California Walnuts:

This amazing little nut made its first known appearance in 1400 BC. The book of Numbers in the Bible tells of Aaron’s rod that blossomed and bore almonds, using them as a symbol to represent the divine approval of Aaron by God. In 100 AD almonds were used as a fertility blessing by the Romans. Eventually, almonds were brought to California in the mid 1700s by Franciscan Padres. However, it wasn’t until a century later that almonds would make it to the central valley. Now they are the largest U.S. specialty crop export, as well as the top agricultural export of the state of California.

OUR TOP SIX CALIFORNIA PREMIUM VARIETIES:

CHANDLER

Chandlers are late bloomers and harvest toward the end of September to the middle of October. This variety is prized for having large and smooth textured nuts. They have a well-sealed shell and a pearly-white kernel. Chandlers have the highest color grade for all walnut varieties.

HARTLEY

Hartleys are harvested in mid-late season. The nut is fairly large and has a pointed tip. It has a thin, but well-sealed shell. Crack-out and light color percentages are lower than other varieties.


HOWARD


Howard is harvested in mid-season from the middle to end of September. It produces a large, round and smooth nut. It has a high percentage of
light kernels and a well-sealed shell.

SERR


Serr harvests early to mid-season. Crack-out is 59% with a large kernel size of over 7 grams. Shell seal is fair to good. Color is also fair at 60% light kernels.


TULARE

Tulare is harvested in mid-season. This variety is known for high quality kernels at 7.5 grams. It has fair crack-out of 59%, and good percentage of light kernels. Nuts are large, mostly round and well-sealed.

VINA

Vina harvest is early to mid-season. It produces a high quality, medium sized kernel. Shells are pointed and well-sealed.

 

 

Shelled Walnut Sizes

California shelled walnuts are available in a variety of sizes. Descriptions and size tolerances are based on the USDA Standards for Grades of Shelled Walnuts.

USDA Standard Sizes for Shelled Walnuts

Walnut Halves

Description: 7/8 or more of the kernel is intact. 85 % or more of lot, by weight, are half kernels with the remainder three-fourths half kernels.

USDA Size Tolerances: No more than 5 % smaller than three-fourths halves of which no more than 1% may pass through 16/64 inch (6.35 mm) round screen hole.

Walnut Pieces and Halves

Description: 20% or more of lot, by weight, are half kernels (7/8 or more of the kernel is intact).

USDA Size Tolerances: No more than 18 % shall pass through 24/64 inch (9.52 mm) round hole of which no more than 3 % may pass through 16/64 inch (6.35 mm) and of 3 % no more than 1 % may pass through 8/64 inch (3.18 mm) round screen hole.

Walnut Pieces

Description: Portions of kernels in lot cannot pass through 24/64 inch (9.53 mm) round openings.

USDA Size Tolerances: No more than 25 % shall pass through 24/64 inch (9.53 mm) round hole of which no more than 5 % may pass through 16/64 inch (6.35 mm) and of 5 % no more than 1 % may pass through 8/64 inch (3.18 mm) round hole included in the 5 %.

Walnut Small Pieces

Description: Portions of kernels in lot pass through 24/64 inch (9.53 mm) round openings but cannot pass through 8/64 inch (3.18 mm) round openings.

USDA Size Tolerances: 10 % will not pass through 24/64 inch (9.53 mm) round hole and 2 % pass through 8/64 inch (3.18 mm) round hole.

 

 

Shelled Walnut Colors

California walnuts may be color sorted to meet specific product needs. The walnut spectrum chart (for comparison only) illustrates the wide range of color classifications available.

A Extra light:

No more than 15% shall be darker than extra light of which only 2% (included in the 15%) may be darker than light.

B Light:

No more than 15% shall be darker than light of which only 2% (included in the 15%) may be darker than light amber.

C Light amber:

No more than 15% shall be darker than light amber of which only 2% (included in the 15%) may be darker than amber.

D Amber:

No more than 10% shall be darker than amber.