Four Roses combines two mash bills with five yeast strains to make ten recipes, and the author compares new makes while holding either mash bill or yeast constant; she also notes that suggestion can influence perceived differences.
Locator type: Section
Reader locator: “The Master Distiller,” Four Roses laboratory comparison of mash bills and yeast strains
Pagination: The supplied reflowed edition has no verified printed-page mapping; use the named passage above.
Source section: The Master Distiller — Four Roses comparison
A guided comparison uses the distillery's recipe matrix as a practical demonstration of controlled formulation differences.
Supports multistage flavor and mash-bill boundaries while explicitly preserving sensory-suggestion risk.
Status: Verified
Verified against the rendered local PDF on 2026-08-27. The record is a concise paraphrase; time-sensitive, attributed, disputed, or technically simplified material retains an explicit qualification.