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Clabber Girl Corporation | P.O. Box 150, Terre Haute, Indiana 47808 | (812) 232-9446 | info@clabbergirl.com

Click a question below to be taken to its answer, or browse our full list of FAQs below.

  • What is the shelf life of our products?

    Baking Powder
    If you have an unopened can of baking powder, please reference the expiration date on the bottom of the can. This date is two years after the day it was manufactured. If you have an opened can of baking powder, please use it within six months.

    Baking Soda
    Baking soda can be stored opened or unopened for up to two years. If you are using the soda in your refrigerator, it should be replaced every 30 days.

    Corn Starch
    Corn starch can be stored unopened or opened until the date on the bottom of the can.

  • How do I know if my baking powder is still good to use?
    There is no easy test for determining the acceptance of baking powder beyond the use-by date on the bottom of the can.  If your baking powder has been opened for more than 6 months, it may not have enough leavening action to leaven your recipe. You can test a small amount of powder in warm water to see if it fizzes, however, this is not a definitive way to test your powder. The baking powder may have enough leavening action to react in the water, but may not have enough to leaven a cupcake. If you are not sure how long your can has been open, we recommend replacing it so that you can avoid preparing a recipe that doesn’t leaven.
  • How should I store my baking powder?
    Baking powder, soda or corn starch should be stored in a dry cupboard away from heat and excess moisture. You should only measure with a dry utensil and replace the lid promptly after each use. If you use a utensil that has any moisture on it, you can cause a reaction inside the can and your baking powder may not work properly. Storage in a refrigerator or freezer is not recommended, as the condensation from your refrigerator can also cause moisture to form inside the can, causing a reaction. 
  • What is the difference between baking powder and baking soda?
    Baking soda is pure bicarbonate of soda also known as sodium bicarbonate. It is an alkaline ingredient, and when mixed with acidic ingredients, it reacts and releases bubbles of carbon dioxide. Baking soda is single acting, it only reacts once it is combined with moisture. It has baking and household uses.

    Baking powder is used for baking. It is made up of sodium bicarbonate (baking soda); an acid salt which reacts with moisture or heat, or both – such as tartaric acid, mono-calcium or combination of acid salts; and cornstarch (used to keep ingredients separated). Baking powder is double acting, it reacts once when mixed with moisture and again when it is exposed to high temperatures.
  • Are Clabber Girl products Gluten-Free?

    Here is a list of our naturally Gluten-Free products:

    • Clabber Girl Baking Powder
    • Clabber Girl Corn Starch
    • Rumford Baking Powder
    • Rumford Corm Starch
    • Davis Baking Powder
    • KC Baking Powder
    • Hearth Club Baking Powder
    • Hearth Club Corn Starch
    • Royal Baking Powder
    • Fleischmann’s Baking Powder
    • Rex Coffee

    All of our baking powders are below 20 ppm for presence of gluten.

  • Are Clabber Girl products Non-GMO?
    There are several products made by Clabber Girl that contain Non-GMO ingredients. Check the label on the can to find out if the product contains Non-GMO ingredients.
  • Since the peanut-free logo is no longer on the Clabber Girl /Rumford/ Royal/ Davis /Hearth Club (any of Clabber Girl brands) packaging, does that mean peanuts could be in the products?
    Peanuts are not an ingredient in any of the products Clabber Girl manufactures. Peanuts are not processed in any area of the manufacturing. All ingredients must be listed in the ingredient list and allergens declared on all labels. 
  • Could allergens be present in any of the ingredients produced by Clabber Girl? (Baking Powder, Corn Starch, Baking Soda – All brands)
    All ingredient products for all brands produced at Clabber Girl are produced on dedicated lines with no allergens. 
  • Are allergens used on the production lines on which the baking powder, corn starch and baking soda are packaged?
    All ingredient products for all brands produced at Clabber Girl are produced on dedicated lines with no allergens. 
  • Why is the peanut-free logo no longer on Clabber Girl / Rumford / /Davis / Hearth Club (any of Clabber Girl brands) packaging?
    Clabber Girl has changed the testing process for raw materials that are received at the plant.
  • Why was the allergen testing process changed?
    Clabber Girl initiated the process to test for peanut proteins when cookie mixes were being manufactured; the cookies were sold in schools and there was a greater concern among consumers over products that were finished goods (or close to finished goods). Clabber Girl ceased manufacturing cookie mixes in early 2014. 
  • How was the decision made to eliminate testing for peanut proteins and peanut-free logo?
    Consumer research was conducted with consumers impacted directly by a peanut and/or nut allergy. Only 1/3 of survey respondents read baking powder labels. Most shoppers participating in the study were concerned about finished baked products, significantly more than the baking powder as an ingredient. Most considered “product made in a nut-free facility” as a product safe to purchase. 
  • What steps does Clabber Girl take to ensure food safety?
    Clabber Girl maintains the highest level of food safety standards and allergen protocols. Clabber Girl follows GMP (Good Manufacturing Practices) which include hand washing, correct allergen labeling, and shoe covers. Segregation of allergens is required in order to maintain SQF certification. All manufacturing team members wear hair nets, uniforms and shoes specifically for the manufacturing facility. All visitors to the manufacturing areas wear hair nets, lab coats and shoe covers.
  • Are Clabber Girl products Kosher?
    Download a Kosher Certificate that lists all of our Kosher Certified Products.
  • Are Clabber Girl products Vegetarian or Vegan?
    All baking ingredients manufactured by Clabber Girl Corporation contain no animal products.  Additionally, all of the ingredients used in our products are free of animal products and are not derived from material of animal origins.
  • What are the differences between Clabber Girl and Rumford Baking Powders?
    Baking Powders differ in their reaction to moisture and heat depending on their formulation. Rumford Baking Powder's reaction is approximately 70% with moisture (or in the bowl) and the rest when heat is applied. Clabber Girl's reaction is approximately 40% with moisture and the rest when heat is applied. Some people prefer the Rumford brand because it does not contain the acid ingredient sodium aluminum sulfate.
  • What is the difference between double acting and single acting baking powders?
    For recipes calling for single acting baking powders, you may substitute a double acting baking powder. Leavening can happen by single and by double acting agents. In a single action product, such as baking soda, once exposed to moisture, it reacts once. In a double action product, such as baking powder, the products reacts once when it is exposed to moisture and then again when exposed to heat.
  • Are the Clabber Girl facilities available to rent for a wedding reception or special event?
    Clabber Girl has a variety of spaces available for rent. Fill out our contact us form to get in touch and reserve your space today! Clabber Girl can also cater your next event.
  • Where can I find Clabber Girl products?
    Clabber Girl and Rumford brands baking powder are available nationwide. Davis brand baking powder is located in Northeastern states and KC Baking Powder is popular in the Southwest. Most of our products are available at our online store.
  • What does the code on the bottom of the can mean?
    There should be an expiration date with month, day and year; additionally, the five digit code is the production date. For example, code #15017 would translate as the year 2015, the 17th day of the year or January 17, 2015. Download the Julian calendar to translate your day code to the month and day it was manufactured.