Alternative dialogue words you could use instead of the word…

Plain

As an adjective

Specifically meaning from additions and additives…

Or pure.

Absolute

Clarified

Concentrated

Filtered

Fine

Fresh

Full bodied

Neat

Pure

Purified

Refined

Rendered

Straight

Strong

Taintless

Tried

unadulterated

Unalloyed

Uncombined

Uncontaminated

Uncorrupt

Undefiled

Undiluted

Unpolluted

Untainted