BjarkeH Posted August 10, 2011 Share Posted August 10, 2011 hi i have a question. What happens to ones brew if you take a hydrometer test with in the 3 days while its starts the fermations? and what happens if you allson to one on the 4 and 5 day Link to comment Share on other sites More sharing options...
Guest Posted August 10, 2011 Share Posted August 10, 2011 erm... you get two readings? The first one you should take is before you add the yeast (OG Reading), the second about 3-4 days later (SG Reading). Third reading at about a week, and then about 3-4 days after that to make sure it's finished (FG Reading). These readings are just a way of confirming that ferment has started and finished, no need to take them all the time. Yob Link to comment Share on other sites More sharing options...
Guest Posted August 10, 2011 Share Posted August 10, 2011 Unless I think fermentation has stalled, I only take an OG before pitching yeast then about 8 days later I'll take another reading then again 24 hours after in hope for a FG. Unless there are fermenting problems I really can't see why any more readings are required. Link to comment Share on other sites More sharing options...
Guest Posted August 10, 2011 Share Posted August 10, 2011 There is sound thoury behind taking regular readings to know how the yeast are performing, more important with re-use of yeast than pitching dry IMO Theory being that if your yeast has a known performane with temps x SG reading x Days in FV you can get a 'feel' for how thay are doing. Some people (myself included) like to know these stats as it can help with future brews with the same yeast. Without a refractometer though it must be said that the amount of beer needed to take "samples" for this is huge and not reccomended. This is why I settle on about 4 readings or so per brew, cross referenced with date and temps, this gives a "scale" of how the yeast perform. ie: If I have data that says a particular yeast ate it's way though 20 points in 3 days and the next time I use it it only gets through 15 (in the same time at the same temps and same sort of brew) then I will know that yeast is getting a little tired and it may be time to put them out to pasture (compost) at the end of the brew. er... hope I explained that clearly.. Yob Link to comment Share on other sites More sharing options...
Guest Posted August 10, 2011 Share Posted August 10, 2011 yep... in a nut shell mate. [cool] Personally I am not worried at this point in time about how my yeast goes from one brew to the next. Provided they do their job then I am happy [biggrin] Link to comment Share on other sites More sharing options...
Guest Posted August 10, 2011 Share Posted August 10, 2011 some of us are a little more... anal.. no... fanatical... no... OCD about these things[lol] Link to comment Share on other sites More sharing options...
LeonardC2 Posted August 11, 2011 Share Posted August 11, 2011 Since I've been using cooper's OS cans as a base with 3lb bags of plain DME & various hops,I wait till 2 week mark to take a 1st FG reading. This after an OG reading of course. Then,if it's close to projected FG,I'll wait 3-5 days,& take another. If it's the same or down a point or so to projected FG,I'll dry hop a week,or bottle. But with a standard cooper's kit package,as my English bitter,it hit FG in 12 days. Gotta check it tomorrow,& if it looks solid,it gets bottled. Link to comment Share on other sites More sharing options...
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