No krausen!!!

Hi, I brewed a german ale 1.052 with wyeast but I added the yeast and the wort was still warm. two days later I didnt se too much activity so I added a pouch of wyeast american ale. Today still no krausen, not high active fermentation but smells good. Havent got gravity reading yet, what happened? is it spoiled?

 

What temp is you're beer at?

 

Fermentation can take up to 72 hours to begin. Everything mostly depends on your process including the following:
Pitching temperature
Quality of aerating the wort
Pitching a proper sized starter with liquid yeast

Did you make a starter? If not you most likely under pitched the beer increasing lag time
Did you aerate the wort? If the wort was inadequately aerated lag time will increase as well
Did you pitch at the right temperature? If your wort was hot and your yeast was cold or vice versa the yeast will shock a bit and take time to adjust to their new environment.

Give it some time and it will get started for you

 

is at 21 Celsius, tomorow is one week old!!!

 

Then you need to take gravity reading and verify it is unchanged from the OG. If not changed then you should re-pitch.

Then go back and review your process and see what you can do to correct it.

 

How warm was too warm?
How much is not too much activity?
No krausen at all?
Not high activity? How little is that?

No starter? What gravity beer is the recipe for? If a big beer it might take a few days for a vial/pouch for yeast to get going.

Take a gravity reading. That is the only way you are going to know what is really happening.

For liquid yeast you should be making starters. Check mrmalty.com and yeastcalc.com for information and starter sizes.