<t>To remove a single item:<br/>
<br/>
_cache.KeyDelete(key);<br/>
<br/>
```<br/>
<br/>
To remove *all* involves the `FLUSHDB` or `FLUSHALL` redis command; both are available in StackExchange.Redis; but, [for reasons discussed here](https://stackexchange.github.io/StackExchange.Redis/KeysScan.html), they are not on the `IDatabase` API (because: they affect servers, not logical databases).<br/>
<br/>
As per the "So how do I use them?" on that page:<br/>
<br/>
```<br/>
server.FlushDatabase(); // to wipe a single database, 0 by default<br/>
server.FlushAllDatabases(); // to wipe all databases<br/>
<br/>
```<br/>
<br/>
(quite possibly after using `GetEndpoints()` on the multiplexer)</t>