Olive oil tasting glasses

Blue-tinted glass cups for olive oil tasting, designed to enhance color, aroma and flavor evaluation, are essential tools in professional sensory analysis.

About this subject

Olive oil tasting glasses, often called “cazuelas” or simply blue tasting cups, are essential tools in sensory analysis of olive oil. Their characteristic blue or amber color is not decorative: it masks the oil's hue, preventing visual bias since evaluation relies solely on olfactory and gustatory attributes. The typical shape is a rounded bowl with a tapered rim that concentrates aromas and allows hand-warming to release volatile compounds.

In professional and competitive settings, such as those organized by the International Olive Council (IOC), these glasses must follow strict specifications. The IOC standard COI/T.20/Doc. No 1 dictates that glasses should be made of clear or blue-tinted glass, with a capacity of 30 to 50 ml, and heated to around 28°C before tasting. The rim is often polished to avoid chipping and to provide a smooth surface when swirling.

The tasting protocol involves three steps: olfactory (aroma), gustatory (flavor), and final persistence. In Spain, Italy, and other Mediterranean countries, these glasses are a staple in olive oil mills and tasting labs. In Brazil, they are used in competitions like the Brazil Olive Oil Award and in sommelier courses certified by ABRASA.

A lesser-known fact: the design was inspired by wine glasses but adapted for thicker oils. Some models include a lid to seal aromas between samples. While simple in appearance, the quality of the glass directly impacts the accuracy of sensory analysis, making it a critical instrument for grading extra virgin olive oils.

Frequently Asked Questions

Why are olive oil tasting glasses blue?

The blue color masks the oil's hue, preventing visual bias. Sensory evaluation should focus solely on aroma and taste, not color.

What is the ideal capacity for an olive oil tasting glass?

According to the International Olive Council, the capacity should be between 30 and 50 ml. This provides enough volume to warm and evaluate without waste.

Do you need to heat the olive oil before tasting?

Yes, the glass is warmed by hand or in a water bath to about 28°C. Heat releases volatile compounds, making aromas easier to perceive.