Change

I had always cut my lemons crosswise when I juice them.  And then I found this.  So when I needed some lemon juice (B wanted some baked chicken and I happened to have lemons), I decided to make it a try.

The scientist in me thought that the video did not take into account that the lemons being compared should have been similar size, weight.  But based on my own experience, if I need 1/2 cup of lemon juice, I usually need 4 lemons (microwaving for a few seconds hardly made any difference).  So after zesting 4 lemons, I juiced them.

And I have my 1/2 cup with just three lemons.

Before I get convinced, this has to be reproducible.  But I don't need any more lemon juice today.  So I'll just have to repeat the experiment.