Most Lutherans I know (granted, I know more ELCA and LCMC than I know LCMS or WELS) don’t believe that the communion elements remain Body and Blood after the end of the service… so that’s one difference.
:bigyikes: That’s disturbingly un-Lutheran! They are subscribing to the error of Receptionism. Sometimes this happens when people misunderstand why Lutherans typically don’t reserve the Sacrament (though some do).
Lutherans who do not practice reservation of the Sacrament do not refrain from doing so because of any particular doctrine against it, but because they take very seriously Christ’s command to “Take, eat. Take, drink.” Christ doesn’t say anything about “Take, eat some now, and save some for later,” so in typical Lutheran fashion, they don’t put a comma where they understand God to have put a period. Instead, they simply avoid having any leftover altogether. Churches I’ve worshiped at have a simple practice - the elders count how many members are present so no more bread or wine than necessary is consecrated. At churches where I’ve worshiped that do not reserve the Sacrament, any remaining Blood in the chalice is either consumed by the pastor or properly disposed, and anything remaining of His Body is either stored separately from the unconsecrated hosts or properly disposed.
From
The Altar Guild Manual: Lutheran Service Book Edition (wording unchanged, emphasis mine):
If any of the Lord’s body and blood remains, they can be disposed of in a number of ways. The best way is to consume the remaining elements, since the Lord said, “Take and eat … Take and drink,” and did not provide for anything that was left over. There is historic precedent for reserving the remaining elements against the next communion. The hosts can be stored in a pyx or ciborium (apart from unconsecrated hosts), the blood of the Lord in a suitable cruet or flagon (apart from unconsecrated wine). What remains in the chalice, however, should either be consumed or poured into the piscine or onto the ground, since there may be crumbs or other foreign matter in it. The reserved elements may then be kept in the sacristy or placed on the altar or credence and covered with a white veil. It is un-Lutheran and irreverent to place unused elements in the trash or to pour the remainder of what is in the chalice or flagon into the common drain.
And from
Theology and Practice of the Lord’s Supper, as prepared by the LCMS Commission on Theology and Church Relations:
B.2.c. Post Communion Reverence
The consecrated elements which remain after all have communed should be treated with reverence. This reverence has been expressed by Lutherans in various ways. Some have followed the ancient practice of burning the bread and pouring the wine upon the earth. Others have established a basin and drain-piscina-specifically for disposal for the wine. The elders or altar guild may also return the consecrated bread and wine to specific containers a pyx or ciborium, separate from unconsecrated elements] for future sacramental use, or the elders and pastor can consume the remaining elements. All of these practices should be understood properly.
Lutheran reverence isn’t limited to how we handle the Remnants. We generally kneel at the altar rail when receiving, bow our heads at approach, and make the sign of the cross after reception. Congregations that have kneelers use them, and all sing hymns in adoration of the Lord’s Presence. If a member is in the hospital or otherwise unable to make it to the Divine Service, the pastor typically visits and consecrates the elements on-site, both so as not to subject His Body and Blood to being rather unceremoniously carted around all day as they visit shut-ins (and potentially spilled or dropped!

), and so that the consecration takes place in the presence of the communicant. This is thought to be more in line with Christ’s command, not to mention more pastoral (who doesn’t like a one-on-one visit from their pastor?

).
And if this isn’t clear enough, there is the historic precedent of an elderly Luther lapping up the spilled Blood like a dog as the congregation was moved to tears, and another example where, in keeping with the ancient tradition, he cut out and burned a piece of the altar when purificators could not remove a stain.