What you need to make toothpaste tablets

Toothpaste tablets are solid blocks that you chew or dissolve in your mouth instead of squeezing paste from a tube. Making them at home requires only a few dry ingredients, a small mold, and about 15 minutes of mixing time. The result is a batch that lasts several months and costs less than a dollar per tablet.

The core ingredients are calcium carbonate (a mild abrasive that cleans), baking soda (which neutralizes acid), xylitol (a sweetener that prevents decay), and peppermint powder or essential oil (for flavor). Calcium carbonate is sold in health stores and online as a supplement; food-grade versions are what you need. You can skip any ingredient except calcium carbonate and baking soda without breaking the recipe, though flavor and sweetness will change.

You will also need a small silicone mold — ice cube trays work, or you can buy tablet molds online for a few dollars. A mortar and pestle, a small bowl, and a spoon are enough for mixing. If you use essential oils instead of powder, you need just 2 to 3 drops per batch.

Key Takeaways

  • The basic recipe is calcium carbonate, baking soda, xylitol, and peppermint, mixed dry and pressed into a silicone mold.
  • One batch of 12 to 16 tablets takes about 15 minutes to mix and press, then 24 hours to harden.
  • Calcium carbonate is the only ingredient that is hard to find in a regular grocery store; the rest are common baking supplies.
  • Tablets stay fresh in an airtight container for several months and cost roughly 10 to 20 cents each to make.
  • You chew the tablet until it breaks down, then brush your teeth normally with a wet toothbrush.

The basic recipe and measurements

Mix 3 tablespoons of calcium carbonate, 2 tablespoons of baking soda, 1 tablespoon of xylitol powder, and 1 teaspoon of peppermint powder in a small bowl. If you do not have peppermint powder, use 2 to 3 drops of peppermint essential oil instead — add it last and stir well so the oil spreads evenly. This makes 12 to 16 tablets depending on mold size.

Stir the dry ingredients together for one minute. The mixture should look like fine sand. If it clumps, break the clumps with the back of a spoon. Do not add water; the mixture should stay completely dry. If you used essential oil, the mixture may feel slightly damp, which is normal.

You can double or triple this recipe. The ratio stays the same: 3 parts calcium carbonate, 2 parts baking soda, 1 part xylitol, and 1 part flavoring. Store any extra dry mixture in an airtight jar for up to six months.

Pressing and molding the tablets

Spoon the mixture into your silicone mold, filling each cavity about three-quarters full. Press down firmly with the back of the spoon or your thumb until the mixture is compact and level with the top of the mold. The tablets should feel solid and not crumbly when you press them.

Let the mold sit uncovered at room temperature for 24 hours. Do not refrigerate or freeze. After 24 hours, pop the tablets out of the mold by flexing the silicone gently. If a tablet crumbles when you remove it, the mixture was too dry; add one more drop of water or oil to the next batch.

Store finished tablets in an airtight container — a glass jar with a tight lid works well. Keep them in a cool, dry place away from direct sunlight. They will last three to six months.

Adjusting flavor and texture

Peppermint is the standard flavor, but you can use spearmint, cinnamon, or clove powder instead. Use the same amount — one teaspoon per batch. If you want a stronger flavor, increase it to one and a half teaspoons, but do not go higher or the tablets may taste bitter.

If your tablets feel too gritty, you can grind the dry mixture in a food processor for 30 seconds before molding. This makes the texture smoother but does not change how well they clean. If they feel too soft or crumbly, increase the calcium carbonate by half a tablespoon and reduce the xylitol by the same amount.

Some people add a pinch of sea salt for extra mineral content, or a few drops of coconut oil for creaminess. Both are optional. Coconut oil will make the tablets slightly softer, so reduce it to one-quarter teaspoon if you try it.

Using your toothpaste tablets

Pop one tablet into your mouth and chew it for 10 to 20 seconds until it breaks down into a paste. Wet your toothbrush and brush your teeth normally for two minutes. Spit and rinse. One tablet cleans about as well as a pea-sized amount of tube toothpaste.

If you find the tablet too hard to chew, let it sit in your mouth for a few seconds before chewing — saliva will soften it. Some people prefer to chew it into a paste first, then dip their wet toothbrush into the paste in their mouth. Either method works.

Tablets are portable and do not spill, which makes them useful for travel or keeping at your desk. They also do not contain water, so they do not support bacterial growth the way tube toothpaste can.

Where to buy ingredients if you cannot find them locally

Calcium carbonate is the hardest ingredient to find in a regular grocery store. Health food stores often stock it as a supplement in the vitamin aisle. Online retailers including Amazon, iHerb, and specialty supplement sites sell food-grade calcium carbonate in bulk. A one-pound bag costs between five and ten dollars and makes dozens of batches.

Baking soda, xylitol powder, and peppermint powder are available in most grocery stores in the baking aisle. If your store does not carry xylitol, it is sold at health food stores and online. Peppermint essential oil is cheaper than peppermint powder and lasts longer; one small bottle makes hundreds of batches.

Silicone molds designed for tablets are sold online for two to five dollars. Ice cube trays work just as well and cost less if you already own one.

Cost and storage comparison

A single batch of 12 to 16 tablets costs roughly 50 cents to one dollar in ingredients. That works out to about 10 to 20 cents per tablet. A standard tube of commercial toothpaste costs two to five dollars and contains roughly 100 uses, or 2 to 5 cents per use — so homemade tablets are comparable in price but last longer because you use less per brushing.

Homemade tablets do not contain preservatives, so they must be stored in an airtight container away from moisture. A glass jar with a rubber seal works best. Do not store them in the bathroom if your bathroom gets steamy from showers; the humidity will soften them. A bedroom closet or kitchen cabinet is better.

If you make a large batch and store it properly, tablets will stay firm and effective for six months. After that, they may soften slightly but are still usable.

Frequently Asked Questions

Can I use regular baking soda instead of food-grade?

Yes. Baking soda sold for baking is food-grade. The only difference between baking soda and "food-grade" labeled baking soda is the label — they are the same product. Use whatever you have.

What if I do not have xylitol?

You can leave it out. Xylitol helps prevent decay and makes the tablets taste better, but the tablets will still clean your teeth without it. If you skip it, increase the baking soda by one tablespoon to keep the texture firm.

Do toothpaste tablets have fluoride?

This recipe does not include fluoride. If you want fluoride, you can add a small amount of sodium fluoride powder, but it must be food-grade and measured carefully — too much is harmful. Most people find the calcium carbonate and baking soda clean adequately without it.

How do I know if my tablets are too soft?

After 24 hours, they should feel hard and not crumble when you squeeze them gently. If they fall apart, the mixture was too wet or you did not press them firmly enough. Let them sit another 12 hours, or remake the batch with less liquid or more calcium carbonate.

Can I add whitening ingredients?

Activated charcoal is sometimes added for whitening, but it can stain grout and is abrasive. If you want to try it, use one-quarter teaspoon per batch and mix it in last so it spreads evenly. Hydrogen peroxide is not recommended because it breaks down quickly in a dry tablet.