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Commercial Grades

Commercial grade is determined by maturity. Number 1 least mature, number 6 fully mature. Veil area, thin membrane between cap and stem, and cap form are primary focal points.

Click on photos to enlarge.
Click on "Other Views" to see Top & Side Views Grades 1 - 4 

Number 1
No breaks in veil, minimum length 2.5 inch
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Number 2
Minimum 50% of veil attached to cap.
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Number 3
Any portion of veil attacked to cap.
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Number 4
No veil attached, distinct curl on edges of cap.
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Number 5
Slight curl or flat cap.

Number 6
Cap turned up, fully mature.

Damaged mushrooms are down graded according to severity of damage.

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