How to Kettle Sour Homebrew with Grainfather G40

Kettle souring is a popular technique for making sour beers quickly and with less concern for contamination in your homebrewery, and gose is one of the first styles we find people brew to learn the process. Our coworker William makes a LOT of gose homebrew, so we thought it would be fun for him to put his kettle sour skills to work using the new Grainfather G40 to brew a 10-gallon split batch of two very different variants of our Duck Duck Gose homebrew recipe kit. With the G40's built-in temperature control and timer, it seemed like a great tool to use for the job. In this video, William shared what he learned during the process and samples the two beers he fermented. #kettlesour #homebrewing #grainfather
00:00 - Intro
02:09 - Enter Info in G40 App / Mash In
05:07 - Drain Wort / Sparge
05:47 - Short Boil to Sterilize Wort
06:15 - Cool Wort to Kettle Sour Temperature
07:15 - Pitch Lactobacillus
08:21 - Begin Kettle Sour Stage
11:33 - Full Boil Brew Day
12:05 - Cool Wort to Yeast Pitch Temperature
12:42 - Batch #1: Dry-Hopped Gose
13:48 - Batch #2: Mango Chile Gose
16:14 - Final Thoughts
Grainfather G40 Video Series:
• Grainfather Brewing Sy...
Grainfather G40 Info/Product Page:
bit.ly/3AEa88I
Kettle Souring 101 - How to Brew a Kettle Sour Beer:
• How to Brew a Kettle S...
Duck Duck Gose Beer Recipe Kits:
* Extract - bit.ly/3H0ZV8J
* All-Grain - bit.ly/3FZRLfr

[@NorthernBrewerTV]

Grainfather G40 Video Series: czcams.com/play/PLgOVeEqw5B8PRP6-r8dlO3T-TWJT1nIbe.html
Grainfather G40 Info/Product Page: bit.ly/3AEa88I
Kettle Souring 101 - How to Brew a Kettle Sour Beer: czcams.com/video/-uWRqTlt2bk/video.html
Duck Duck Gose Homebrew Recipe Kits: Extract (bit.ly/3qXzH14) and All-Grain (bit.ly/3FWzTC1)

[@bbiillyy012]

This is such a great brew and guide. Love the video. Big fan on Gose’s as awell

[@JessicaNeidingHaverly]

Yep, ok I'll be making this in 3 weeks.

[@NorthernBrewerTV]

Coincidentally, you posted this comment three weeks ago. So.... you brewing today? :)

[@JessicaNeidingHaverly]

@@NorthernBrewerTV last weekend! 🤞

[@Trapped_under_ice_brewing]

Would it be better to leave the G40 on overnight to maintain that temperature?
Also does brewing a sour risk future brews in that particular piece if equipment?

[@NorthernBrewerTV]

Regarding the first question, this is directly from William: "Dealers choice. If I remember it did drop a to the low end of the temp range so I briefly heated it back up in the morning. Setting it to run overnight will help make sure the lacto stays nice and happy, during colder month like now, and should help get the wort soured more quickly which is ideal."
Regarding your second question: the beauty of the kettle sour method is that you create the lacto tartness up front and then boil the wort which pretty much sanitizes a lot of the equipment involved as that tartness is "locked in" the wort. That being said, you definitely want to run a thorough cleaning/sanitizing cycle on your all of your equipment. If you are concerned, just to be safe, glass and stainless are easy to clean and sanitize and make sure there is not contamination -- and then just have a seperate set of plastic pieces (air locks, beer thief, etc.) denoted for sour beers. But by and large this is not an issue specifically with kettle souring.
Hope all of this helps!

[@globalscott5864]

*** BUYER BEWARE *** If your G40/S40 craps out, like my G40 did on it's 6th brew, GF WILL NOT REPLACE YOUR FAULTY UNIT UNDER WARRANTY!!!!!!
Don't buy into this hype, this company doesn't give a crap about you as a consumer.
They are currently trying to fix it while it sits on my kitchen floor... not sure osmosis is what's required here...
*** BUYER BEWARE ***