### Author Topic: DS Rennet - MATH HELP  (Read 276 times)

#### stratocasterdave

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##### DS Rennet - MATH HELP
« on: January 11, 2013, 02:21:34 PM »
My mind can not handle such analytical things anymore I guess. Went back to my algebra to try figure out what should be a simple linear equation and I got lost.

I obtained 1 fluid ounce of double strength rennet from a dairy out here in WI.  I looked at the label an is says: add 1 OUNCE to 1,000 POUNDS of milk.

I know know a gallon of milk weighs 8.6 lbs.  Need help with fining out how much of a TSP per gallon should be used.

Dave

P.S. The only reason I am doing this is because I'm not too sure if Double Strength means use HALF to achieve the same results as single.  Lastly, I don't know if thestuff is calf or vegetable DS rennet.

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#### margaretsmall

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##### Re: DS Rennet - MATH HELP
« Reply #1 on: January 11, 2013, 02:44:13 PM »
By my crossbred calculation, that would be 0.2ml per gallon. My DS calf rennet, according to the label, recommends a max. of 1.25ml per 10l milk, that is 0.5ml for 4l (=approx 1 gallon). Why not a small make, say 4l(1 gallon) and see what happens - if its really slow to coagulate then you know you need more.
Margaret

#### Tiarella

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##### Re: DS Rennet - MATH HELP
« Reply #2 on: January 11, 2013, 04:18:00 PM »
Yes, double strength means use half as much.  Rennet recommendations are just that: recommendations.  Different milks, etc will all change things slightly but halving the rennet amount in the recipe should do the trick.

#### Boofer

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##### Re: DS Rennet - MATH HELP
« Reply #3 on: January 12, 2013, 01:14:45 PM »
My mind can not handle such analytical things anymore I guess. Went back to my algebra to try figure out what should be a simple linear equation and I got lost.

I obtained 1 fluid ounce of double strength rennet from a dairy out here in WI.  I looked at the label an is says: add 1 OUNCE to 1,000 POUNDS of milk.

I know know a gallon of milk weighs 8.6 lbs.  Need help with fining out how much of a TSP per gallon should be used.

Dave

P.S. The only reason I am doing this is because I'm not too sure if Double Strength means use HALF to achieve the same results as single.  Lastly, I don't know if thestuff is calf or vegetable DS rennet.
I was never good at math. English was my forte.

Running through my Excel I came up with this:
• 1000 lbs/8.6 lbs = 116.27 =~ 116 gallons
• 116 gallons/4-gallon batches =~ 29 4-gallon batches
• 1 oz = 29.6 ml = 6 tsp
• 29 ml for 29 4-gallon batches
• ~1 ml for each 4-gallon batch
• double strength rennet => ~1/2 ml for each 4-gallon batch
I'm sorry if that doesn't make any sense. I don't use liquid rennet, but instead rely on dry calf rennet.

-Boofer-
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Bread, beer, wine, cheese...it's all good.

#### bbracken677

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##### Re: DS Rennet - MATH HELP
« Reply #4 on: January 12, 2013, 06:41:13 PM »
Start off using about 1/4 tsp for 4 gallons. In order to improve accuracy I counted the number of drops in 1/4 teaspoon (approx 20 using my bottle dispenser) and adjusted the amount I was using based on the flocculation time I was getting.
I have single strength veal rennet and use 1/4 tsp for 2 gallons (adjusted to 22 drops).

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#### Schnecken Slayer

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##### Re: DS Rennet - MATH HELP
« Reply #5 on: January 12, 2013, 11:01:53 PM »
Quote
I was never good at math. English was my forte.

Running through my Excel I came up with this:
• 1000 lbs/8.6 lbs = 116.27 =~ 116 gallons
• 116 gallons/4-gallon batches =~ 29 4-gallon batches
• 1 oz = 29.6 ml = 6 tsp
• 29 ml for 29 4-gallon batches
• ~1 ml for each 4-gallon batch
• double strength rennet => ~1/2 ml for each 4-gallon batch
I'm sorry if that doesn't make any sense. I don't use liquid rennet, but instead rely on dry calf rennet.

-Boofer-

That makes sense 1/4 tsp = 1.25 ml
-Bill
One day I will add something here...

#### stratocasterdave

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##### Re: DS Rennet - MATH HELP
« Reply #6 on: January 14, 2013, 11:38:33 AM »
Thanks for all the help and info.  I'll try 1/8 tsp for 2 gallon makes.

Dave