Again, practices vary greatly. In the majority of parishes the Pastor consumes the remaining wine, sometimes with the eucharistic ministers assisting in the consumption. In a relatively small minority of parishes the ablutions are made in the Catholic/Anglican manner of then adding water to the chalice(s), swirling, and consuming.
That small minority of parishes are also likely to have a reservation Tabernacle.
Freeper bcsco commented that in his church We offer both the chalice and plastic cups.
Plastic cups? For what is supposedly the Blood of Christ? Do the Lutheran churches maintain a sacrarium in the sacristy?