Blind tasting on iPhone Duo: a two-page study method

Blind tasting on iPhone Duo works best when each page has one job. One page holds the evidence (your notes, the pair you are separating, the question in front of you). The other page holds the judgment (the ranking, the structural comparison, the reason behind an answer). We rebuilt Sensium so that an open Duo shows both at once, and so that folding the phone never costs you the place you were in.

This post is a study method first. The layouts matter only because they make a good habit easier: look at the evidence before you look at the answer.

Why a second page changes how you study

Most blind-tasting mistakes are ordering mistakes. A taster sees black fruit, names Cabernet Sauvignon, and then reads the structure to fit the name. The fix is old and simple: commit to structure first, then let the aromas confirm or break the call. Our deductive tasting grid is built on that order.

A single phone screen fights this habit. You scroll from your notes to a dossier and back, and each scroll is a chance to drop a detail. Two pages remove the scroll. The notes stay where you wrote them, and the reference sits beside them. That is the whole case for blind tasting on iPhone Duo: the method stays the same, and the device stops getting in its way.

On the outer display, Sensium is the phone app you already know. Open the Duo and the same tabs spread across both pages:

Nothing sits on the fold itself. Buttons, choices, and grids stay on one page or the other.

Compare: one pair, two pages

Confusion pairs are where most study time should go, and our ten grape confusion pairs list is the place to start. On a Duo, pick the pair on the leading page and read the separators on the trailing page without leaving either.

Take Cabernet Sauvignon against Merlot. The catalog gives Cabernet high tannin and medium-plus acidity, with blackcurrant, cassis, and cedar as its signature. Merlot sits at medium tannin and medium acidity, with plum, black cherry, and chocolate. The separator is not "dark fruit" (both have it). It is tannin grip first, then cassis against plum. Our Cabernet Sauvignon vs Merlot guide walks through that call in the glass.

Lighter reds follow the same pattern. Pinot Noir and Gamay both carry low tannin, so tannin cannot separate them. The catalog points elsewhere: Pinot Noir reads as red cherry, cranberry, and mushroom with a savory earth undercurrent, while Gamay reads as juicy raspberry and violet with a lighter, medium-minus body. When the comparison sits on its own page, you can keep a glass in one hand and move between the two grapes with the other.

A good Compare session on a Duo:

1. Choose a pair you missed this week.
2. Read the structure rows before the aroma rows.
3. Say the one separator out loud, then close the phone.
4. Reopen it later. Your pair is still selected, so you can check yourself.

Blind Lab: write the evidence before the ranking

Blind Lab ranks candidate grapes as you add structure and aroma cues. On a phone, the ranking and the notes compete for the same screen, and it is tempting to glance at the leader before you finish describing the wine.

On an open Duo, the notes take the leading page and the ranking takes the trailing page. That makes a better rule easy to follow: fill the notes page completely, then look right.

Try it with Syrah and Grenache, a pair that fools tasters who start from fruit. In the catalog, Syrah carries medium-plus tannin with black pepper, cured meat, and smoke. Grenache has high alcohol, softer medium tannin, and strawberry, garrigue, and white pepper. Record alcohol and tannin first. If the ranking still splits the two, the pepper (black or white) and the fruit color usually settle it. Our Syrah vs Grenache guide has the full separator list.

Fold the phone halfway through a flight and nothing is lost. The notes you entered and the ranking they produced are still there when you open it again.

Drills: the answer on one page, the reason on the other

Train drills are short on purpose. You answer, you see whether you were right, and you move on. The danger is moving on too fast, so a miss never turns into a lesson.

When a Duo is open, a drill reveal puts the explanation on the trailing page: why the right answer is right, the hints you could have used, and up to three facts from the grape dossier. The drill card stays on the leading page, so you read the reason while the question is still in view.

We suggest one rule for drills on a Duo: after every miss, read the trailing page before you tap Continue. It takes ten seconds, and it is the part of the drill that changes your next answer.

Exam practice that survives a fold

Timed practice should feel like the exam: one question, a clock, and a way to jump back to anything you flagged. On an open Duo, Exam Mode keeps the question and its options on the leading page and puts the navigator, progress, and timer on the trailing page.

The bigger change is continuity. A real study session gets interrupted. You fold the phone to answer a message, or you close it to pour the next glass. Sensium keeps a running exam, a quiz in progress, a Path station, and your Compare picks across every fold and unfold. The timer, your answers, and your place come back exactly as you left them.

For written-theory practice, pair timed exams with our WSET Level 3 SAT explained guide, which covers how structure terms map to the systematic approach.

A 20-minute two-page session

Here is the routine we recommend for a weekday evening with two or three glasses:

The order matters more than the device. Evidence first, judgment second, and a written reason for every miss. Two pages make that order the default instead of something you have to remember.

The same routine works on any phone, tablet, or the web. Blind tasting on iPhone Duo simply stops asking you to scroll between the two halves of the method.

Frequently asked questions

Do I need an iPhone Duo to use this method?

No. The method is evidence first, judgment second, and a reason for every miss. On a regular iPhone, finish your Blind Lab notes before you scroll to the ranking, and read the explanation after every missed drill before you continue. On iPad, Compare already shows a pair side by side. Blind tasting on iPhone Duo makes the order automatic because both halves are on screen at once.

What happens to an exam if I fold the phone?

It keeps running. A fold or an unfold keeps the current question, your answers, the questions you flagged, and the timer. The same holds for a quiz in progress, a Path station, and the grapes picked in Compare. Nothing restarts, and you do not lose your place.

Does the outer display do anything different?

The outer display is the regular phone layout, with the same Path, Train, Grapes, Compare, and Coach tabs. It is the quickest way to run a short drill on the go. Open the phone when you want the two-page layouts.

Which grape pairs should I start with?

Start with the pairs that share a fruit profile but split on structure: Cabernet Sauvignon against Merlot (tannin grip), Syrah against Grenache (alcohol and tannin), and Pinot Noir against Gamay (aroma and body, since tannin is low in both). Blind tasting on iPhone Duo pays off most on exactly these pairs, because the separator and the evidence sit on facing pages.

Practice the pairs that cost you points → sensium.wine/compare