White asparagus with a shrimp mouseline.
Asparagus are divided into classes depending on the thickness and beauty.
In terms of thickness, the AA-size (20-28 mm) considered optimal, but also the A (16-20 mm), B (12-16 mm) and AAA (> 28 mm) sizes, if the asparagus more beautiful is the highest grade counted.
To be superior in quality to be applied, an asparagus straight, long enough, have no discoloration to the head, not an open cup, not hollow, contain no damage, no rust (brown spots) and having a good regular appearance have.Dutch white asparagus bear a label since 2006. This blue label, with Dutch flag ensures that the shoots of Dutch origin, and is, thus far, only the higher (AA-) ranges used.
Compared to other vegetables asparagus very expensive, the price is highly dependent on the weather. This is because the crop is very labor-intensive: each stem should be separately identified on the ground and then underground by hand to the right length to be cut.