How much Sodium Benzoate should I add to preserve 200ml of Orange juice?
2 Answers
From NCBI (National Center for Biotechnology Information):
Sodium benzoate (0.4 g) was added to 400 mL orange juice.
So 200 ml of orange juice, being half the amount of 400 ml, may need 0.2 g of sodium benzoate, which is half of 0.4 g.
According to this, the FDA (food&drug administration) allow up to 0.1% per weight.
"Concentration as a food preservative is limited by the FDA in the U.S. to 0.1% by weight"
So, m maximum of 0.1% per weight of the weight of your 200ml of orange juice.
Let's say 200ml of juice is at least 200g (more or less equivalent to water), you'd need to add at most 0.2g of Sodium Benzoate.
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5The information you found is a safety limit. It does not in any way say how much it should be actually used, and whether it is even a suitable preservative for orange juice specifically.– rumtscho ♦Jan 28, 2021 at 16:59
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3To be fair to Max, the original text of the question was "how much CAN I add" so he answered the text of the question, even if not the intent. Jan 29, 2021 at 7:08