How to Make Slime with Baking Salt

Slime sparks the imagination of both children and adults. The good news is that the process also makes for an enjoyable learning experience. There are many ways to make slime from ingredients you already have at home, including baking soda and milk. You can make a basic slime or add some fun with a bowl of bubbly slime.

Table of Contents

Make slime from soap

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Measure out 1 cup of baking soda. Pour 1 cup of baking soda into the bowl. You should start with 1 cup first. In fact, there is no exact amount of ingredients used for this slime. It doesn’t matter if it’s more or less than 1 cup. ^{[1] X Research Source}

Add green dishwashing liquid to the baking soda. Take a small amount of dishwashing liquid and add it to the baking soda. You should get the green one so that the finished slime is also green. Use a spoon to stir the dishwashing liquid. Add more dish soap until you have a creamy sauce-like consistency. ^{[2] X Research Source}

The amount of dishwashing liquid you use is not certain. Add a little at a time until you get the right texture. It will look like green pudding.

Add baking soda if the mixture is still thin. If you accidentally add too much dishwashing liquid, the slime will be a bit thin. If the slime looks like water, add baking soda to fix the problem. ^{[3] X Research Sources}

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Add a little food coloring if needed. If the slime is not as dark green as you want, add a few drops of food coloring. This will make the slime a darker green color.

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Play slime. You can put toys in slime to play. For example, pretending to see slimes as poisonous waste and having superheroes fly down to save the victim. You can also use slime to decorate the model. Making a model of a haunted house for example and using slimes increases fear.

Do not swallow slime. Do not put it in the mouth.

Make bubbly slime

Measure the vinegar into the bowl. Place 2 cups of white vinegar in a bowl. Use only white vinegar. Don’t replace it with something else like apple cider vinegar. ^{[4] X Research Sources}

Add xanthan gum. Xanthan gum is a thickener and stabilizer. You can buy it online or at a hardware store. Place 1 and 1/4 teaspoon xanthan gum in a bowl with vinegar and stir well. Continue stirring until no white particles remain and the mixture is smooth and transparent. ^{[5] X Research Sources}

Xanthan gum is sometimes difficult to find in supermarkets. You have to order online, so be sure to order a few days before you want to make slime.

Add green food coloring. A few drops of green food coloring will make the mixture look softer. You should only add a few drops first and gradually increase until the mixture has the desired color. ^{[6] X Research Sources}

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Refrigerate the mixture overnight. The mixture will remain thin after it is finished. For a thick texture, you should refrigerate the mixture. Although it only takes 2 to 3 hours for the mixture to thicken, it is best to leave it overnight. This helps the xanthan gum to dissolve completely. ^{[7] X Research Sources}

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Cover with baking soda on a flat surface. You should do this right at the sink or in the bath to have an easy-to-clean surface after you do it. Sprinkle baking soda over the top or bottom of the bowl you choose to coat the surface with. ^{[8] X Research Sources}

Stir the slime one more time. When you take the mixture out of the refrigerator, stir it one more time. Continue stirring until the slime looks cloudy and has a creamy consistency. ^{[9] X Research Source}

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Add vinegar until the texture is right. To check if the mixture is ready, scoop some of the mixture with a spoon and pour it back into the bowl. The mixture flows quickly into the bowl. If it is too thick and slows down, you should add a little vinegar to the stirrer. Continue adding vinegar until the mixture flows down easily. ^{[10] X Research Source}

Pour the mixture onto a surface covered with baking soda. Once the slime has thickened, pour it over the baking soda surface. Baking soda is a base and slime is an acid because of the presence of vinegar. Adding baking soda will make the slime foam. The more baking soda you add, the stronger and longer the slime will bubble.

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Play slime. There are many ways to play with slimes. You can imagine slime as poisonous water on some planet for example and play with toy astronauts. Alternatively, you can also use a toy dinosaur and imagine slime as a kind of slime in prehistoric times. For some people, just watching slime bubbling is enough.

Remember to wash the toys after playing with slimes.
Do not eat slime as it is not safe to swallow.

Make slime ppymer

Put the milk in the cup. You will need 7 tablespoons fat-free or skim milk in a cup or bowl. The fat in whole milk won’t give it the right texture, so don’t substitute whole milk or 2% fat in place of skim milk. ^{[11] X Research Source}

Add vinegar. Stir 1 tablespoon of vinegar into the milk. This amount of vinegar is enough to separate the protein in the milk. Adding vinegar increases the acidity in the milk and separates the protein. ^{[12] X Research Source}

You will see small clumps in the milk due to the milk reacting with the vinegar. These blocks will gradually sink to the bottom of the beaker as the reaction occurs.

Filter the mixture with a coffee filter. When the milk blocks sink to the bottom of the cup, pour the solution into the coffee filter paper. The liquid will drain off the filter paper and leave only the milky mass. Pat the milk cubes with a paper towel to make sure they’re dry and all the water out. Then, put the milk mass in the bowl. ^{[13] X Research Source}

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Mix in baking soda. After putting the milk mass in the bowl, add ¼ tablespoon of baking soda. The baking soda will help the protein solidify and give it a firmer texture. The mixture will gradually form slime. Add in the baking soda until you have a paste with a pudding-like texture. ^{[14] X Research Source}

Depending on the size of the milk mass you will add more baking soda. If you’re having trouble making the pudding mix, sprinkle with a little baking soda at a time until you have the right texture.

Advice

Observe young children playing with slimes.
If the slime is hard, add a little water.

Warning

Do not let children swallow slime.
Vinegar is an acid and baking soda is a base. Therefore, you should wear gloves and goggles when performing or observing the slime making process with these two substances.

Things you need

Skimmed milk
Bowls and spoons
Baking soda
White Vinegar
Green food coloring
Green dishwashing liquid
Coconut oil
Xanthan gum
Coffee filter paper

Steps