block.removeMetadata(furnaceOwnerMetadata, plugin);
block.setMetadata(furnaceOwnerMetadata, new FixedMetadataValue(plugin, event.getPlayer().getName()));
} else if (block.getType().equals(Material.BREWING_STAND)) {
if (block.hasMetadata(brewingOwnerMetadata))
block.removeMetadata(brewingOwnerMetadata, plugin);
block.setMetadata(brewingOwnerMetadata, new FixedMetadataValue(plugin, event.getPlayer().getName()));
}
}
}