Safety classification
Tested
Testing authority: National Center for Home Food Preservation (University of Georgia / USDA-derived guidance)
Safety reviewed: 09/09/2026
Processing details
Altitude adjustment: Dial gauge: 11 psi at 0–2,000 ft; 12 psi at 2,001–4,000 ft; 13 psi at 4,001–6,000 ft; 14 psi at 6,001–8,000 ft. Weighted gauge: 10 psi at 0–1,000 ft; 15 psi above 1,000 ft.
Source & provenance
Safety classification: Tested recipe from NCHFP.
Whole or minced clams canning safety
| Method | Pressure |
|---|---|
| Pack | Hot prepared clam pack |
| Jar sizes | Half-pints or pints |
| Headspace | 1 inch |
| Yield/limit | Use live clams and only the listed jar sizes |
Safety boundary: Do not omit the acid boil, use larger jars, or substitute another seafood process.
Processing details
- Method
- Pressure
- Pack style
- Hot
- Jar sizes
- Half-Pint or Pint Jars
- Headspace
- 1 inch
- Processing time
- Half-pints: 60 min; Pints: 70 min
Tested recipe source: National Center for Home Food Preservation (NCHFP)
Whole or minced clams timeline
- Prepare: Keep live clams on ice, scrub, steam 5 minutes, open, remove meat, and save clean juice.
- Pack: Wash meat in salted water, rinse, complete the required lemon-juice or citric-acid boil, drain, and pack loosely with hot juice and boiling water.
- Process: Pressure-can half-pints 60 minutes or pints 70 minutes.
Equipment for whole or minced clams
Affiliate disclosure: Equipment links may earn a commission at no added cost; safety guidance is independent.
- Pressure canner with rack and tested dial or weighted gauge
- Half-pints or pints Mason jars with two-piece lids
- Large pot,
canning funnel, jar lifter, headspace tool, and bubble remover
Visual method guide
- Scrub live clams and steam 5 minutes.
- Remove meat and save clean clam juice.
- Complete the required acidified 2-minute boil and drain.
- Pack loosely with hot liquid and pressure-can.
The official source and WPRM recipe card remain authoritative.
Safety essentials
Tested NCHFP pressure-canning procedure. Preserve the documented washing and acidified boiling-water pretreatment.
What is whole or minced clams?
This tested process preserves prepared whole or minced clam meat with hot clam juice and water.
Before you begin
- Keep live clams on ice until preparation.
- Use the specified lemon juice or citric acid treatment.
- Minced clams are ground only after the tested preparation.
Altitude-adjusted pressure schedule
| Jar/product | Time | 0–2,000 ft | 2,001–4,000 ft | 4,001–6,000 ft | 6,001–8,000 ft |
|---|---|---|---|---|---|
| Half-pints | 60 min | 11 psi | 12 psi | 13 psi | 14 psi |
| Pints | 70 min | 11 psi | 12 psi | 13 psi | 14 psi |
| Jar/product | Time | 0–1,000 ft | Above 1,000 ft |
|---|---|---|---|
| Half-pints | 60 min | 10 psi | 15 psi |
| Pints | 70 min | 10 psi | 15 psi |
Clams — NCHFP
Ingredients
- live clams keep on ice until ready to can
- 1 tsp salt per quart of wash water
- 2 tbsp lemon juice per gallon of boiling pretreatment water; or use 1/2 tsp citric acid per gallon
- clam juice and boiling water for filling jars
Equipment
- 1 Pressure canner Dial- or weighted-gauge pressure canner appropriate for altitude.
- As needed Canning jars Half-pints or pints only.
- As needed Two-piece canning lids Use new flat lids and prepare according to manufacturer directions.
Directions
- Scrub live clams thoroughly, rinse, steam 5 minutes, open, remove meat, and save the clam juice.
- Wash clam meat in water containing 1 teaspoon salt per quart. Rinse, cover with boiling water containing 2 tablespoons lemon juice or 1/2 teaspoon citric acid per gallon, boil 2 minutes, and drain.
- For minced clams, grind prepared clam meat. Fill jars loosely and add hot clam juice and boiling water if needed, leaving 1-inch headspace.
- Pressure process half-pints 60 minutes or pints 70 minutes.
- Dial gauge: 11/12/13/14 psi at 0–2,000/2,001–4,000/4,001–6,000/6,001–8,000 ft. Weighted gauge: 10 psi through 1,000 ft and 15 psi above 1,000 ft.
Recipe Notes
Private Notes
Questions or results?
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Tried this recipe?
Share your results how it turned out.How to serve whole or minced clams
Use in chowders, sauces, dips, pasta, stuffing, and clam cakes after thorough heating.
Whole or minced clams questions
Can the acid boil be omitted?
No. It is part of the tested preparation.
Can I use a boiling-water canner?
No. This low-acid food requires pressure
What if pressure drops?
Restore the required pressure and restart the full processing time.
Whole versus minced clams
Both complete the same cleaning and acid boil; prepared meat may then remain in pieces or be minced.
Whole or minced clams troubleshooting
Why is clam juice gritty?
Scrub shells thoroughly, rinse meat as directed, and use only clean saved juice.
What if a jar does not seal?
Refrigerate promptly or follow authoritative reprocessing guidance within the permitted time.
Source & provenance
NCHFP, “Clams”. Adapted from the USDA Complete Guide to Home
Editorial review: Supporting blocks checked against the official source on September 20, 2026. The WPRM recipe card was preserved.
Typical canning season
Season: All Year
Months: January, February, March, April, May, June, July, August, September, October, November, December
How much of the main ingredient should I grow?
Not applicable as a garden crop; plan purchases or harvest separately
This recipe does not have a reliable garden conversion. Plan a purchase or harvest separately, and do not use garden estimates to alter the tested recipe.
Garden yields vary by cultivar, climate, soil, pests, and care. Always measure the exact prepared ingredient amount required by the tested canning recipe.