Blind codes

What they are

A blind code is an opaque (three-digit) identifier the system assigns to a sample so the panelist can't recognize it by name or by batch.

Every sample gets its blind code when you launch the tasting. The wizard's Blind mode checkbox (the Product and samples step, on by default) decides what the panelist sees: with it on, only the code; with it off, the sample's internal name as well.

Why they matter

• They remove bias. A panelist who sees "Batch A — supplier X" knows what they're tasting and can skew their evaluation.
• They allow replication. The same sample can appear twice under different codes to verify panel consistency.
• They're a requirement for many protocols (triangle test, duo-trio, descriptive with several samples) to be valid.

How they're generated

AreaCacao assigns the codes on the server, at random between 100 and 999, never repeating one within the same tasting, and with an exclusion list to avoid:

• Codes made of three identical digits (111, 222… 999).
• Sequences of three consecutive digits, ascending or descending (123, 789, 321…).
• Memorable codes or codes with connotations (100, 500, 666, 911).

When they're assigned

• When you create the tasting, on the wizard's last step (Confirmation and launch), you see a preview of codes; it is only indicative.
• When you launch the tasting, the server assigns the final codes, which no longer change and are the ones printed on the A4 sheets and the Avery L7160 labels.

How to work with them in the workshop

1. Print the Avery L7160 labels with the blind codes.
2. Stick each label on the corresponding cup or plate.
3. Serve following the configured presentation order.
4. Record the panelists' evaluations (on paper + OCR afterward, or digitally).

Related terms

• Presentation order
• Avery L7160 labels