It had long been suspected that the egg came first but now we have the scientific proof that shows that in fact the chicken came first, said Dr. Colin Freeman, from Sheffield University's Department of Engineering Materials, according to the Mail.
Best Answer: The sap should be stored at a temperature of 38 degrees F or colder, used within 7 days of collection and boiled prior to use to eliminate any possible bacteria growth.
This cycle of above-freezing days and below-freezing nights needs to continue for several days, although nature occasionally has been known to provide a good run under less perfect conditions. Sometimes sap flows as early as January or as late as May, but in Minnesota, sap usually runs from about March 15 to April 20.