FGs Too High - Where am I going Wrong?

[steve_flack]

Check your hydrometer reads 1.000 in 20C water. I bought one recently that read 6 points too high. Needless to say it went back...

[mysterio]

Check your hydrometer reads 1.000 in 20C water. I bought one recently that read 6 points too high. Needless to say it went back...

I am embarrassed to say I have never calibrated my hydro or spirit thermometer... guess what i'm doing this afternoon

[garwatts]

My current brew (done on Thursday) made under the same conditions is down to 1.012 already. The only difference was I mashed in at 65/66C instead of 68/69C. I use 500g packs of yeast and always over pitch - usually around 15/17 grams of dry yeast. However I will try hydrating the yeast first next time

[simple one]

Try using 2 packs of yeast? Shouldn't need to but they're just not happy in there for some reason. Perhaps more might overcome whatever deficiency there is. I get a quicker more consistent to predicted attenuation using 2x11g packs of rehydrated dried yeast in 1.04x worts.

Agree. More yeast for a fast ferment and a more pronuced end point.

Rehydrate properly to get the full potential of the yeast, and slowly add wort to get a sort of racing starter and minimise shock.

I used to always under pitch, but with a good period of conditioning it will thin out.

[Black_Sheep]

I rehydrate my Nottingham, pop it in a starter with spraymalt and some yeast vit. Leave that somewhere warm whilst brewing. When I am cooling my wort I use a paddle or long handled spoon attached to a cordless drill to give it a stir and aerate. A good thrashing never hurt anyone, mine always goes off like a rocket

[jonewer]

Dont mean to be pedantic here but bear in mind that water will only boil at 100C if its PURE water at SEA LEVEL.

> At altitude, water will boil at LOWER than 100C (It boils at 68C on top of everest, not much of a problem in this country, less you live on top of Ben Nevis)

> In a hard water area, the impurities will cause the boiling point to be HIGHER than 100C

Water will also freeze at different temperatures if its impure...... Thats why the salt the roads in winter, it depresses the freezing point and melts the ice....

Just be aware that your water will not boil and freeze and exactly 100C and 0C.

/CEM101

[harry_mac]

Dont mean to be pedantic here but bear in mind that water will only boil at 100C if its PURE water at SEA LEVEL.

It's not altitude that matters, it's the air pressure. Air pressure naturally varies with weather conditions as well as altitude.

http://www.csgnetwork.com/prescorh2oboilcalc.html