Hi... How many packs of 34/70 for 12 gallons of 1.050 wort?

Ingredients
1

Hello,
Just like the title says…
I see a lot of people use 2 packs for 5 gallons so I assume 4 is is good for 12 gallons?

I dont mind over pitching a lager but I dont want to be throwing an extra $6 at the problem for no reason.

thanks haeffnkr

2

http://www.fermentis.com/wp-content/uploads/2016/12/SafLager-W-34703.pdf

A little math and you have the manufacturer’s answer to your question.

3

3 might be alright, 4 would be better, 5 or 6 would be overkill.  Rehydration is optional but not a bad idea.

4

thanks for responding and I have found this on their site,  but I dont know what this means -

PITCHING: 80 to 120 g/hl for fermentation at 12°C – 15°C (53.6-59°F).
increase pitching for fermentation lower than 12°C (53°F), up to 200 to 300 g/hl at 9°C (48°F)

thus my questions -
How do I get from gallons and gravity to metric something or another?

thanks haeffnkr

5

I have had great luck with 4 and re-hydrated thus far.

thanks

6

I just did the math and confirmed 4 packs.

100 g/hl = 1 g/l

There are 3.79 l/gallon and you have 12 gallons, so you need 45.4 g.

There are 11.5 g/packet of dry yeast.  So, you need

45.4/11.5 = 3.95 packets of yeast.

7

I used 2 packs unrehydrated for 5 gal. of 1.050 pils.  Beer turned out great.

8

thanks U ROCK !!

haeffnkr