United States
US Maps and Comparison Exercises
Pacific fog, rain shadows cast by the Cascade Range, and lakes and seas in the east. Learn how to interpret AVAs and connect to grape varieties, extraction, and barrel aging.
Read the key points in the diagram
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Distinguish the proportion of origin.
If you have 80% variety, 90% within AVA, and vintage indication at 93%, then what about AVA wines with a vintage on the label?
Read the comparison table and reasoning
| Items for comparison. | Grape variety label | AVA and the display of vintage |
|---|---|---|
| Federal basics | At least 75% single variety | At least 85% within the AVA |
| If displaying the vintage (year) | Judge separately from the percentage of varieties | With AVA, at least 95% must be from the stated year |
| Additional requirements in the state | Oregon Pinot, etc.: 90% | Check state-specific origin requirements as well. |
Does not meet the 95% requirement for vintage labeling. Distinguish what the numbers are measuring.
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Two ways to read "cooling"
Can you explain the same climate just based on the shared west coast?
Read the comparison table and reasoning
| Items for comparison. | Napa’s Bay and fog | Washington mountain ranges |
|---|---|---|
| Observed terrain | Bay, valley, and mountains | East and west of the Cascade Mountains |
| Key relationships | Routes and elevation for fog | Rain shadow east of the mountain range |
| Go to viticulture | Examine sunlight and ripening | Consider drying and irrigation |
Read separately about the positions of the sea and mountains, and the mechanisms of cooling and rainfall.
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Two numbers related to barrels.
Are the two percentages inconsistent?
Read the comparison table and reasoning
| Items for comparison. | 100% American oak | 19% new barrels |
|---|---|---|
| Subject | Types of barrel wood. | Barrel usage history. |
| Meaning of “remaining” | In this example, only one type of wood is used for barrels. | 81% is not new barrels |
| Additional information listed together | Maturation period: 16 months | Subject: Lytton Springs 2023. |
There is no contradiction because different items are being measured.
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CHECK YOUR UNDERSTANDING
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