Globel said:

I have been told that the reason we wintertize, Is that butane is nonpolar and it attracts the stuff we want from our material. The butane gets trapped in the process. You must use a polar solvent to brake it up and release it. Is this true? If any one is still wondering.. I use dry Ice to drop the temp.

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Butane is relatively non polar and extracts the non polar plant waxes along with the cannabinoids and other terpenes.

Winterizing is redissolving a non polar extraction into a polar solvent and then dropping the temperature so that the fats, lipids, and waxes precipitate out of solution, enabling them to be removed by filtration.

Graywolf said:

Butane is relatively non polar and extracts the non polar plant waxes along with the cannabinoids and other terpenes.

Winterizing is redissolving a non polar extraction into a polar solvent and then dropping the temperature so that the fats, lipids, and waxes precipitate out of solution, enabling them to be removed by filtration.

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So winterizing is different than dewaxing because one you use alcohol opposed to just keeping it chilled in dry ice at a certain temp when extracting and even afterwards when filtering through the buchner w an aspirator and let then let that container you just filtered it into chill for an hour? Then proceed to the heating the butane out and then vac purge?