Thaw Time combines published human-milk data with established heat-transfer and thawing-model concepts. Some values come directly from reported human-milk measurements or property values in the literature, while others are engineering approximations based on those sources. This page lists both, so you can see exactly what stands behind each number. The thermodynamic model is separate from the public-health handling guidance, which follows current CDC recommendations.
These peer-reviewed studies provide the thermophysical constants the model uses for breast milk itself — its density, specific heat, thermal conductivity, freezing point, and water content.
Supports: A human-milk warming and simulation study, not a freezing/thawing study. Supports breast milk density (~1.03 g/mL), liquid specific heat (~3.93 J/g·°C), thermal conductivity (~0.5369 W/m·K), and the importance of internal temperature gradients / thermal behavior during warming. Thaw Time's 1-D spatially resolved model is motivated by these gradients; it does not reproduce the study's full fluid-flow simulation.
Supports: Reported physicochemical properties of human milk, consistent with a representative human-milk freezing/melting point around −0.54 °C. Thaw Time uses −0.54 °C as its effective freezing point.
Supports: Breast milk is approximately 87–88% water by mass, with general density/specific-gravity context. Thaw Time's effective latent heat of ~291 J/g is NOT directly measured in this paper — it is an engineering approximation based on roughly 0.87 × 334 J/g applied to the water fraction only.
A general reference on the heat-transfer physics of thawing food and biological materials. It informs the modeling approach but is not breast-milk-specific and is not a validation of Thaw Time's estimates against measured thaw times.
Supports: A general thawing-model reference, not a breast-milk-specific validation study. Supports general modeling concepts such as geometry, boundary heat transfer, phase change, temperature-dependent properties, and numerical thaw-time prediction methods reflected in Thaw Time's engine.
The storage, thawing, warming, and handling rules Thaw Time cites are public-health guidance from the CDC. This is independent of the thermodynamic model: the physics estimates how long a process takes, while the CDC guidance describes how milk should be handled.
Thaw Time flags warming water above 120 °F as a danger threshold. This is an app warning threshold based on established tap-water scald-prevention guidance from the U.S. Consumer Product Safety Commission (CPSC) — it is not a CDC breast-milk warming cutoff, and the CPSC material is not a study of breast-milk warming.
Where no single measured value fit, Thaw Time uses deliberate, documented modeling choices rather than direct measurements: