How to Buy Citric Acid: 9 Steps (with Pictures) - wikiHow (2024)

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1Buying Food Grade Citric Acid

2Buying Citric Acid for General Use

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Co-authored byMeredith Juncker, PhD

Last Updated: February 2, 2024Fact Checked

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Citric acid is available for purchase through many different types of stores. Where you choose to buy citric acid depends on what you plan to use it for and how much you wish to purchase. Citric acid is a weak acid naturally found in citrus fruits that individuals and manufacturers often use because of its preservative and chelating properties and sour taste.[1] Citric acid is important for canning, cheese-making, homebrewing, and candy making, and is an ingredient in some recipes and beverages to regulate acidity. People also use citric acid for craft projects such as fizzing bath salts, or may be interested in purchasing citric acid for laboratory experiments.[2] You can buy citric acid in either anhydrous (water-free) or in monohydrate form.

Method 1

Method 1 of 2:

Buying Food Grade Citric Acid

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  1. 1

    Determine how much citric acid you need to buy. The amount you need will determine where you should shop for citric acid. Smaller quantities can generally be purchased at the grocery store, while larger quantities may need be purchased at a bulk store or online.

    • Consult the instructions for your activity or recipe to see how much citric acid they indicate you need to use for your project.
    • Increase the amount of citric acid if you plan to make multiple batches of a recipe or want to have an ample amount for repeating the activity. For example, if you plan to use citric acid for cheese-making, and you want to make your own cheese on a regular basis, you will want to buy enough citric acid for multiple uses.
  2. 2

    Look for citric acid at your local supermarket. Food grade citric acid is normally available in a powder form. Typically, it is best to buy citric acid at a grocery store when you need a small amount, for example, a bottle with 3 to 5 ounces (85 g to 142 g).

    • Check for citric acid in the canning section. It is often located near the pectin and other canning ingredients and materials.[3]
    • Look for citric acid under the name sour salt in the kosher section or in the spice aisle.[4]

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  3. 3

    Check natural food stores for citric acid. Health food stores often carry citric acid and may have a greater range of sizes available than standard grocery stores. Call the store before stopping by to make sure they have the amount you need in stock.

  4. 4

    Shop at a restaurant supply store. Restaurant supply stores, especially baking or candy-making supply stores, are likely to carry citric acid. These types of stores will likely have quantities available in bulk as well. If you need a large amount, check here first.

    • Plan to purchase at least 1 pound (.45 kg) of citric acid. Smaller quantities may not be available.
  5. 5

    Find a store that sells home brewing supplies. Homebrewers often use citric acid, for example to adjust to acid level in fruit wines.[5] A store that caters to home brewers may also have knowledgeable staff that can provide detailed information on how to use citric acid for your particular project.

  6. 6

    Shop online. Online retailers sell small to large containers of citric acid and many online stores sell it by the pound. You can skip the shopping and have the citric acid delivered right to your door. If you are using the citric acid in something that will be consumed, remember to order food grade citric acid.

    • Take into account that shipping costs may make it more expensive to buy citric acid online than at a local restaurant supply or warehouse store. However, online prices are generally more competitive than supermarket prices per ounce.
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Method 2

Method 2 of 2:

Buying Citric Acid for General Use

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  1. 1

    Choose which form of citric acid you want to purchase. Citric acid is available as a monohydrate and in anhydrous form. Anhydrous means there is no water, so the citric acid is more powdery than the monohydrate form that has water.[6]

    • Anhydrous citric acid is usually used in bath bombs, but the monohydrate form will also work.
    • Unless the project specifies the use of one form over the other, either one should work.
  2. 2

    Check craft stores for citric acid. Anhydrous citric acid may be available in the soap-making section of craft stores as it is a common ingredient in fizzing bath bombs. Call the store before going there to make sure they have the quantity in stock you need.

  3. 3

    Buy citric acid through a chemical supply company. A chemical supply source will provide the greatest number of options in terms of grade, texture, quantity, and form. Read through your supplier's definitions of the grades they sell. Many suppliers also create their own grade labels to indicate the quality of the chemical. Citric acid is available in different grades including:

    • Food Chemical Codex (FCC)- food grade
    • American Chemical Society (ACS) grade- the substance meets the standards set forth by the ACS for reagent chemicals in their publication.[7]
    • United States Pharmacopeia (USP) grade- a substance that meets the specifications in the "Reagents, Indicators and Solutions" section of the USP.
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  • Question

    Can I use cleaning citric acid for bath bombs?

    How to Buy Citric Acid: 9 Steps (with Pictures) - wikiHow (14)

    Community Answer

    Yes, you can. There are different types of citric acids used for different experiments, but cleaning citric acid works just as well.

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    Can I clean a diffuser that I have used essential oils in?

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    Yes. My operator's manual says to use citric acid mixed with water and let it sit for 5 minutes or longer.

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    Will citric acid remove rust?

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    Community Answer

    Yes, add enough citric acid powder directly to warm water to make a 10% solution. Soak the item you want to clean in the solution for a few minutes to hours until the rust is removed. Citric acid will not strip paint and cut through grease, so these contaminants need to be removed before soaking.

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      Warnings

      • Wear protective gloves to avoid skin irritation when handling citric acid, especially if you have sensitive skin.

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      • Don't use any citric acid that isn't food grade for baking, candy-making, canning, cheese making or home brewing. Citric acid that may be suitable for a bath bomb may not be safe for consumption.

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      About This Article

      How to Buy Citric Acid: 9 Steps (with Pictures) - wikiHow (29)

      Co-authored by:

      Meredith Juncker, PhD

      Scientific Researcher

      This article was co-authored by Meredith Juncker, PhD. Meredith Juncker is a PhD candidate in Biochemistry and Molecular Biology at Louisiana State University Health Sciences Center. Her studies are focused on proteins and neurodegenerative diseases. This article has been viewed 547,367 times.

      35 votes - 94%

      Co-authors: 21

      Updated: February 2, 2024

      Views:547,367

      Categories: Chemistry

      Article SummaryX

      To buy citric acid, begin by looking at your local grocery store, which usually carries it in the canning section. If you need a large amount, consider a restaurant supply store, since they may sell it in bulk. Alternatively, you can order citric acid online through many different retailers and have it shipped to your home. To learn the difference between monohydrate and anhydrous citric acid, read on!

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      FAQs

      How do you buy citric acid? ›

      Look for citric acid at your local supermarket.

      It is often located near the pectin and other canning ingredients and materials. Look for citric acid under the name sour salt in the kosher section or in the spice aisle.

      How do you make a 10 citric acid solution? ›

      To Make a Citric Acid 10% Solution: Combine 10 grams of citric acid powder with 100 grams of water. Whisk to dissolve and bottle. To Make a Malic Acid 10% Solution: Combine 10 grams of malic acid powder with 100 grams of water. Whisk to dissolve and bottle.

      How much citric acid should I use? ›

      Here are some great measuring tips for cooking with citric acid: ¼ tsp of powdered citric acid is equivalent to 1 tbsp of lemon juice. 1 tsp of powdered citric acid is equivalent to ¼ cup lemon juice (4 tbsps). Keep fruits and vegetables fresh by soaking them in a mix of ⅛ tsp of citric acid for every 3 cups of water.

      Can you buy citric acid at a pharmacy? ›

      Yes. Citric acid monohydrate is natural as it's typically derived from citrus produce.

      What is the best form of citric acid? ›

      Foods that are high in natural citric acid are citrus fruits, especially the juice of lemons and limes. Other fruits and vegetables also contain some natural citric acid. These foods have the highest amounts of naturally occurring citric acid: Lemons.

      What should you not use citric acid on? ›

      Citric acid should not be used to clean stone surfaces such as marble and granite. Citric acid can be used to clean many types of metal, but not copper or brass.

      Can I make citric acid at home? ›

      Add 28.5 g (1.01 oz) of calcium chloride to 70 ml (0.30 c) of distilled water. Do this in a separate beaker from your lemon juice solution. Mix the two together in a small beaker, and stir it until all of the calcium chloride has been dissolved. Combine both solutions and bring the mixture to a boil.

      What concentration of citric acid for cleaning? ›

      Cleaning with Citric Acid is very easy. Simply mix the powder (anhydrous) form with water into a 5-7% solution. This should be sufficient for light descaling, removing mineral deposits, hard water stain removal, etc.

      What does citric acid do to your body? ›

      Citric acid enhances the bioavailability of minerals, allowing your body to better absorb them (12, 13 , 14 ). For example, calcium citrate doesn't require stomach acid for absorption. It also has fewer side effects — such as gas, bloating, or constipation — than another form called calcium carbonate ( 15 , 16 ).

      Will citric acid clean a toilet bowl? ›

      Citric acid is very commonly used to clean toilets. This is because It smells pleasantly fresh and is less pungent than vinegar. Mix two to three tablespoons of citric acid powder with one litre of water – always add the water to the bucket before the citric acid to avoid splashes.

      What happens if you use too much citric acid? ›

      Citric acid may be good for you, but in higher amounts may cause damage to your tooth enamel, digestive issues, allergic reactions, and interactions with medications. Most people do not need to supplement citric acid, though. Citric acid is a weak organic acid found in many foods.

      How much water do you add to citric acid? ›

      Solutions with higher and lower concentrations of citric acid have differences in regards to potency, shelf life, and cost. A higher concentration of citric acid solution will store better than a lower concentration solution. A good measure is 1 lb. (454 g) of citric acid powder to 1 pint (470 ml) of water.

      What is the closest thing to citric acid? ›

      You can replace citric acid with white vinegar or lemon juice. Use around 1/3rd of a cup of white vinegar, or around 1/3rd of a cup of lemon juice. You will get a mild to moderate flavor of the substitute acidifying agent.

      What is another name for citric acid? ›

      Citric acid
      Names
      IUPAC name Citric acid
      Preferred IUPAC name 2-Hydroxypropane-1,2,3-tricarboxylic acid
      Identifiers
      CAS Number77-92-9
      61 more rows

      Who should not take citric acid? ›

      You should not use citric acid and sodium citrate if you have: severe kidney disease; decreased urination (or if you are unable to urinate); severe heart damage (such as from a heart attack);

      Is citric acid the same as citric juice? ›

      The difference between citric acid and lemon juice is that citric acid is a concentrated acid compound, while lemon juice contains citric acid, water, vitamin C, and other molecules. Lemon juice also has nutritional value, but citric acid contains no nutrients and very few calories.

      Is citric acid and vinegar the same thing? ›

      Citric acid and vinegar are both acids, but citric acid is also a mild reducing agent, meaning it can do chemistry that acetic acid (vinegar) cannot,” said Beckman.

      What is citric acid and why is it used? ›

      Citric acid is a weak organic acid that occurs naturally in produce, such as citrus fruits. It is used in food, cosmetics, and cleaning products. Citric acid is a naturally occurring antioxidant. People use it as a food flavoring and preservative, an ingredient in cosmetics, and a component in cleaning products.

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