If you want to get the most juice out of your limes, microwaving them for a few seconds can be an effective way to do so. The amount of time necessary depends on the size of the lime and how powerful your microwave is. A good guideline is to microwave limes in 15-second intervals until they start feeling warm when touched or appear slightly softer. If you’re using smaller limes, 10 seconds should suffice; if you’re using larger ones, up to 20-25 seconds may be needed. Once done microwaving, let the limes cool down before slicing and juicing them. Doing this will allow their natural juices to flow more freely due to changes in pressure caused by heating - resulting in more flavorful and juicy lime juice!