, Head Brewer Ida is scheduled to appear at the first-floor beer stand around 7:30 p.m.!
MugiIt’s packed with info, but the drink is light too. Perfect! Let’s go to UMAYA for draft beer prep, then do a canned-release encore the next day! I want to drink it right now!
