by vagreys » Thu Aug 11, 2011 7:36 am
I can't tell you about the dextrose and milk powder, but I can give you the formula for how to calculate the amount of cure mix you need.
You will need to know:
- how much the meat and fat weigh
- the percentage sodium nitrite content of your cure mix
- the target concentration of sodium nitrite you want to achieve in parts per million (ppm)
Let:
M = meat weight
C = cure mix
N = % nitrite or nitrate in the cure mix
P = ppm sodium nitrite concentration target/limit
If you want to know how much cure to add:
C = (M * P) / (N * 1,000,000)
If you want to know how many ppm of nitrite/nitrate is in the meat:
P = (C * N * 1,000,000) / M
Example: You are making dry-cured sausage using 5000g of meat. You are using US Cure #2. US Cure #2 contains 6.25% sodium nitrite and 4% sodium nitrate. US limits for nitrite/nitrate in sausages are 156 ppm nitrite, and 1718 ppm nitrate. You want to know how many grams of Cure #2 to use to achieve 156 ppm of sodium nitrite. You also want to know how many ppm of sodium nitrate it will contain.
C = (M * P) / (N * 1,000,000)
C = (5000g * 156) / .0625 * 1,000,000)
C = 780,000 / 62,500
C = 12.48g
So, your sausage mix needs 12.48 grams of US Cure #2. Now, how many ppm of sodium nitrate will the sausage contain, if the Cure #2 has 4%?
P = (C * N * 1,000,000) / M
P = (12.48 * .04 * 1,000,000) / 5000
P = 499200 / 5000
P = 99.84 ppm
So, your sausage will contain 99.84 ppm of sodium nitrate.
Notes:
Units of weight for M and C should be the same (so if you use ounces, then express weights in ounces for both, same with lbs, grams, or kilograms). I use grams.
Percentage nitrite in the cure mix should be expressed as a decimal value (6.25% = 0.0625). If you are working with pure nitrate or nitrite then the percentage is 100% or a value of 1.
US Cure #1 contains: 93.75% sodium chloride, 6.25% sodium nitrite
US Cure #2 contains: 89.75% sodium chloride, 6.25% sodium nitrite, 4.00% sodium nitrate
UK Cure #1 contains: 94.118% sodium chloride, 5.882% sodium nitrite
UK Cure #2 contains: 90.703% sodium chloride, 5.669% sodium nitrite, 3.628% sodium nitrate
European Cure #1 contains: 99.4% sodium chloride, 0.6% sodium nitrite
PPM Limits vary by country and by cured meat product. I don't know where you are.
Hope this helps.
Last edited by
vagreys on Fri Aug 12, 2011 12:09 pm, edited 2 times in total.
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