By Betsy Vail 09/14/2025
There are some secret ingredients that make someone’s cooking noticeably better. You don’t know why their food is better, but it’s definitely better! This is that secret ingredient – pineapple vinegar.
This is also a great way to use the scrap bits of pineapple to make a delicious, probiotic-rich vinegar while also reducing waste by using the bits that would have otherwise been thrown away.
Ingredients:
- Pineapple scraps from 1 ripe pineapple (preferably organic)
- ¼ c organic cane sugar
- Filtered water (dechlorinated, bottled, or distilled water)
- Pineapple vinegar mother (if available. See the Note in Direction #7 below.)
- ½ gallon sized glass jar
- Coffee filters (a clean cheese cloth, dish towel, or square of fabric would work too)
- Rubber band
Directions:
- Use RIPE pineapple scraps in this recipe. You can determine if the pineapple is ripe by smelling the base. A ripe pineapple will smell sweet.
- Remove the pineapple crown (leaves), then wash the pineapple with warm, soapy water. Be sure to rinse it thoroughly.
- Cut the pineapple scraps into chunks and boil them in water for 5 minutes. This will help kill any mold and reduce the growth of kahm yeast. Note: If mold grows (colored, fuzzy growth) during fermentation, discard the batch and start over. If kahm yeast grows (white web-like film), remove it with a spoon and continue fermentation.
- Add the sugar into the bottom of the jar with about a cup of water. Stir the mixture to dissolve the sugar.
- Add the cooked pineapple chunks (drained) to the jar and cover the lid with a coffee filter. Allow the pineapple to cool thoroughly.
- Once the pineapple is completely cool, add filtered, dechlorinated water to the jar until the water reaches the shoulder of the jar (not completely full). This will allow room in the jar for the fermentation to bubble up. Note: Chlorine interferes with the fermentation process, so that’s why it’s necessary for that to be removed from the water.
- Add the mother culture to the jar (if available). Since the pineapple was boiled, it is necessary to use a mother culture to help kickstart the fermentation process. Note: If you do not have a vinegar mother culture, do not boil the pineapple because microbes are needed for fermentation.
- Stir the mixture. I use the long handle of a wooden spoon to stir.
- Place a coffee filter over the lid and secure it with a rubber band.
- Put the jar into a bowl just in case the liquid bubbles up and overflows during the fermentation process.
- Stir the mixture twice a day and allow it to ferment at room temperature for 30 days.
- You should notice the mixture bubble by the end of the first week. Pineapple vinegar is made with a two-part fermentation process. First, yeast consumes sugars within the fruit to produce alcohol in an aerobic (with the acetobacter bacteria in the air) alcoholic fermentation process. Second, acetic acid bacteria consume the alcohol from step one and convert it into acetic acid. Once all the alcohol is metabolized by bacteria and converted into acetic acid, you have vinegar. Use pH test strips to determine when the fermentation is complete. When fermentation is complete the pH should be between 3 - 4. I use the Hydrion brand pH strips, but other brands work too. Just be sure your brand is in the low range of the pH scale. Note: Use a spoon to remove a small sample of vinegar for pH testing so the batch in the jar is not contaminated with the chemicals from the pH strips.
- After 30 days of fermentation, strain out all the pineapple pieces using a fine mesh strainer over a bowl. Line the strainer with damp cheese cloth or a clean, dampened dish towel before straining the vinegar through it. Once the liquid has passed through, be sure to squeeze the remaining liquid from the pulp caught in the cloth. Note: dampening the cloth prevents the cloth from absorbing your vinegar, so more of the vinegar passes through. Also, it may be best to dampen the cloth using dechlorinated water.
- Decant the vinegar into a bottle (or bottles) using a funnel, and seal it with an airtight lid. Because vinegar is acidic, it is shelf stable and can be stored indefinitely (in theory) at room temperature in your pantry. Since homemade products are less predictable than store-bought products, try to use your vinegar within a year.
- The vinegar mother is in the vinegar, is rich in probiotics, and will settle on the bottom. You can keep this to start your next batch of vinegar!
Creative Considerations:
Use pineapple vinegar for:
- Sauces
- Marinades
- Salad dressings
- Mixed drinks
- Spritz on your BBQ and smoked meats
It’s the secret ingredient that makes your food sing!

