Pineapple skins are surprisingly useful. You can turn them into a fermented drink, brew them into tea, use them to tenderize meat, apply them to your skin, or compost them for your garden. The skins contain bromelain, the same protein-breaking enzyme found in the fruit flesh, along with vitamin C, polyphenols, and flavonoids. Here’s how to put all of that to work.
Clean the Skins First
Before using pineapple skins for anything you’ll eat, drink, or put on your skin, give them a good scrub. Wash the whole pineapple under running water with a vegetable brush before you cut it. If your pineapple isn’t organic, soaking the cut skins in a baking soda solution (about a tablespoon per quart of water) for 10 to 15 minutes helps remove pesticide residues more effectively than vinegar. Rinse thoroughly afterward. Skip the vinegar for pesticide removal specifically, as it can neutralize the baking soda’s cleaning action.
Make Tepache, a Fermented Pineapple Drink
Tepache is a lightly fizzy, naturally fermented Mexican drink, and it’s the single most popular use for pineapple skins. The wild yeast already living on the peel does most of the work. You just need skins, sugar, and water.
For one batch, combine the skins and cores from two ripe pineapples (roughly 28 ounces total) with about 10 cups of filtered water and one pound of piloncillo, panela, or brown sugar. Stir everything together in a large glass jar or ceramic crock and cover it loosely with a cloth or lid that isn’t airtight.
Store the jar out of direct sunlight at warm room temperature, ideally between 70 and 78°F. Stir it once a day. Within 24 to 72 hours at warmer temperatures (77 to 86°F), you’ll see a thin layer of frothy white bubbles and hear faint fizzing. In a cooler kitchen, expect the process to take 5 to 10 days. If no bubbles appear by day five, move the jar somewhere warmer and keep stirring daily. Once it’s bubbly, strain out the solids. For a funkier, more complex flavor, let it ferment an extra day or two before straining. The finished tepache keeps in the fridge for about a week.
Brew Pineapple Skin Tea
If fermentation feels like too much of a commitment, tea is the simplest option. Place the skins and core from one pineapple in a saucepan with 8 to 10 cups of water. You can add a cinnamon stick, a few cloves, or a slice of ginger if you like. Bring it to a boil over medium-high heat for about 5 minutes, then reduce to a simmer and let it cook for 35 to 40 minutes. Check occasionally and add more water if the level drops too low.
Strain out the solids, sweeten to taste if needed, and drink it warm or chilled over ice. The result is a light, naturally sweet drink with a mild tropical flavor. Keep leftovers in the fridge for up to three days.
Tenderize Meat
The bromelain in pineapple skins breaks down protein fibers in meat, making it a natural tenderizer. Lab measurements show that bromelain activity in pineapple peel extract can reach 7.2 units per milliliter, which is actually comparable to or higher than levels found in the flesh itself.
To use it, rub the inner (fleshy) side of the skin directly over your cut of meat, or squeeze juice from the skin onto the surface. Cover with plastic wrap and refrigerate for about one hour. Don’t go much longer than that. Because bromelain is so effective at breaking down protein, leaving it on for several hours will turn the outer layer of your meat mushy rather than tender. After marinating, cook as usual. Tougher cuts like chuck roast or flank steak benefit most.
Use It on Your Skin
Bromelain acts as a gentle exfoliant by breaking down the proteins that hold dead skin cells together. This promotes cell turnover without the harshness of stronger chemical peels, and the vitamin C and flavonoids in the peel add antioxidant protection.
The simplest approach: rub the inner side of a fresh pineapple skin gently over clean, damp facial skin for 30 seconds to a minute, then rinse thoroughly. This gives a mild exfoliating effect. Do a patch test on the inside of your wrist first and wait 24 hours, since bromelain can cause irritation on sensitive skin. If you want a more shelf-stable option, cold-infusing pineapple peels in water or alcohol extracts the enzymes and antioxidants without destroying them through heat. However, commercially formulated serums and masks that use stabilized pineapple peel extract will deliver more consistent, reliable results than anything you make at the kitchen counter.
Add Flavor to Cooking
Beyond drinks and marinades, pineapple skins work well as a flavoring agent. Simmer them in simple syrup for 20 to 30 minutes to create a tropical syrup for cocktails, pancakes, or shaved ice. You can also add a few pieces of skin to a pot of rice as it cooks for subtle sweetness, then remove them before serving. Dehydrated pineapple skins, dried in an oven at low heat (around 200°F) for several hours or in a food dehydrator, can be ground into a powder and used as a natural sweetener or flavoring in smoothies, oatmeal, or baked goods.
Compost Them for Your Garden
If none of the above appeals to you, composting is still better than the trash can. Pineapple skins are lignocellulosic biomass, which is a technical way of saying they’re tough and fibrous. They decompose slowly compared to softer fruit scraps. In a well-managed compost pile, expect the full process to take roughly four months.
Raw pineapple skins are acidic, with a pH around 4.8. That acidity won’t ruin your compost, but it helps to balance it with “brown” materials like dried leaves, cardboard, or straw, and to mix in nitrogen-rich additions like grass clippings or coffee grounds. As microbial decomposition progresses, the pH naturally rises and the nitrogen content of the finished compost increases. Chopping the skins into smaller pieces speeds up breakdown significantly, since the tough outer rind resists decomposition when left in large chunks.
Safety Considerations
Bromelain is generally well tolerated when consumed in food amounts. The most common side effects from high intake are stomach upset and diarrhea. If you’re taking blood thinners or other medications, be aware that bromelain can interact with certain drugs. The safety of concentrated bromelain supplements during pregnancy or breastfeeding hasn’t been well studied, though the amounts you’d get from drinking pineapple skin tea or tepache are far lower than supplement doses.
The bigger practical concern is mouth and throat irritation. That tingling you feel eating fresh pineapple comes from bromelain breaking down proteins on the surface of your mouth. The same thing can happen with pineapple skin preparations, especially if they’re concentrated. Diluting with plenty of water (as in tea or tepache) reduces this effect. If you’re using skins topically, keep contact time short and rinse well.