Police will remain on scene over the weekend at a property where chemicals were discovered.
The substances, along with other items found at The Wolds in Waddingham, Lincolnshire, were disposed of in a controlled explosion near Faldingworth on Thursday night.
An 18-year-old man has been arrested on suspicion of manufacturing a weapon, device or ammunition, and making an explosive substance. He has been released on bail.
Lincolnshire Police said they were still investigating why the chemicals and materials were there but added the incident was not terrorism-related.
