heat pack

[kaganesti]

Hi guys and gals,

What exactly is the use of the heat pack? To keep the temperature more resistant to external changes? Or prevent the eggs from freezing up when shipped to colder countries?
Do i need the heat pack if I am getting eggs from places like USA now?

Thanks in advance for any information and advises

[stormhawk]

Hi Dennis,

The heat pack just ensures that there is a stable temperature in the container while the eggs are being shipped. In most cases, you will require a heat pack if you're getting eggs from places that are currently having colder weather.

[whuntley]

"Stable" as used here is not accurate.

Heat packs are little furnaces that use powdered iron and slow oxidation to warm a package. There is nothing "stable" about it, and there is no real regulation or temperature control involved.

The inside temperature of the package depends on how good and where the insulation is. IMHO, the fish need more protection from the heat of the pack than from outside influences, in most cases.

Different heat packs generate heat for different lengths of time, by design. We cannot predict how much cold a package will suffer, or for how long, so they are a very bad idea when shipping to a tropical climate. It would be far better to pay for the extra weight of another layer of insulation, and/or a refrigerator gel pack at room temperature, to provide some stability by adding thermal mass.

Wright

[stormhawk]

Thank you Wright, for the clarification.

Dennis, there's enough info in Wright's post to answer your queries regarding the use of heat packs.