Red Raspberry Product Forms
Washington red raspberries are processed for commercial use
by freezing, concentrating, aseptic packing, and canning
For a list of Washington’s processors, and their products, go to the following:
Each of these producers has specific information about their products.
BLOCK FROZEN RED RASPBERRIES
Block frozen red raspberries are frozen in their own juices. Cleaned, sorted and graded berries are packed in plastic or metal pails. Standard block frozen container weights are 6.5 lb. (2.925kg) and 28/30 lb. (12.6/13.5kg). Institutional packs are also available in 400 lb. (180kg) drums lined with 2-4 mil plastic bagging.
Block frozen red raspberries may be purchased with or without sugar sweetening or syrup. Raspberries that are block frozen without sugar are referred to as "straight pack." Block frozen raspberries with sugar or syrup sweetening combinations are available in ratios of 4+1 (4 parts red raspberries to 1 part sugar) or greater sweetening.
INDIVIDUALLY QUICK FROZEN (IQF)
These are the choicest whole frozen raspberries. "Individual" raspberries are frozen in a quick freeze tunnel or on trays at temperatures between -5° to -10° Fahrenheit (-20-23° Celsius). This "quick freezing" seals in juices and maintains the original shape of each berry. IQF red raspberries are packed in poly bags and sealed in corrugated fiber cartons. This ensures that each IQF red raspberry is "fresh frozen" and protected from damage or shipping shock.
IQF red raspberry packs range from 12-(336g), 16-(448g), and 32-ounce(869g) poly bags for retail sale to 30lb. (13.5kg) cartons. Restaurant, institutional, and foodservice packs of six 5 lb. (2.25kg) IQF packages to a case are also offered.
FROZEN RED RASPBERRY PUREE
Red raspberry puree is produced by passing cleaned and sorted berries through a sieve to achieve a consistent particle size. Screen meshes from .030 to .125 inch determine the fineness of puree and the amount of seed removed. Red raspberry puree may be processed at ambient temperatures or heated for pasteurization. Puree of red raspberries is frozen at -5° to -10° Fahrenheit (-20-23° Celsius). The most common puree packs are 6.5 lb. (2.925kg) and 28 lb. (12.6kg) containers and 400lb. (180kg) drums. Puree may be custom packed in quart and gallon equivalents. Puree is also available in concentrated form.
RED RASPBERRY CONCENTRATE
Concentrate is an intense capture of both red raspberry essence and form. Red raspberry juice is first extracted from the fruit. This juice is filtered and heated. High temperature allows the flavor and aroma (called "essence") to be distilled from the concentrate. The essence is captured in liquid form and may be packed separately or mixed back into the concentrate (called "recapture).
Red raspberry concentrate is specified in Brix. Degrees brix is the approximate percent of sugar or soluble solids. Single-strength juice may be concentrated to a maximum level of 60-65° Brix. Red raspberry concentrates are packed in 50 gallon (190 liter) drums and 5 gallon (19 liter) enamel-lined cans or 4,5, and 6 lb. (1.8, 2.25, and 2.7 kg) poly-lined pails with essence packed separately or recaptured.
RED RASPBERRY PRODUCT FORM SPECIFICATIONS
a guide for product formulation
|Single Strength Puree||
8° to 15° Brix
20° to 28° Brix
|Single Strength Juice||
45°, 65° and 68° Brix
How are red raspberries shipped?/In what types of quantities?
Quantity and packaging depend on the product. Straight pack and frozen red raspberry puree are shipped in 28 pound pails or 400 pound drums. IQF berries are sold in 336 g, 448 g, and 869 g poly bags for retail sale; and in 30 pound. (13.5kg) cartons for bulk use. Restaurant, institutional, and foodservice packs of six 5 lb. (2.25kg) IQF packages to a case are also offered. Red raspberry juice concentrate is sold in 50 gallon (190 liter) drums and 5 gallon (19 liter) enamel-lined cans or 4,5, and 6 lb. (1.8, 2.25, and 2.7 kg) poly-lined pails with essence packed separately or recaptured.