GIFSQ Tools · Module 11 — Ingredients, Additives & Formulation · Tool 203 of 500
Work out how much of a substitute ingredient replaces the original, how the amount changes, and what the swap does to the batch cost.
Try sample values — fills the form with the worked example below.
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Substitute needed (g)
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Amount change (%)
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Cost change ($)
Equation: Substitute weight = original weight ÷ relative strength. Amount change (%) = (substitute − original) ÷ original × 100. Cost change = substitute cost − original cost, each cost = weight (kg) × price ($/kg).
Method: Substitution by functional strength: a substitute that is 0.8 times as strong as the original needs 1 ÷ 0.8 = 1.25 times the weight for the same effect. Relative strength comes from the supplier data sheet or a trial — it is not a property this tool measures.
Assumptions: the substitute matches the original on the one function being replaced; flavour, colour, water binding and labelling can all change and must be checked separately.
Limitations: a single strength ratio cannot capture a substitute that behaves differently across temperature, pH or storage; always confirm with a trial batch.
Rounding: weights to 2 decimal places; percentages to 2 decimal places; costs to 2 decimal places; intermediates unrounded.
This is a calculation aid, not a laboratory report — confirm against your accredited method before citing a value.
Method: Substitution by functional strength: a substitute that is 0.8 times as strong as the original needs 1 ÷ 0.8 = 1.25 times the weight for the same effect. Relative strength comes from the supplier data sheet or a trial — it is not a property this tool measures.
Assumptions: the substitute matches the original on the one function being replaced; flavour, colour, water binding and labelling can all change and must be checked separately.
Limitations: a single strength ratio cannot capture a substitute that behaves differently across temperature, pH or storage; always confirm with a trial batch.
Rounding: weights to 2 decimal places; percentages to 2 decimal places; costs to 2 decimal places; intermediates unrounded.
This is a calculation aid, not a laboratory report — confirm against your accredited method before citing a value.
Worked example: 100 g of an ingredient replaced by one 0.8 times as strong: 100 ÷ 0.8 = 125.00 g of substitute (+25.00%); at $10/kg and $12/kg the cost moves from $1.00 to $1.50, a change of +$0.50.
Enter values above to see results.
Relative strength of 1.0 means a one-for-one swap; above 1.0 the substitute is stronger and less is needed. Tool 203 of 500 — GIFSQ
