The court may, with the consent of the prosecuting attorney and the defendant, direct the jurors that if they should agree upon a verdict during a temporary adjournment of the court, the foreperson and each juror shall sign the same, and the verdict shall be sealed in an envelope and delivered to the officer having charge of the jury, after which the jury may separate until the court recovenes. When the court authorizes the rendition of a sealed verdict, it shall admonish the jurors not to make any disclosure, of any kind, concerning it or to speak with other persons concerning the case, until their verdict shall have been rendered in open court. The officer shall deliver the sealed verdict to the clerk. When the jurors have reassembled in open court, the envelope shall be opened by the court or clerk, and must be received in the same manner as unsealed verdicts.