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Bath Fizzies




Ice-cube trays serve as molds, giving the fizzies their shape. Using a flexible silicone model lets you slide the cubes out smoothly without breaking them. Show off the colors of the bath fizzies in glass jars with screw tops, the kind used for storing sugar and flour. Pack each type of fizzy in a separate jar so the scents won't meld. Write the name of the scent on a vellum tag (choose a shade that matches the fizzies), and punch a hole in the top. Thread the tag with ribbon, and tie it around the jar. Citric acid, a common food additive, is available at wine-making-supply stores, some spice shops, and online. When citric acid is combined with baking soda and placed in water, a chemical reaction creates bubbles.

*Makes 1 dozen (Use 2 per bath).


  • 1/2 cup citric acid
  • 1 cup baking soda
  • 3/4 cup cornstarch
  • 1/4 cup organic cane sugar
  • About 6 drops food coloring
  • 10 to 15 drops essential oil(s)
  • Special equipment: 2-ounce travel-size spray bottle, plastic pipette, silicone ice-cube tray, storage jars


  1. Step 1

    Stir together citric acid, baking soda, and cornstarch in a glass measuring cup.

  2. Step 2

    Pass mixture through a fine sieve or a flour sifter into a mixing bowl. Stir in sugar.

  3. Step 3

    Fill spray bottle with water, and add food coloring. Spritz mixture lightly (it should become damp but not fizzy) until you can pack mixture with your hands.

  4. Step 4

    Using pipette, add oil, 1 drop at a time, until strength of scent is to your liking. Using a metal spoon or your hands, mix ingredients until color is even throughout (mixture will begin to dry out; when this happens, spritz until packable again).

  5. Step 5

    Spoon into ice-cube tray, pressing firmly. Let dry at room temperature overnight. Pop out of tray gently. Transfer to jars.

Martha Stewart Living, December 2008



Reviews (89)

  • bonniesbubble 23 Nov, 2014

    Never put Bath Fizzies in a glass jar!!! That is dangerous the bicarb and the citric acid can make the glass explode!!!

  • Kamille234 25 Oct, 2014

    If you watch the video, Martha actually uses 1/4 cup of epsom salt rather than a 1/4 cup of organic cane sugar. Epsom salt seems like a more natural choice for bath fizzies.

  • Jamie Bear 10 Aug, 2014

    Sugar causes yeast infections. I high recommend never bathing in it.

  • Spencer Leonardo 8 Apr, 2014

    attempted but after improvising quite a bit due to lack of instruction mine fell apart like way to easy

  • JenniferroseJRW 13 Dec, 2013

    *i was able to fill 12 mason jars with 6 fizzies. Enough for 3 baths.

  • JenniferroseJRW 13 Dec, 2013

    What a great gift for the holidays!
    The video said to add Epsom salt to the materials but not in the materials listed on line. I also found that more moisture will cause the blocks to rise while sitting overnight.
    Not only did I enjoy making the fiZzles... But I was also able to fill 12 mason jars (3 baths) of salts for a little under $50!

  • orangepanda28 17 Aug, 2013

    my bath bombs turned out very sticky and not like wet sand and wouldnt come out of the moulds, why is this. Also they kept reacting and expanding did I add too much of something?

  • shannonrober90 20 Oct, 2014

    The mixture should be the consistency of wet sand. I spritz with witch hazel instead of water. Only a few mist at a time and work it through the mixture until it moist but not wet. If you squeeze it and liquid comes out just add more epsom salt. If it's grainy and doesn't hold together at all then spritz a little more. I hope this helps.

  • granx4 11 May, 2013

    Citrus Acid is available out Walmart in the canning section. Ours is located in the housewares dept. I mixed this for a long time, but was unable to get it to stay together. I used the link from one of the other reviewers for another recipe and it turned out great.

  • ICTviaSEA 5 May, 2013

    Citric acid found on-line or in natural/whole food stores. I paid $8 for a pound, which is more than plenty.
    Mix with hand after five or six mists of water.
    You will have to mist a lot, but you will be able to tell when mixture is ready to pack.
    I used Epson salt instead if sugar. Bought at Walgreens.
    Improvised with round/half ball measuring teaspoon. Like making cookies. Goes faster than ice cube tray. Put rest of mixture in baggy as it dried out.

  • softsand4me 29 Nov, 2012

    Could you use a little non stick spray in regular cube trays?

  • softsand4me 29 Nov, 2012

    Im just wondering if you could spray a little non stick spray in a regular cube tray to prevent sticking?

  • softsand4me 29 Nov, 2012

    Enter your review...

  • JJone 3 Apr, 2012

    To: Miller2345: Putting the Fizzes in the oven will ruin them completely! Just add less water.

  • JJone 3 Apr, 2012

    To:Beth0664..your Bath Fizzes are spreading all over because of what is called.."bloom" used to much liquid! This happened to me for quite a number of just takes practice!

  • Beth0664 28 Jan, 2012

    I made these according to directions. I left the room for about 2 hours. When I cam back they have expanded....all over my counter?!?!?!?! What did I do wrong

  • miller2345 19 Jan, 2012

    You could put it in the oven, but i would suggest you set the oven at 150 degreds and keep the door open because you dont want to destroy the wonderfully healing properties in the essential oils. After 115 or so healing properties can be lost.

  • tcrane6 5 Dec, 2011

    Does anyone know what size jars are in the pictures?! I am going to make these but I want to make sure I get big enough jars. Thanks!

  • robin907 15 Oct, 2011

    I've gotten citric acid at my local authentic Indian foods store. Very cheap and easy.

  • CRAFTYME71 4 Mar, 2011

    Would the "bath snowball" recipe work in the silicone trays also? And can they be put in the oven for faster drying without losing the scent?

  • AliCali 2 Feb, 2011

    Ok, so I've tried this a few times with no success. Like a few other ladies mentioned, the mixture was just puffing up like crazy ove the edge of the ice cube tray. I was only adding enough water (or witch hazel) to get it damp so that I could mold it. What I found out was that it is actually moldable before it looks damp. The key is to TEST it after each spritz or 2, not just eyeball it. :)

  • NewOrleansSaint 10 Dec, 2010

    My Whole Foods doesn't sell citric acid in bulk; they only sell a 4oz. bottle for $4.99. I found a local wine making shop and they sell a 1 pound bag (32oz.) for $3.95!

    Google for a wine making shop in your city to avoid getting robbed by Whole Foods or the like.

  • karimha 9 Dec, 2010

    For Demia--corn flour in the UK is the same as corn starch in the US.

  • SloplessInSeattle 8 Dec, 2010

    I just made my first batch of these. I found some really cute heart silicone ice trays at hobby lobby and I tried to make them lavender with purple food coloring. About half of my fizzies turned out, the other half crumbling as i removed them. The biggest problem i had was that my didn't turn purple. I dont know if i didnt spray them enough or what, but they stuck together, just didnt get color. Any suggestions??

  • demia 2 Dec, 2010

    Hi I live in the UK and am having a hard time finding cornstarch. Can I use Gold Bond Cornstarch Plus Baby Powder?

  • ajtaylor007 14 Nov, 2010

    I used regular ice trays, and they turned out fine. I just did as someone else mentioned (she used cookie cutters) and popped the cubes out right after they set - about 5 to 10 minutes. I also added dried herbs (lavender and sage) to the mix, so that they float to the top of the bath when the fizzy dissolves. Dried rose buds or petals would be really nice too, I think.

  • GirlPlusDog 11 Nov, 2010

    I found citirc acid in the bulk Whole Body area at Whole Foods Market!

  • HealthNutz 10 Nov, 2010

    HEALTH NUTZ NATURAL FOOD STORE (organic/natural) in Albemarle, NC sells citric acid, essential oils, cornstarch, baking soda, sugar... Squeeze blueberries, blackberries, pomegranates (blues

  • HealthNutz 10 Nov, 2010

    HEALTH NUTZ NATURAL FOOD STORE (organic/natural) in Albemarle, NC sells citric acid, essential oils, cornstarch, baking soda, sugar... Squeeze blueberries, blackberries, pomegranates (blues

  • BeccAnne 18 Feb, 2010

    These work great with mini cookie cutters as forms. They set up in about 10 minutes after which you can gently push them through the forms and let them dry overnight. They will slightly round-out as they dry, but work with a variety of shapes -flowers, hearts, cookie-people etc.

  • qsbourland 22 Mar, 2009

    Instead of using water in the spray bottle try using witch hazel. They say water is the worst thing you can use on bath bombs because the water causes it to react.

  • maximum 26 Jan, 2009

    Fabulous gift kids can make for their families or their teachers!

  • MyvRocks382 23 Jan, 2009

    Also don't sieve the mix... I dont knw why it says 2 do this, it doesn let the citiric acid through, so just make sure u mix it well.

    Another thing u can add more sugar than that if u want since it is good for ur skin, also any type of oils u may want, such a jojoba oil, or avocado oil both great 4 ur skin, how much is up to u, how moisturizing do u want ur bath bomb to be!? I add vanilla extract 2 compliment the jasmine oil in mine. 15 drops of jasmine, about 1 tbsp of vanilla add slowly.

  • MyvRocks382 23 Jan, 2009

    Now to address crumbling! This is where u didnt get the mix damp enough, I spent over 1/2hr spritzing/mixing the water/food color into the mix. First MAKE SURE u invest in a good spritzer, it should release a nice layer of mist; if it releases large drops trash it. Once there is a nice even layer of light color, mix it in well, do this, not until u have he color u want but until u can take a handful of the mix squeeze it in ur hand and have hold its form. And make sure 2 pack it TIGHT.

  • MyvRocks382 23 Jan, 2009

    Where to buy Citric Acid? Check out GNC, or ur local Organic food store. NOT Whole Foods, when I say LOCAL I mean LOCAL...If you live in the WashDC metro area check out Yes! Organics in Cleveland Park (less than a block away from the Cleveland Park Metro Station), Also Rodmans in Tenley Town sells Sour Salt (Citric Acid;Just w/ a less alarming name, check the kosher section) Or just order it online, it is ultimately cheaper that way.

  • Rittah 8 Jan, 2009

    You can use a bigger bottle( f.ex after used windows spray, but first you should put there a boiling water to get rid of the toxic mixtures) :)

  • latte52 4 Jan, 2009

    Does anyone know where to get the 2 oz. spray bottle?

  • latte52 4 Jan, 2009

    Does anyone know where to get the 2 oz. spray bottle?

  • latte52 4 Jan, 2009

    Does anyone know where to get the 2 oz. spray bottle?

  • thefrostcollection 23 Dec, 2008

    I am having the smae trouble. Mine puffed over as well, all three times I made them. Perhaps the mixture is too damp? Can anyone help?

  • cheche1206 23 Dec, 2008

    I found the cilicone ice cube trays at I made the bath fizzies yesterday. One batch bubbled over like bread dough. Before it was dry I took the tops off and it bubbled over again. It was a mess. This morning I tried to get them out of the trays and most crumbled, I can't get them out. What did I do wrong?

  • graziela 22 Dec, 2008

    Sorry for the three posts, I didn't mean for that to happen.

  • graziela 22 Dec, 2008

    Click on the link below for a basic fizzy bath bomb recipe, I made these for all my guests that attended my baby shower. I didn't have any problems with this recipe.

  • graziela 22 Dec, 2008

    Click on the link below for a basic fizzy bath bomb recipe, I made these for all my guests that attended my baby shower. I didn't have any problems with this recipe.

  • graziela 22 Dec, 2008

    Click on the link below for a basic fizzy bath bomb recipe, I made these for all my guests that attended my baby shower. I didn't have any problems with this recipe.

  • metzalysa 20 Dec, 2008

    I went to Hobby Lobby and actually bought soap mold trays to use instead of the silicone trays. They were $2.47 a tray and had a mix between 5 to 8 different molds. They worked great! In the morning when I went to check on the fizzies, they fell right out of the trays perfectly!

  • NEWTONIAN 19 Dec, 2008

    WARNING: , use disposable gloves whem mixing to avoid food coloring stains.

  • NEWTONIAN 19 Dec, 2008

    I found trays at Bed bath and Beyond that make cute gum drop shapes. (and cheap at $4.99 for two trays) I had good luck leaving the trays on a cookie sheet in my oven overnight (turned off). They dired well and no crumbling.

  • SuzyJasper 17 Dec, 2008

    I found citric acid at my whole foods store, in bulk. I've had mixed results though: silicone molds are a MUST. Believe it or not I found 3 sets of stars at goodwill :). Wilton has little squares and that tray can go in the dishwasher.
    One time I let dry on the stove and a double batch had "exploded" overnight. My last batch must not have been wet enough and crumbled out of the molds. Start early!!

  • jhuggler 16 Dec, 2008

    mold needs to be silicone otherwise you can't get them out.

  • Scooter1021 16 Dec, 2008

    I am planning on making these for Christmas gifts. Oh, pray tell, where in the world do you find citric acid?

  • janeDG 16 Dec, 2008

    I was going to make mine in guest sized soap molds---does anyone think this will work? I am worried about the "silicone" part !

  • hollystyle 15 Dec, 2008

    My daughter and were hoping to make these as fun gifts. But out of 5 tries only one batch has turned out correctly. We have all of the recommended tools and have varied the amount of spritzing with no success-they continue to crumble when we take them out of the silicone trays but the tops are very hard. Has anyone perfected this recipe to let us know what we're doing wrong? Please and thank you.

  • Jlaf 13 Dec, 2008

    I found the ice cube molds at La Sur Table. I plan to make them today.

  • gannaberry 11 Dec, 2008

    I could not find ice tray molds. I did find silicone mini muffin/cupcake molds that worked well (Michaels and Bed, Bath, Beyond). Also, found silicone trays in the shape of larger hearts and christmas trees that worked great. The trick is to add food coloring to the 2 oz sprayer. Get the mixture just wet enough to press together, add a few drops of oil to the mixture, spritz again, and press in molds. Crumbly like a pie crust-any more and it bubles up and gets crazy.

  • gannaberry 11 Dec, 2008

    I tried them in a hard tray and could not get them out, some broke, some stuck. I have not found ice cube trays but have found mini sized silicone cupcake/muffin pans. They work great. I have also found some larger Silicone molds in the shape of christmas trees and hearts that have worked quite well. If the mixture gets over wet it fuzzes all over the place. It just needs enough moisture to mold-like a pie crust.

  • Mandy31 11 Dec, 2008

    I haven't made these yet, hoping to this weekend. I haven't had any luck finding the silicone ice cube tray. Has anyone tried these in a traditional ice cube tray?

  • ggmart 11 Dec, 2008

    if you want to ADD stress to your holiday, make these! I'm on my third try on these and still without success. Mixture is recyclable tho, so I'm adding to jar with a scoop.

  • Joy54 11 Dec, 2008

    Mandy31 - So did you have any trouble with getting the mixture too wet or having it not dry in the molds?

  • janeDG 10 Dec, 2008

    Where do I get vellum tags?

  • wholesomemary 9 Dec, 2008

    I purchased mine from after searching all the placed I buy my canning supplies. This is the best deal at $2.99

  • Mandy31 8 Dec, 2008

    I purchased citric acid at our local health market. I was unable to find it in the store without asking for help. It cost $5

  • Ziora 7 Dec, 2008

    Can you buy citric acid at the grocery store?

  • TanyaLikesPie 6 Dec, 2008

    to ewolff: you can't use lemon juice, because it is a liquid and it will cause the acid to react with the baking soda. leaving you without the fizzy result youre looking for when you drop it into the tub. although I wonder if powdered lemon would have the same effect?
    oh and Citric Acid is also available in some Health Food stores. but a warning, this stuff is hard to find in shops around this time of year. (i tried making them last minute for last years xmas.)

  • ewolff 6 Dec, 2008

    could you just use lemon juice instead of citric acid? that would add fragrance as well.

  • varianelle 6 Dec, 2008

    Just make sure that your recipient doesn't have a sulfite sensitivity or they could have a serious allergic type reaction because of the corn starch. I have sulfite sensitivity.

  • 1Toffy 6 Dec, 2008

    This recipe will fizz a little when the water hits it. Generally fizzing quickly and it is over. Then the nice bath is just that a relaxing and nice soak in the tub. This is the first recipe I have seen tho' with sugar in it. Sugar is good for the skin, hence Sugar Scrubs with good for the skin oils making us soft and silky and exfoliated. As for KoolAid. I wouldn't use it because KoolAid can stain. But give it a try if you wish. The organic sugar wouldn't be necessary, regular sugar works too.

  • ramonabrinkmann 6 Dec, 2008

    I wonder if you could use kool aid for this, too? It would add colour and fragrance at the same time...

  • civilizationinruins 4 Dec, 2008

    Citric acid is sometimes packaged as "sour salt" and found in the canning or kosher section of some supermarkets, though usually in 7 or 8 oz. jars for around $3. You'd need a whole jar for this recipe.
    The purpose of bath fizzies, besides adding fragrance, is to soften the bath water so your soap and shampoo lather more and clean better.

  • carriesibley 4 Dec, 2008

    It sounds like it fizzes and bubbles after putting in the water instead of just a lump put in your bath water that just sits there and disolves with no action.

  • Sissy 4 Dec, 2008

    Besides fragrance, what is the purpose of bath fizzies?

  • cookingmylife 4 Dec, 2008

    Pickle jars would be a good size for this.

  • gfbecker 4 Dec, 2008

    Where do you buy citric acid?

  • mom24_7 4 Dec, 2008

    If contact with water is what makes this "fizz" doesn't spraying it compremize the effect?

  • vouvou275 4 Dec, 2008

    I used glass pickle jars and covered the lid with fabric

  • mangotreelover 3 Dec, 2008

    For cheap jars, check out your local dollar stores. They almost always have nice glass jars, and you can't beat $1. Another great place to try are the local thrift stores. You can often find some really unique jars for cheap. If you can't find one you like with a lid, just use nice cloth, and tie it off with ribbon.

  • gettinhitched09 2 Dec, 2008

    I am looking for some rather cheap, unique glass jars. Has anyone found any or know where I can get some? Thanks for the help!

  • Barbaracis 2 Dec, 2008

    I was planning on using peanut butter jars clear plastic most have colorful lids and then use a cut out card to cover the brand name.

  • jenniferatxo 1 Dec, 2008

    I've found it in health food stores.

  • DarkRavyn 30 Nov, 2008

    you can find citric acid at wine making stores. i purchased a 1kg bag (2.2lbs) for $ can however, find better deals on the internet...just give it a google

  • klee924 28 Nov, 2008

    Has anyone been able to find citric acid? If so where? .... 'Cause I haven't had any luck finding it, anywhere.

  • janiceram 26 Nov, 2008

    The fizzies overflowed quite a bit in the tray. Did I spritz too much water in the mixing process?

  • sdarte5 25 Nov, 2008

    I purchased the ice cube tray in the article from Sur La Table. $12.99. Silicon trays are the best idea (in my opinion). Also Ikea has tons of different shaped silicon ice cube trays for really, really cheap.

  • tucsonteresa 24 Nov, 2008

    Has anyone been able to make these? Did you have a silicon ice cube tray? Where did you find it? Has anyone made them in another device?

  • Goldielinds 22 Nov, 2008

    I purchased a 50g bag of powdered citric acid from a wine store. Does anyone know if it's used in its powdered form or is it supposed to be diluted?

  • mccosham 22 Nov, 2008

    I had to or a 1kilo bag from a wine making store nearby

  • northjl2002 21 Nov, 2008

    I've looked at 3 grocery stores for ctiric acid. Has anybody found it easily in a grocery store?

  • jaxjoey 21 Nov, 2008

    Can you use epson salt instead of sugar?

  • mccosham 18 Nov, 2008

    Any idea the storage life on each cube? I'm worried if I make them too close to Christmas that they won't be as effective.