Preserve Smart is no longer supported as a mobile phone app.
Please continue to use our website which includes all the same information and functionality.
If this is your first time freezing or it has been awhile, it is recommended that you read General Freezing Information before beginning.
1. Selection & Ingredients
Select asparagus at peak flavor and texture. Do not use asparagus that show signs of decay or mold.
2-3 pounds of asparagus per quart container
Ice (approx. 1 pound/pound vegetables)
2. Equipment
Large cooking pot with lid
Blanching basket/strainer/slotted spoon
Colander
Cutting board
Knife
Use clean packing containers and materials that are moisture and vapor-proof/resistant:
Rigid containers (glass jars and hard plastic containers) are especially good for freezing foods with liquid. Covers for rigid containers should fit tightly.
Square or rectangular, straight-sided rigid plastic containers make the best use of freezer space.
Wide-mouth, dual-purpose glass jars made for canning and freezing are tempered to withstand extremes in temperature and allow for easier removal of partially-thawed foods.
Narrow-mouth dual-purpose glass jars can also be used but require greater headspace (to avoid expansion breakage at the shoulder) and foods must be completely thawed before removal.
Flexible bags or wrappings (plastic freezer bags, freezer paper or wrap, and heavyweight aluminum foil) are best for freezing food products with little or no liquid.
Vacuum packagingremoves more oxygen than other freezing methods (Refer to manufacturer's instructions.)
3. Prepare Equipment
Before use, wash containers in hot soapy water and rinse well. Dry.
4. Prepare Vegetables
Thoroughly wash asparagus.
Remove or break off tough ends and scales.
Sort for size. Cut to fit in containers or in 2-inch lengths.
Blanch in boiling water for amount of time indicated in table below.
Use one gallon water per pound of prepared asparagus.
Lower asparagus into vigorously boiling water. Place a lid on the pot.
Start timing as soon as vegetables are in boiling water.
Cool in ice water. Drain well.
NOTE: Cooling should take the same amount of time as blanching.
Asparagus Size
Below 5,000 ft
5,000 ft and above
Medium stalks
3 minutes
4 minutes
Large stalks
4 minutes
5 minutes
5. Pack
Pack tightly into containers, bags, or wrap.
Make sure sealing edges are free of moisture or food.
Remove as much air as possible and seal.
6. Store
Label with the name of food, date, and type of pack.
Freeze as quickly as possible to 0°F or below.
For quickest freezing, place containers in single layers in freezer.
Most frozen vegetables will maintain high quality for 12-18 months at 0°F or below.