Limes are difficult to squeeze. Even when you firmly roll them on the counter under your hand to loosen the membranes they, unlike the lemon, do not respond as well.
If you have a microwave this is what to do:
First wash the lime.
Next, on the side of the lime make about a 3/4 inch deep slit with the tip of a sharp knife – about 1/2 inch wide.
Now cross that slit with a matching one, so it looks like a cross.
Place in cup – slit side up – then in microwave for thirty seconds to one minute, depending on the wattage of your unit. You don’t want it to blow up, though if it does, then next time just scale back on the time.
Remove from microwave, let set till cool, then squeeze over bowl to release all juice.
Lemons respond well too. It’s especially helpful in keeping seeds inside the lemon and only allowing the juice to come out.
For that reason don’t make the slits too large. A small opening is sufficient.