To keep dry rub from clumping, the primary goal is to protect it from moisture and heat, ideally storing it in an airtight container or a resealable bag away from warm environments.
Dry rubs are blends of spices, herbs, and sometimes sugar and salt. These ingredients, particularly those containing protein, are susceptible to absorbing moisture from the air. As the reference states, "There is moisture in the air that those proteins love causing clumping or hardness." This absorption leads the dry rub particles to stick together, forming clumps. Heat can exacerbate this issue by increasing humidity and temperature fluctuations around the rub.
Why Dry Rubs Clump
The main culprits behind dry rub clumping are:
- Moisture: Humidity in the air or introducing wet utensils can cause ingredients to bind together.
- Heat: Storing rubs near heat sources like stoves or ovens can create warm, humid microclimates that promote clumping. The reference specifically advises, "Keep your rubs, seasonings, and spices away from heat sources like stoves, ovens, microwaves, and dishwashers."
- Proteins & Sugars: As noted in the reference, proteins react with moisture, leading to clumping. Sugar also absorbs moisture readily and can solidify.
Effective Strategies to Prevent Clumping
Preventing clumping is all about keeping your dry rub dry and stored correctly.
- Airtight Storage: The most effective way to combat moisture is to use airtight containers. While dedicated spice jars work well, the reference offers a "low-budget option" which is "always using a resealable sandwich bag." Ensure the bag is sealed tightly, squeezing out excess air.
- Avoid Heat Sources: As highlighted by the reference, never store your dry rubs near appliances that generate heat. This includes:
- Stoves
- Ovens
- Microwaves
- Dishwashers
- Use Dry Utensils: Always use a completely dry spoon or measuring scoop when taking rub from the container. Even a tiny amount of moisture can introduce enough humidity to start the clumping process.
- Consider Moisture Absorbers: Some people add a few grains of uncooked rice or a desiccant packet (food-grade) to their spice jars or bags to help absorb excess moisture.
Practical Storage Tips
Follow these simple guidelines for long-lasting, clump-free dry rubs:
- Choose the Right Container: Opt for airtight jars, containers, or as a cost-effective alternative, a resealable sandwich bag.
- Seal Tightly: After each use, ensure the container is sealed completely.
- Select the Right Location: Store rubs in a cool, dark place like a pantry or cupboard, far away from any heat-generating appliances mentioned in the reference.
- Limit Air Exposure: Open the container only when necessary and re-seal quickly.
By following these steps, particularly keeping moisture out and storing away from heat sources as advised by the reference, you can significantly extend the life and usability of your dry rubs, preventing that frustrating clumping.
