Hydrometer reading temp adjustments - Home Brew Forums
Register Now For Free!

 Home Brew Forums > Hydrometer reading temp adjustments

01-06-2013, 03:12 PM   #1
ifearnothing0
Recipes

Feb 2012
Posts: 208
Liked 7 Times on 7 Posts

I went to a random hydro temp calculator , and put in the most ridiculous temperatures to find out how much a reading can change , and even going from near freezing to 159 there is only a few hundreds of a point different in the readings . Is this right ? .. I always thought it would change much more than that

01-06-2013, 03:21 PM   #2
GotPushrods

Recipes

Jul 2012
Phoenix, AZ
Posts: 588
Liked 151 Times on 102 Posts

Since we read to the thousandths when taking a reading, yeah, it's significant.

1.050 could be 1.035 or 1.070. Temperature correction is very important.

01-07-2013, 11:01 PM   #3
ifearnothing0
Recipes

Feb 2012
Posts: 208
Liked 7 Times on 7 Posts

Quote:
 Originally Posted by GotPushrods Since we read to the thousandths when taking a reading, yeah, it's significant. 1.050 could be 1.035 or 1.070. Temperature correction is very important.
What I was referring to was unless your temps are 100f off your hydrometer is only gonna be a few small 0.000's off , no ?

01-07-2013, 11:10 PM   #4
GotPushrods

Recipes

Jul 2012
Phoenix, AZ
Posts: 588
Liked 151 Times on 102 Posts

Quote:
 Originally Posted by ifearnothing0 What I was referring to was unless your temps are 100f off your hydrometer is only gonna be a few small 0.000's off , no ?
It will only be off a few thousands, but we're measuring in the hundredths, so it is fairly significant.

If you take a reading at 80*F and get 1.050.... the adjusted value is 1.052.

It's only 2 thousandths... but out of 50 thousandths. That a 4% error, which is worth adjusting for. That error will propagate and make it harder to find system issues later if you're trying to nail down volumes or BeerSmith inputs, for example.

 Thread Tools

 Similar Threads Thread Thread Starter Forum Replies Last Post Mpavlik22 Brew Science 21 10-08-2013 12:10 PM deanocamino Brew Science 12 09-15-2011 09:04 PM Deskjockey894 Extract Brewing 15 11-23-2010 06:46 PM shanecb Fermentation & Yeast 4 08-08-2010 04:26 AM TheWeeb Beginners Beer Brewing Forum 1 06-28-2010 10:36 PM

 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Sponsor Showcase     Sponsor Showcase Home Brewing Beer     Beginners Beer Brewing Forum     General Beer Discussion     Fermentation & Yeast     All Grain & Partial Mash Brewing     BIAB Brewing     Extract Brewing     Gluten Free Brewing     General Techniques     Recipes/Ingredients     Equipment/Sanitation     Electric Brewing     Automated Brewing Forum     DIY Projects         Kegerators & Keezers         Brew Stands         Cleaners & Cleaning         Chillers & Stir Plates         Kettles, Mash Tuns & Hot Liquor Tanks         Fermenters     Bottling/Kegging     Label Display & Discussion     Brew Science     Lambic & Wild Brewing     Hops Growing     Home Brewing Photo Forum     Brewing Software Wine, Mead, Cider, Sake & Soda     Winemaking Forum     Mead Forum     Cider Forum     Soda Making     Kombucha & Fermented Tea Forum HomeBrewTalk.com Recipe Database     Homebrew Lager Recipes     Homebrew Ale Recipes     Homebrew Sours & Wilds Recipes     Specialty, Fruit, Historical, Other Homebrew Recipes     Mead Recipes     Wine Recipes     Cider Recipes Home Brew Market     Sampling and Critiquing and Beer Swapping     For Sale     Want to Buy     Group Buys     Homebrew Crowdfunding Food and Beverage     Cheese Making Forum     Cooking & Pairing     Coffee Brewing & Roasting     Meat Smoking, Curing and Sausage Making Home Brewing Community     General Chit Chat     Drunken Ramblings and Mindless Mumbling     Commercial Brew Discussion     Beer Blogs & Articles     Company Reviews Brewing Events & Local Gatherings     North West Homebrew Forum     South West Homebrew Forum     Great Lakes Homebrew Forum     South East Homebrew Forum     North East Homebrew Forum     North Central Homebrew Forum     South Central Homebrew Forum     International