Heald Lab  Margaritas
Slice limes in half and squeeze out the juice. 
Measure 1 liter in graduated cylinder. 
Discard rinds. 
Combine in 4 liter receptacle: 1 part lime juice, 1 part triple sec, 1.5 parts tequila. 
Mix well with sterile pipette.
Salt glass rims by turning upside down and placing on a plate of lime juice, then on a plate of salt.
Fill glasses with ice Pour margarita into glasses. 
Drink and enjoy.
