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: Increase boiling-water processing by elevation: 20, 25, 30, or 35 minutes across the documented altitude bands.
Source & provenance
Safety classification: Tested recipe from NCHFP.
Marinated whole mushrooms canning safety
| Method | Boiling-water |
|---|---|
| Pack | Hot pack |
| Jar sizes | Half-pints only |
| Headspace | ½ inch |
Safety boundary: Do not omit the lemon pre-cook, reduce acid, increase mushrooms or oil, or use larger jars.
Processing details
- Method
- Boiling_water
- Pack style
- Hot
- Jar sizes
- Half-Pint Jars
- Headspace
- 1/2 inch
- Processing time
- 20/25/30/35 min at 0–1,000 / 1,001–3,000 / 3,001–6,000 / above 6,000 ft
Tested recipe source: National Center for Home Food Preservation (NCHFP)
Marinated whole mushrooms timeline
- Prepare: Use fresh unopened domestic mushrooms and complete the bottled-lemon-juice pre-cook.
- Pack: Add the tested 5% vinegar, oil, vegetables, and seasonings and keep the liquid mixed while filling.
- Process: Boiling-water process in the four altitude bands.
Equipment for marinated whole mushrooms
Affiliate disclosure: Equipment links may earn a commission at no added cost; safety guidance is independent.
- Boiling-water canner with rack
- Half-pints only Mason jars and two-piece lids
- Nonreactive pot, ladle, funnel, jar lifter, and headspace tool
Visual method guide
- Select fresh unopened mushrooms.
- Complete the lemon-juice pre-cook.
- Prepare the full vinegar-oil mixture.
- Keep liquid mixed while filling half-pints.
The official source and WPRM recipe card remain authoritative.
Safety essentials
Tested NCHFP acidified recipe. Use bottled lemon juice and vinegar labeled 5% acidity; use small whole mushrooms and retain tested proportions.
What is marinated whole mushrooms?
A tested half-pint-only whole mushroom marinade with bottled lemon juice, 5% vinegar, and oil.
Before you begin
- Use domestic mushrooms only.
- Use half-pints only.
- Keep the full acid and oil proportions.
Altitude-adjusted processing time
| Jar | 0–1,000 ft | 1,001–3,000 ft | 3,001–6,000 ft | Above 6,000 ft |
|---|---|---|---|---|
| Half-pints only | 20 min | 25 min | 30 min | 35 min |
Marinated Whole Mushrooms — NCHFP
Ingredients
- 7 lb small whole mushrooms caps under 1 1/4 inches
- 1/2 cup bottled lemon juice
- 2 cups olive or salad oil
- 2 1/2 cups white vinegar 5% acidity
- 1 tbsp oregano leaves
- 1 tbsp dried basil leaves
- 1 tbsp canning or pickling salt
- 1/2 cup finely chopped onions
- 1/4 cup diced pimento
- 2 garlic cloves quartered
- 25 black peppercorns
Equipment
- 1 Boiling-water canner For the documented boiling-water process.
- 9 Half-pint canning jars Yield about 9 half-pints.
- 9 Two-piece canning lids Use new flat lids and prepare according to manufacturer directions.
Directions
- Select very fresh unopened mushrooms. Wash and trim stems, leaving 1/4 inch attached.
- Add bottled lemon juice and enough water to cover. Bring to a boil, simmer 5 minutes, and drain.
- Mix oil, vinegar, oregano, basil, and salt. Stir in onions and pimento and heat to boiling.
- Place 1/4 garlic clove and 2 to 3 peppercorns in each half-pint jar.
- Fill jars with mushrooms and hot, well-mixed oil/vinegar solution, leaving 1/2-inch headspace.
- Process half-pints 20 minutes at 0–1,000 ft, 25 minutes at 1,001–3,000 ft, 30 minutes at 3,001–6,000 ft, or 35 minutes above 6,000 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 marinated whole mushrooms
Serve chilled in antipasto, salads, pasta, or as an appetizer.
Marinated whole mushrooms questions
Can sliced mushrooms be substituted?
Use fresh unopened whole mushrooms as specified by the tested recipe.
Can I use larger jars?
No. Use only the jar sizes listed in the tested schedule.
What if a jar does not seal?
Refrigerate promptly or follow authoritative reprocessing guidance within the permitted time.
Marinated versus plain mushrooms
Marinated mushrooms are acidified and boiling-water canned; plain mushrooms use a pressure-canning process.
Marinated whole mushrooms troubleshooting
Why is the marinade uneven?
Keep the oil-vinegar solution well mixed throughout filling.
What if processing was interrupted?
Follow the authoritative restart rule for the selected
Source & provenance
NCHFP, “Marinated whole mushrooms”. Adapted from USDA guidance, revised 2015.
Editorial review: Supporting blocks checked against the official source on September 20, 2026. The WPRM recipe card was preserved.
Garden planning for this recipe
Plant, space, variety, zone, and timing estimates live on dedicated ingredient pages:
Typical canning season
Season: Fall
Months: September, October, November
How much of the main ingredient should I grow?
8–16 lb of Mushrooms per person per year
This is an annual planning range that includes preserving and typical fresh use. Plant, row-foot, and square-foot estimates are shown only when compatible cited yield or spacing data is available.
Garden yields vary by cultivar, climate, soil, pests, and care. Always measure the exact prepared ingredient amount required by the tested canning recipe.