# Configure Charset used by Elasticsearch to minimize storage and boost searches
**URL:** https://discuss.elastic.co/t/configure-charset-used-by-elasticsearch-to-minimize-storage-and-boost-searches/284679
**Category:** Elasticsearch
**Created:** [September 21, 2021, 6:18am UTC](https://discuss.elastic.co/t/configure-charset-used-by-elasticsearch-to-minimize-storage-and-boost-searches/284679 "2021-09-21T06:18:46Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@FloFire](https://discuss.elastic.co/u/FloFire)
#### Post date: [September 21, 2021, 6:18am UTC](https://discuss.elastic.co/t/configure-charset-used-by-elasticsearch-to-minimize-storage-and-boost-searches/284679/1 "2021-09-21T06:18:46Z")
Hi all,
I'am currently try to use elastic to store a huge amount of text. I do not need UTF things I'am would be fine with ASCII. Also I would be fine if all chars are lower case because I dont care about uppercase and lowercase.
Since the amount of data are some TB these little things really matter 🙂
Is there a why to configure which charset elasticsearch is using internaly? To save storage and to boost searches?
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### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [September 21, 2021, 7:03am UTC](https://discuss.elastic.co/t/configure-charset-used-by-elasticsearch-to-minimize-storage-and-boost-searches/284679/2 "2021-09-21T07:03:34Z")
Welcome!
Elasticsearch uses UTF8 only. I'm not sure that running with ASCII would change anything in term of storage or performance as the underlying data structures will be the same I believe.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 19, 2021, 7:04am UTC](https://discuss.elastic.co/t/configure-charset-used-by-elasticsearch-to-minimize-storage-and-boost-searches/284679/3 "2021-10-19T07:04:16Z")
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