Wash and scrub the lemons with cold water and mild soap.
Trim the ends and slice the lemons crosswise.
Open each lemon and pack 1-2 tablespoons of the salt in between the cuts.
Place them into the jar and push them firmly so that they release their juice.
Pack them, together with some additional salt around them.
Squeeze the fresh lemon juice from 1-2 lemons and pour the liquid into the jar. Make sure that all the lemons are submerged in.
Tightly close the jar and leave at room temperature for at least 2-3 weeks