{% cache %}

The {% cache %} tag is used to cache content used on a page or partial. The cache key included with the tag can be any string except for the following reserved characters {}()/\@:;.

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    Cached forever
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You may set the cache to expire after a specific amount of time, specify the expiration time in minutes using the ttl modifier.

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    Cached for 5 minutes
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It is good practice is to embed some useful information in the key that allows the cache to automatically expire when it must be refreshed:

• Give each cache a unique name and namespace it like your templates.
• Embed an integer that you increment whenever the template code changes (to automatically invalidate all current caches).
• Embed a unique key that is updated whenever the variables used in the template code changes.

This allows you to use a cheap cache key lookup (e.g. updated timestamp on a model) to cache more expensive contents inside.

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    <!-- Expensive Blog Post Contents Here -->
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It is important to remember that the cache tag creates a new scope for variables. This means the changes are local to the template fragment.

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    ___TWIG3___
    Some code
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