rennet strenth

[Tar]

hi cheesemakers!
with us "normal" rennet is 1 : 10000 but you can find 1 : 5000 or 1 : 20000......
mining that one unit of rennet makes 10000(5000 or 20000) units  of milk in clean brake courd in 40 minutes.
Some recepis use " double strenth"?  :-\
What is "normal" in states?
Please don't tell me that is 1/2 of double strenth.....

[linuxboy]

Single is 1:15,000. Double is 1:30,000. Both are "normal". Double is used often because it's cheaper.

[Tar]

so single is regular? 
ok!
thank you!

[linuxboy]

Usually it's labeled. If it's not, try to check with the manufacturer. Tough to assume the concentration because there are many companies that make rennet.

[BigCheese]

When I say this thread I got all excited because I just read this information in American Farmstead Cheese. But, nope, Linuxboy was already on the scene.