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sci.food-water-activity-BET Calculator
Calculates the BET monolayer moisture content from water activity data using the BET equation: m/m₀ = caw/((1−aw)(1+(c−1)aw)). BET isotherm is valid for aw = 0.05–0.45 — monolayer moisture m₀ represents optimum storage stability; below m₀, oxidative deterioration accelerates.
Inputs
A W
Reference formula or conversion factor shown for context.
W Mono
Reference formula or conversion factor shown for context.
C Bet
Capacity to do work (J or kWh). Conserved — converts between forms but total stays constant in a closed system.
Results
moisture content W (g/100g dry)
Sample size or count used in the calculation.
W_BET = Wm·C·aw / ((1-aw)(1+(C-1)aw))
Reference formula or conversion factor shown for context.
storage stability
Measure of how robust the system, structure, or process is to perturbations. Low stability means small changes can cause large deviations.
safe shelf stable a_w
Reference formula or conversion factor shown for context.
Wm interpretation
Qualitative summary of what the computed numbers mean in practical terms.