Wintertime is Citrus Time. It's also Science Time. It all started with the citrus: ruby grapefruit, blood orange, meyer lemon.
We juiced the fruits with the back of a spoon, and measured in a liquid measure, which is just accurate enough for our purposes.
We recorded the weight of each fruit whole, the fluid ounces and weight of juice gained.
(Grapefruit wins the weight of fruit/weight of juice ratio; blood orange wins in color; meyer lemon in ease of spoon juicing and delicate florals.) We also recorded the weight of waste.
In this case, 'waste' is the lovely rinds with healthy bits of pulp and color and flavor.
Oh no, these are not meant for the compost bin, that we promise you.