# Open/Double Fermentation **URL:** \ **Category:** Brewing Processes\ **Created:** [January 18, 2022, 3:04pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854 "2022-01-18T15:04:03Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 18, 2022, 3:04pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/1 "2022-01-18T15:04:03Z")
Purchased 7.9 gallon ferment bucket, batches brewed are 4.5 to 5 gallons. Next batch will be first open ferment, and hopefully first yeast capture.  Any advice, stories and articles are welcomed ,as I explore this new to me method. > **[Open Fermentation Without the Contamination](https://homebrewanswers.com/open-fermentation/)** > > I’ve read a lot of people making a big deal about open fermentation, especially home brewers thinking anything other than a carboy fitted with a bung and an airlock will lead to infected beer and spoiled brews. Open fermentation makes many people... ---
**Author:** ![denny](https://sea1.discourse-cdn.com/brewersassociation/user_avatar/forum.homebrewersassociation.org/denny/32/13092_2.png) [@denny](https://forum.homebrewersassociation.org/u/denny)\ **Post date:** [January 18, 2022, 3:33pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/2 "2022-01-18T15:33:07Z")
We’ve talked about this on the podcast a few times.  Keep it loosely covered with foil til you get krausen. Remove it once krausen forms. Cover it again when krausen drops. ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 18, 2022, 4:04pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/3 "2022-01-18T16:04:59Z")
This was my Ringwood (WLP005) fermentation.  Finished with high attenuation and no diacetyl: ![i9ofuUu.jpeg](https://us1.discourse-cdn.com/brewersassociation/original/2X/e/e3cbca2fc253115138c05f22f6175af4e590d479.jpeg) ![8lNQM1Y.jpeg](https://us1.discourse-cdn.com/brewersassociation/original/1X/8ad8cd1e89ef53781dc01f003ca39be11d36ca84.jpeg) ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 18, 2022, 4:08pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/4 "2022-01-18T16:08:08Z")
> [@denny](#): > > We’ve talked about this on the podcast a few times.  Keep it loosely covered with foil til you get krausen. Remove it once krausen forms. Cover it again when krausen drops. Thanks My bad, should have been more specific, aware of that process, thanks. The process starts as you stated, then transferred to a secondary fermenter during peak fermentation. ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 18, 2022, 4:12pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/5 "2022-01-18T16:12:43Z")
> [@narvin](#): > > This was my Ringwood (WLP005) fermentation.  Finished with high attenuation and no diacetyl: Nice pic Did you scoop off brown crust, harvested yeast, then transferred to a secondary ? Thanks ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 18, 2022, 4:36pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/6 "2022-01-18T16:36:09Z")
> [@](#): > > > [@narvin](#): > > > > This was my Ringwood (WLP005) fermentation.  Finished with high attenuation and no diacetyl: > > Nice pic > > Did you scoop off brown crust, harvested yeast, > then transferred to a secondary ? > > Thanks I skimmed but didn’t secondary. ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 18, 2022, 4:59pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/7 "2022-01-18T16:59:46Z")
> [@narvin](#): > > > [@](#): > > > > > [@narvin](#): > > > > > > This was my Ringwood (WLP005) fermentation.  Finished with high attenuation and no diacetyl: > > > > Nice pic > > > > Did you scoop off brown crust, harvested yeast, > > then transferred to a secondary ? > > > > Thanks > > I skimmed but didn’t secondary. From your vittles vault where do you transfer to ? Thanks ---
**Author:** ![fredthecat](https://sea1.discourse-cdn.com/brewersassociation/user_avatar/forum.homebrewersassociation.org/fredthecat/32/9872_2.png) [@fredthecat](https://forum.homebrewersassociation.org/u/fredthecat)\ **Post date:** [January 18, 2022, 5:56pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/8 "2022-01-18T17:56:48Z")
subscribed. hope to hear tasting or other notes ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 18, 2022, 6:16pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/9 "2022-01-18T18:16:20Z")
> [@](#): > > > [@narvin](#): > > > > > [@](#): > > > > > > > [@narvin](#): > > > > > > > > This was my Ringwood (WLP005) fermentation.  Finished with high attenuation and no diacetyl: > > > > > > Nice pic > > > > > > Did you scoop off brown crust, harvested yeast, > > > then transferred to a secondary ? > > > > > > Thanks > > > > I skimmed but didn’t secondary. > > From your vittles vault where do you transfer to ? > > Thanks A keg. ---
**Author:** ![majorvices](https://sea1.discourse-cdn.com/brewersassociation/user_avatar/forum.homebrewersassociation.org/majorvices/32/12825_2.png) [@majorvices](https://forum.homebrewersassociation.org/u/majorvices)\ **Post date:** [January 18, 2022, 11:16pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/10 "2022-01-18T23:16:05Z")
> [@narvin](#): > > ![8lNQM1Y.jpeg](https://us1.discourse-cdn.com/brewersassociation/original/1X/8ad8cd1e89ef53781dc01f003ca39be11d36ca84.jpeg) Had I not known better I’d have thought this was cinnamon breakfast cereal ---
**Author:** ![reverseapachemaster](https://sea1.discourse-cdn.com/brewersassociation/user_avatar/forum.homebrewersassociation.org/reverseapachemaster/32/19_2.png) [@reverseapachemaster](https://forum.homebrewersassociation.org/u/reverseapachemaster)\ **Post date:** [January 19, 2022, 4:31am UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/11 "2022-01-19T04:31:02Z")
> [@majorvices](#): > > > [@narvin](#): > > > > ![8lNQM1Y.jpeg](https://us1.discourse-cdn.com/brewersassociation/original/1X/8ad8cd1e89ef53781dc01f003ca39be11d36ca84.jpeg) > > Had I not known better I’d have thought this was cinnamon breakfast cereal I was thinking cheese in a can topped with chili powder. ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 19, 2022, 10:09am UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/12 "2022-01-19T10:09:21Z")
Next batch will be Open/Double fermentation. Never made a starter, will use 1469, and a 1000ml fast pitch starter kit. ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 20, 2022, 1:11pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/13 "2022-01-20T13:11:53Z")
Bottle carbonation is perfect, not removing krausen. Current thought is the krausen that normally falls back in the beer, aids carbonation. If krausen is removed, will this increase the amount of cane sugar that should be used for bottle carbing ? Thanks ---
**Author:** ![erockrph](https://sea1.discourse-cdn.com/brewersassociation/user_avatar/forum.homebrewersassociation.org/erockrph/32/13330_2.png) [@erockrph](https://forum.homebrewersassociation.org/u/erockrph)\ **Post date:** [January 20, 2022, 2:48pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/14 "2022-01-20T14:48:49Z")
> [@](#): > > Bottle carbonation is perfect, not removing krausen. > Current thought is the krausen that is normally > let fall back into beer, aids carbonation. > > If krausen is removed, will this increase the amount of > cane sugar that should be used for bottle carbing ? > > Thanks I’d it aids in fermentation,  it is just because it is more fresh, healthy yeast and not because it is providing unfermented extract. The amount of priming sugar required would be the same. If there is any change in bottle fermentation (and I honestly don’t believe there will), it would be in how fast refermentation and carbonation are completed. ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 20, 2022, 2:50pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/15 "2022-01-20T14:50:52Z")
> [@majorvices](#): > > Had I not known better I’d have thought this was cinnamon breakfast cereal It did look like some kind of extruded breakfast cereal.  Definitely one of the most unique fermentations I’ve had. ---
**Author:** ![fredthecat](https://sea1.discourse-cdn.com/brewersassociation/user_avatar/forum.homebrewersassociation.org/fredthecat/32/9872_2.png) [@fredthecat](https://forum.homebrewersassociation.org/u/fredthecat)\ **Post date:** [January 20, 2022, 3:22pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/16 "2022-01-20T15:22:47Z")
one thing - and truly, not trying to rain on your parade - but what do you think of the health/safety of using an HDPE plastic fermentation vessel? ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 20, 2022, 3:45pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/17 "2022-01-20T15:45:28Z")
> [@fredthecat](#): > > one thing - and truly, not trying to rain on your parade - but what do you think of the health/safety of using an HDPE plastic fermentation vessel? Fermentation buckets, Speidel fermenters & storage tanks, and one gallon of milk, all use food grade HDPE. Not sure about non white (colored), non food grade HDPE. ---
**Author:** ![fredthecat](https://sea1.discourse-cdn.com/brewersassociation/user_avatar/forum.homebrewersassociation.org/fredthecat/32/9872_2.png) [@fredthecat](https://forum.homebrewersassociation.org/u/fredthecat)\ **Post date:** [January 20, 2022, 3:47pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/18 "2022-01-20T15:47:52Z")
> [@](#): > > > [@fredthecat](#): > > > > one thing - and truly, not trying to rain on your parade - but what do you think of the health/safety of using an HDPE plastic fermentation vessel? > > Fermentation buckets, Speidel fermenters & storage tanks, > and one gallon of milk, all use food grade HDPE. excellent, i just wasn’t sure. it has been a while since i read about plastic safety. also, **in canada milk comes in bags.** ---
**Author:** ![system](https://us1.discourse-cdn.com/brewersassociation/original/1X/f1a2211dcb353b921ed70873794a31db2031eccc.png) [@system](https://forum.homebrewersassociation.org/u/system)\ **Post date:** [January 20, 2022, 3:52pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/19 "2022-01-20T15:52:59Z")
> [@fredthecat](#): > > > [@](#): > > > > > [@fredthecat](#): > > > > > > one thing - and truly, not trying to rain on your parade - but what do you think of the health/safety of using an HDPE plastic fermentation vessel? > > > > Fermentation buckets, Speidel fermenters & storage tanks, > > and one gallon of milk, all use food grade HDPE. > > also, > > **in canada milk comes in bags.** I think it’s all about recycling, McDonalds now gives you a paper straw, and cardboard instead of plastic foam packaging. My State is phasing out plastic grocery bags. ---
**Author:** ![denny](https://sea1.discourse-cdn.com/brewersassociation/user_avatar/forum.homebrewersassociation.org/denny/32/13092_2.png) [@denny](https://forum.homebrewersassociation.org/u/denny)\ **Post date:** [January 20, 2022, 4:21pm UTC](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854/20 "2022-01-20T16:21:12Z")
> [@fredthecat](#): > > one thing - and truly, not trying to rain on your parade - but what do you think of the health/safety of using an HDPE plastic fermentation vessel? No problem.  Why should it be? [Next page](https://forum.homebrewersassociation.org/t/open-double-fermentation/31854.md?page=2)