Question about making a yeast starter for 1.070 OG Plinian Legacy

[jeremybwilson]

John Palmer's book states:

Boil a pint (470 mL) of water and stir in 1/2 cup of dry malt extract. This will produce a starter of about 1.040 OG.

With that in mind, is there a calculator or something out there to help me figure out how much DME I should increase to achieve a starter wort of 1.070? Or do I instead just stick with the 1.040 OG for this starter?

 

[duboman]

You don't want the starter wort to be 1.070, you want it to be 1.040, regardless of the gravity of the batch you are planning to brew. You need to build up the cell count for proper pitch rate into a 1.070 beer.

You can use http://www.mrmalty.com or http://www.yeastcalc.co/pitch-rate-and-starter-calculator#.UzwRD_k7um4

to properly calculate the size of starter required. Keep in mind it is much more accurate to weigh out the DME instead of measuring by volume. It is generally a 10:1 ratio, in otherwords, 100 grams DME to 1L of water to produce a 1.040 starter wort.

 

[jeremybwilson]

Great. Thank you very much. That is what I needed to know.

 

[Komocabo]

I think the pint of water to 1/2 cup of DME seems WAY more than 1.040 gravity,

I do 2L starter with 200g of DME. That is usually just over 1 cup. So, your original suggestion would be much more concentrated - about twice as it should be... Unless my math is off...

 

[HaDaL]

Regardless of what the OG of beer is(even for very big beer),SG number of starter must be somewhere between 1.030 to 1.040.
Use this equation to figure out the weight of needed DME:

Weight of DME=(SG-1)×V×2.7​

For example You want 2 litres starter whit 1.036 sg so
Weight of DME=(1.036-1)×2×2.7=0.194 kg or 194 g
Or use one of these calculators:
http://www.brewersfriend.com/yeast-pitch-rate-and-starter-calculator/
http://www.mrmalty.com/yeast-tools.php